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Electrically controllable spin filtering in zigzag phosphorene nanoribbon based normal–antiferromagnet–normal junctions
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作者 李锐岗 刘军丰 汪军 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第1期666-670,共5页
We investigated the electric controllable spin-filtering effect in a zigzag phosphorene nanoribbon(ZPNR) based normal–antiferromagnet–normal junction. Two ferromagnets are closely coupled to the edges of the nanorib... We investigated the electric controllable spin-filtering effect in a zigzag phosphorene nanoribbon(ZPNR) based normal–antiferromagnet–normal junction. Two ferromagnets are closely coupled to the edges of the nanoribbon and form the edge-to-edge antiferromagnetism. Under an in-plane electric field, the two degenerate edge bands of the edge-to-edge antiferromagnet split into four spin-polarized sub-bands and a 100% spin-polarized current can be easily induced with the maximal conductance 2e~2/h. The spin polarization changes with the strength of the electric field and the exchange field,and changes sign at opposite electric fields. The spin-polarized current switches from one edge to the other by reversing the direction of the electric field. The edge current can also be controlled spatially by changing the electric potential of the scattering region. The manipulation of edge current is useful in spin-transfer-torque magnetic random-access memory and provides a practical way to develop controllable spintronic devices. 展开更多
关键词 zigzag phosphorene electrically controllable spin filter quantum transport
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Oscillation of Dzyaloshinskii–Moriya interaction driven by weak electric fields
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作者 陈润泽 曹安妮 +3 位作者 王馨苒 柳洋 杨洪新 赵巍胜 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第2期487-491,共5页
Dzyaloshinskii–Moriya interaction(DMI) is under extensive investigation considering its crucial status in chiral magnetic orders, such as Néel-type domain wall(DW) and skyrmions. It has been reported that the in... Dzyaloshinskii–Moriya interaction(DMI) is under extensive investigation considering its crucial status in chiral magnetic orders, such as Néel-type domain wall(DW) and skyrmions. It has been reported that the interfacial DMI originating from Rashba spin–orbit coupling(SOC) can be linearly tuned with strong external electric fields. In this work, we experimentally demonstrate that the strength of DMI exhibits rapid fluctuations, ranging from 10% to 30% of its original value, as a function of applied electric fields in Pt/Co/MgO heterostructures within the small field regime(< 10-2V/nm). Brillouin light scattering(BLS) experiments have been performed to measure DMI, and first-principles calculations show agreement with this observation, which can be explained by the variation in orbital hybridization at the Co/MgO interface in response to the weak electric fields. Our results on voltage control of DMI(VCDMI) suggest that research related to the voltage control of magnetic anisotropy for spin–orbit torque or the motion control of skyrmions might also have to consider the role of the external electric field on DMI as small voltages are generally used for the magnetoresistance detection. 展开更多
关键词 Dzyaloshinskii-Moriya interaction weak electric field control effect Rashba spin-orbit coupling interfacial orbital hybridization
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Research on Electrical Automation Control Design Based on PLC Technology
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作者 He Yu 《Journal of Electronic Research and Application》 2024年第4期174-179,共6页
As science and technology continue to progress forward,electrical automation engineering is also developing,of which programmable logic controller(PLC)technology is widely being used.Through the integration of PLC tec... As science and technology continue to progress forward,electrical automation engineering is also developing,of which programmable logic controller(PLC)technology is widely being used.Through the integration of PLC technology and traditional electrical automation technology,good development of modern science and technology is promoted while traditional automation is preserved.The development of electrical engineering can greatly improve the strength of science,technology,and economy in our country.Based on PLC technology,this paper analyzes the design of electrical automation control. 展开更多
关键词 PLC technology electrical automation control DESIGN
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Sliding Mode Control Approach for Electrically Controllable Clutch of AMT Based on the Feedback Linearization 被引量:1
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作者 程东升 张建武 +1 位作者 叶晓峰 黄维纲 《Journal of Donghua University(English Edition)》 EI CAS 2003年第3期88-93,共6页
A sliding mode control approach based on the feedback linearization is proposed for the electrically controllable clutch of AMT vehicles. The nonlinear dynamic model for the hydraulic actuator associated with clutch i... A sliding mode control approach based on the feedback linearization is proposed for the electrically controllable clutch of AMT vehicles. The nonlinear dynamic model for the hydraulic actuator associated with clutch is established. By means of the exact feedback linearization procedure of differential geometry, an equivalent, fully controllable and linear model is derived via a homomorphic transformation for the AMT clutch system.Furthermore, a sliding mode control is introduced to improve robustness. The tracking tests are performed using the sliding mode control on a Santana LX passenger car, and the experimental results prove that this nonlinear controller is of fine robustness and high degree of tracking accuracy. 展开更多
关键词 electrically controllable clutch exact feedback linearization sliding mode control ROBUSTNESS
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Simulation of optical and electrical synaptic functions in MoS_(2)/α-In_(2)Se_(3) heterojunction memtransistors
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作者 相韬 陈凤翔 +3 位作者 李晓莉 王小东 闫誉玲 汪礼胜 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第11期562-569,共8页
Memtransistors combine memristors and field-effect transistors, which can introduce multi-port control and have significant applications for enriching storage methods. In this paper, multilayer α-In2Se3and MoS2were t... Memtransistors combine memristors and field-effect transistors, which can introduce multi-port control and have significant applications for enriching storage methods. In this paper, multilayer α-In2Se3and MoS2were transferred to the substrate by the mechanical exfoliation method, then a heterojunction MoS_(2)/α-In_(2)Se_(3) memtransistor was prepared. Neural synaptic simulations were performed using electrical and optical pulses as input signals. Through measurements, such as excitatory/inhibitory post-synaptic current(EPSC/IPSC), long-term potentiation/depression(LTP/LTD), and paired-pulse facilitation/depression(PPF/PPD), it can be found that the fabricated device could simulate various functions of neural synapses well, and could work as an electronic synapse in artificial neural networks, proposing a possible solution for neuromorphic storage and computation. 展开更多
关键词 α-In_(2)Se_(3) MoS_(2) dual-gate control by electric and light neural synaptic function simulation
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Fault tolerant control of electric pitch control system based on single current detection
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作者 李宏伟 付勃 +2 位作者 董海鹰 杨立霞 王睿敏 《Journal of Measurement Science and Instrumentation》 CAS CSCD 2016年第1期63-70,共8页
In view of the current sensors failure in electric pitch system,a variable universe fuzzy fault tolerant control method of electric pitch control system based on single current detection is proposed.When there is sing... In view of the current sensors failure in electric pitch system,a variable universe fuzzy fault tolerant control method of electric pitch control system based on single current detection is proposed.When there is single or two-current sensor fault occurs,based on the proposed method the missing current information can be reconstructed by using direct current(DC)bus current sensor and the three-phase current can be updated in time within any two adjacent sampling periods,so as to ensure stability of the closed-loop system.And then the switchover and fault tolerant control of fault current sensor would be accomplished by fault diagnosis method based on adaptive threshold judgment.For the reconstructed signal error caused by the modulation method and the main control target of electric pitch system,a variable universe fuzzy control method is used in the speed loop,which can improve the anti-disturbance ability to load variation,and the robustness of fault tolerance system.The results show that the fault tolerant control method makes the variable pitch control system still has ideal control characteristics in case of sensor failure although part of the system performance is lost,thus the correctness of the proposed method is verified. 展开更多
关键词 electric pitch control fault tolerant control variable universe fuzzy control single current detection
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Direct Yaw Moment Control for Distributed Drive Electric Vehicle Handling Performance Improvement 被引量:30
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作者 YU Zhuoping LENG Bo +2 位作者 XIONG Lu FENG Yuan SHI Fenmiao 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2016年第3期486-497,共12页
For a distributed drive electric vehicle(DDEV) driven by four in-wheel motors, advanced vehicle dynamic control methods can be realized easily because motors can be controlled independently, quickly and precisely. A... For a distributed drive electric vehicle(DDEV) driven by four in-wheel motors, advanced vehicle dynamic control methods can be realized easily because motors can be controlled independently, quickly and precisely. And direct yaw-moment control(DYC) has been widely studied and applied to vehicle stability control. Good vehicle handling performance: quick yaw rate transient response, small overshoot, high steady yaw rate gain, etc, is required by drivers under normal conditions, which is less concerned, however. Based on the hierarchical control methodology, a novel control system using direct yaw moment control for improving handling performance of a distributed drive electric vehicle especially under normal driving conditions has been proposed. The upper-loop control system consists of two parts: a state feedback controller, which aims to realize the ideal transient response of yaw rate, with a vehicle sideslip angle observer; and a steering wheel angle feedforward controller designed to achieve a desired yaw rate steady gain. Under the restriction of the effect of poles and zeros in the closed-loop transfer function on the system response and the capacity of in-wheel motors, the integrated time and absolute error(ITAE) function is utilized as the cost function in the optimal control to calculate the ideal eigen frequency and damper coefficient of the system and obtain optimal feedback matrix and feedforward matrix. Simulations and experiments with a DDEV under multiple maneuvers are carried out and show the effectiveness of the proposed method: yaw rate rising time is reduced, steady yaw rate gain is increased, vehicle steering characteristic is close to neutral steer and drivers burdens are also reduced. The control system improves vehicle handling performance under normal conditions in both transient and steady response. State feedback control instead of model following control is introduced in the control system so that the sense of control intervention to drivers is relieved. 展开更多
关键词 direct yaw moment control distributed drive electric vehicle handling performance improvement state feedback control
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Wide speed range for traction motor in braking force of electric braking control system 被引量:2
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作者 Young-Choon Kim Moon-Taek Cho 《Journal of Central South University》 SCIE EI CAS 2014年第10期3837-3843,共7页
A vehicle stopping method using an electric brake until a traction motor is stopped is studied. At the moment of vehicle stop, electric brake is changed to control mode where torque is reduced at a low speed. Gradient... A vehicle stopping method using an electric brake until a traction motor is stopped is studied. At the moment of vehicle stop, electric brake is changed to control mode where torque is reduced at a low speed. Gradient is controlled by estimating the load torque of motor, thereby traction motor is not rotated after stop. In addition, coasting operation and brake test are performed from normal-opposite operation and start using a small-scale model comprising the inertial load equipment and the power converter. Further, traction motor is made to be equipped with a suspension torque. Pure electric braking that makes traction motor stop by an air brake at the time of stop is also implemented. Constant torque range and constant power range are expanded during braking so that braking force is secured with the electric brakes even in high speed region. Therefore, vehicle reduction effect can be expected by reducing parts related with an air brake which is not used frequently by using a pure electric brake in the M car in wide speed region. Further, maintenance of brake system can be reduced. Besides, ride comfort of passenger in the electric rail car, energy efficiency improvement, and noise reduction effect can be additionally expected. Further, an improved brake method that uses only an electric brake till motor stop is proposed by comparing those in the blending brake that uses an air brake while reducing brake torque at vehicle stop. 展开更多
关键词 wide speed range electric braking control traction motor
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Room-temperature electric control of exchange bias effect in CoO1-δ/Co films using Pb(Mg1/3Nb2/3)0.7Ti0.3O3 (110) substrates 被引量:1
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作者 Xin Wen Rui Wu +4 位作者 Wen-Yun Yang Chang-Sheng Wang Shun-Quan Liu Jing-Zhi Han Jin-Bo Yang 《Chinese Physics B》 SCIE EI CAS CSCD 2020年第9期564-568,共5页
Significant electric control of exchange bias effect in a simple CoO1-δ/Co system, grown on piezoelectric Pb(Mg1/3Nb2/3)0.7Ti0.3O3 (110) (PMN-PT) substrates, is achieved at room temperature. Obvious changes in both t... Significant electric control of exchange bias effect in a simple CoO1-δ/Co system, grown on piezoelectric Pb(Mg1/3Nb2/3)0.7Ti0.3O3 (110) (PMN-PT) substrates, is achieved at room temperature. Obvious changes in both the coercivity field (HC) and the exchange bias field (HE), of 31% and 5%, respectively, have been observed when the electric field is applied to the substrate. While the change of coercivity is related to the enhanced uniaxial anisotropy in the ferromagnetic layer, the change of the exchange bias field can only originate from the spin reorientation in the antiferromagnetic CoO1-δ layer caused by the strain-induced magnetoelastic effect. A large HE/HC > 2, and HE~ 110 Oe at room temperature, as well as the low-energy fabrication of this system, make it a practical system for spintronic device applications. 展开更多
关键词 electric control exchange bias PMN-PT magnetic anisotropy
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Real-time and wearable functional electrical stimulation system for volitional hand motor function control using the electromyography bridge method 被引量:5
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作者 Hai-peng Wang Zheng-yang Bi +3 位作者 Yang Zhou Yu-xuan Zhou Zhi-gong Wang Xiao-ying Lv 《Neural Regeneration Research》 SCIE CAS CSCD 2017年第1期133-142,共10页
Voluntary participation of hemiplegic patients is crucial for functional electrical stimulation therapy.A wearable functional electrical stimulation system has been proposed for real-time volitional hand motor functio... Voluntary participation of hemiplegic patients is crucial for functional electrical stimulation therapy.A wearable functional electrical stimulation system has been proposed for real-time volitional hand motor function control using the electromyography bridge method.Through a series of novel design concepts,including the integration of a detecting circuit and an analog-to-digital converter,a miniaturized functional electrical stimulation circuit technique,a low-power super-regeneration chip for wireless receiving,and two wearable armbands,a prototype system has been established with reduced size,power,and overall cost.Based on wrist joint torque reproduction and classification experiments performed on six healthy subjects,the optimized surface electromyography thresholds and trained logistic regression classifier parameters were statistically chosen to establish wrist and hand motion control with high accuracy.Test results showed that wrist flexion/extension,hand grasp,and finger extension could be reproduced with high accuracy and low latency.This system can build a bridge of information transmission between healthy limbs and paralyzed limbs,effectively improve voluntary participation of hemiplegic patients,and elevate efficiency of rehabilitation training. 展开更多
关键词 nerve regeneration functional electrical stimulation logistic regression rehabilitation of upper-limb hemiplegia electromyography control wearable device stroke frequency-modulation stimulation hand motion circuit and system real-time neural regeneration
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Electrical control of magnetism in oxides
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作者 宋成 崔彬 +2 位作者 彭晶晶 毛海军 潘峰 《Chinese Physics B》 SCIE EI CAS CSCD 2016年第6期29-44,共16页
Recent progress in the electrical control of magnetism in oxides,with profound physics and enormous potential applications,is reviewed and illustrated.In the first part,we provide a comprehensive summary of the electr... Recent progress in the electrical control of magnetism in oxides,with profound physics and enormous potential applications,is reviewed and illustrated.In the first part,we provide a comprehensive summary of the electrical control of magnetism in the classic multiferroic heterostructures and clarify the various mechanisms lying behind them.The second part focuses on the novel technique of electric double layer gating for driving a significant electronic phase transition in magnetic oxides by a small voltage.In the third part,electric field applied on ordinary dielectric oxide is used to control the magnetic phenomenon originating from charge transfer and orbital reconstruction at the interface between dissimilar correlated oxides.At the end,we analyze the challenges in electrical control of magnetism in oxides,both the mechanisms and practical applications,which will inspire more in-depth research and advance the development in this field. 展开更多
关键词 electrical control of magnetism OXIDE magnetoelectric coupling HETEROSTRUCTURE
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Designing and characteristics analysis of electric suspensions with symmetrically arranged two slider-rods
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作者 WANG Guo-sheng LEI Qiang-shun +1 位作者 SONG Hui-xin JIN Hao-long 《Journal of Beijing Institute of Technology》 EI CAS 2016年第3期309-315,共7页
An innovative design of electric suspensions was developed in this study to help realize slow active suspension easily and quickly.This design was driven by screw through double slider-rod arranged symmetrically as a ... An innovative design of electric suspensions was developed in this study to help realize slow active suspension easily and quickly.This design was driven by screw through double slider-rod arranged symmetrically as a substitute for two springs.Based on a mathematical modeling,suspension parameters were introduced for a certain type of wheeled vehicles.The functions and its mechanism in regulating terrain clearance and adjusting attitudes were subsequently explained respectively,together with its semi-active control mechanism and characteristics In conclusion,our data in the study show that the new mechanical design of suspensions not only could realize adjusting terrain clearance and static vehicle pose,but also had an ideal stiffness that could realize a semi-active suspension function through adjusting suspension's stiffness.Therefore it can bequite suitable for off-road wheeled vehicles and military wheeled vehicles. 展开更多
关键词 suspension mechanism slider-link arranged symmetrically adjustable stiffness electric control semi-active suspension low active control
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Capillary Electrophoretic Separation of Proteins under the Control of Radial Electric Field
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作者 Yi CHEN Ying ZHU(Center for Molecular Sciences. Institute of Chemistry.Chinese Academy of Sciences. Beijing 100080) 《Chinese Chemical Letters》 SCIE CAS CSCD 1999年第9期777-780,共4页
Separation of basic proteins was performed using a homemade field-modulated capillary electrophoresis system. The resolution. elution and even wall adsorption can be regulated by ad-lusting the radial rather than axia... Separation of basic proteins was performed using a homemade field-modulated capillary electrophoresis system. The resolution. elution and even wall adsorption can be regulated by ad-lusting the radial rather than axial voltage applied. Selection of running buffer and pH was found to be critical. 展开更多
关键词 capillary electrophoresis protein separation radial electric field control
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Photo-Doped Active Electrically Controlled Terahertz Modulator
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作者 Bo Zhang Liang Zhong +1 位作者 Ting He Jing-Ling Shen 《Journal of Electronic Science and Technology》 CAS CSCD 2015年第2期113-116,共4页
We demonstrate an electric-controlled terahertz(THz) modulator which can be used to realize amplitude modulation of terahertz waves with slight photo-doping. The THz pulse transmission was efficiently modulated by e... We demonstrate an electric-controlled terahertz(THz) modulator which can be used to realize amplitude modulation of terahertz waves with slight photo-doping. The THz pulse transmission was efficiently modulated by electrically controlling the monolayer silicon-based device. The modulation depth reached 100% almost when the applied voltage was 7V at an external laser intensity of 0.6W/cm2. The saturation voltage reduced with the increase of the photo-excited intensity. In a THz continuous wave(CW)system, a significant fall in both THz transmission and reflection was also observed with the increase of applied voltage. This reduction in the THz transmission and reflection was induced by the absorption for electron injection. The results show that a high-efficiency and high modulation depth broadband electric-controlled terahertz modulator in a pure Si structure has been realized. 展开更多
关键词 modulator terahertz saturation electrically doping modulated Controlled excited monolayer tunable
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The Research and Application of the Anti-Interference Techniques of Electronic Device in Power System 被引量:1
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作者 吴维宁 张文亮 +1 位作者 吴峡 李建建 《Electricity》 2001年第4期40-43,共4页
This paper presents the study and application of the electronic device anti-interference techniques underhigh voltage and/or heavy current electro-magnetic circumstance in power system.[
关键词 electric power system electronic measurement and/or control device anti-interference measures
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Distributed Model Predictive Load Frequency Control of Multi-area Power System with DFIGs 被引量:17
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作者 Yi Zhang Xiangjie Liu Bin Qu 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2017年第1期125-135,共11页
Reliable load frequency control LFC is crucial to the operation and design of modern electric power systems. Considering the LFC problem of a four-Area interconnected power system with wind turbines, this paper presen... Reliable load frequency control LFC is crucial to the operation and design of modern electric power systems. Considering the LFC problem of a four-Area interconnected power system with wind turbines, this paper presents a distributed model predictive control DMPC based on coordination scheme. The proposed algorithm solves a series of local optimization problems to minimize a performance objective for each control area. The generation rate constraints GRCs, load disturbance changes, and the wind speed constraints are considered. Furthermore, the DMPC algorithm may reduce the impact of the randomness and intermittence of wind turbine effectively. A performance comparison between the proposed controller with and without the participation of the wind turbines is carried out. Analysis and simulation results show possible improvements on closed-loop performance, and computational burden with the physical constraints. © 2014 Chinese Association of Automation. 展开更多
关键词 Asynchronous generators electric control equipment electric fault currents electric frequency control electric load management electric power systems Model predictive control Optimization Press load control WIND Wind turbines
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Effects of radiation upon gastrointestinal motility 被引量:3
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作者 Mary F Otterson 《World Journal of Gastroenterology》 SCIE CAS CSCD 2007年第19期2684-2692,共9页
Whether due to therapeutic or belligerent exposure, the gastrointestinal effects of irradiation produce symptoms dreaded by a majority of the population. Nausea, vomiting, diarrhea and abdominal cramping are hallmarks... Whether due to therapeutic or belligerent exposure, the gastrointestinal effects of irradiation produce symptoms dreaded by a majority of the population. Nausea, vomiting, diarrhea and abdominal cramping are hallmarks of the prodromal phase of radiation sickness, occurring hours to days following radiation exposure. The prodromal phase is distinct from acute radiation sickness in that the absorptive, secretory and anatomic changes associated with radiation damage are not easily identifi able. It is during this phase of radiation sickness that gastrointestinal motility significantly changes. In addition, there is evidence that motor activity of the gut contributes to some of the acute and chronic effects of radiation. 展开更多
关键词 electrical control activity Retrograde giant contraction Giant migrating contraction Migrating motor Complex Radiation therapy
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High-Speed EMU TCMS Design and LCC Technology Research 被引量:2
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作者 Hongwei Zhao Zhiping Huang Ying Mei 《Engineering》 SCIE EI 2017年第1期122-129,共8页
This paper introduces the high-speed electrical multiple unit (EMO) life cycle, including the design, manufacturing, testing, and maintenance stages. It also presents the train control and monitoring system (TCMS)... This paper introduces the high-speed electrical multiple unit (EMO) life cycle, including the design, manufacturing, testing, and maintenance stages. It also presents the train control and monitoring system (TCMS) software development platform, the TCMS testing and verification bench, the EMU driving simulation platform, and the EMU remote data transmittal and maintenance platform. All these platforms and benches combined together make up the EMU life cycle cost (LCC) system. Each platform facilitates EMU LCC management and is an important part of the system. 展开更多
关键词 electrical multiple unit Train control and monitoring system Train communication network Life cycle cost Development platform Testing bench Simulation Remote data transmittal
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RULED SURFACE MACHINING BY 4-AXES SIMULTANEOUS CONTROL WIRE-EDM 被引量:1
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作者 Liu Zhengxun Zhao Yongshun Ni Zewang(Nanjing University of Aeronautics and Astrcnautics) 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 1995年第4期291-297,共17页
On the tasis of study in the mathematical model of 3-dimensional ruled surface (RS),this paper introduces a new concept of distance paramcter (DP) and also puts forward that themethod of modeling a RS depends on not o... On the tasis of study in the mathematical model of 3-dimensional ruled surface (RS),this paper introduces a new concept of distance paramcter (DP) and also puts forward that themethod of modeling a RS depends on not only two boundary curves but also DP. According toabove theory, the formulas to calculate corresponding point coordinates to any kind of top and bot-tom profile of a workpiece and formulas to calcuate the maximum inclination angle of ruling linehave been obtained. Then a different top and bottom RS mathining method including profile withline-are combination as well as parametric curves has been achieved by 4-axes simultancous con-trol programming proposed. 展开更多
关键词 axes simultaneous control Ruled surface Wire cutting electric discharge ma-chining
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Stacking order modulated anomalous valley Hall effect in antiferromagnetic MXene
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作者 Tong Zhao Shucheng Xing +2 位作者 Jian Zhou Naihua Miao Zhimei Sun 《Journal of Materiomics》 SCIE CSCD 2024年第1期269-276,共8页
The valley index is a promising degree of freedom for information processing in electronic devices.However,the researches on valley polarization are mainly focused on ferromagnetic order,which breaks the time reversal... The valley index is a promising degree of freedom for information processing in electronic devices.However,the researches on valley polarization are mainly focused on ferromagnetic order,which breaks the time reversal symmetry simultaneously.Here,a novel paradigm for achieving stacking order modulated anomalous valley Hall(AVH)effect is proposed in antiferromagnetic monolayers.The paradigm involves the introduction and reversal of nonuniform potentials by modulating the position of substrate,to break the combined symmetry of spatial inversion and time reversal(PT symmetry)and achieve stacking-dependent valley spin splitting.Based on first-principles calculations,we discover spontaneous valley polarization in antiferromagnetic Cr_(2)CH_(2) MXene and stacking-dependent valley spin splitting in Cr_(2)CH_(2)/Sc_(2)CO_(2) heterostructure.Furthermore,switching the ferroelectric polarization of monolayer Sc_(2)CO_(2) results in a semiconductor-metal transition in Cr_(2)CH_(2)/Sc_(2)CO_(2),accompanied by the disappearance of valley physics.Our findings provide an alternative way to develop controllable valleytronics devices based on antiferromagnetic monolayers. 展开更多
关键词 Stacking order ANTIFERROMAGNETISM AVH effect electrical control
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