It is still a formidable challenge to simultaneously switch single-chain magnet(SCM)behavior via ligand modification and light irradiation in the field of molecular spintronics.Herein,we present a ligandbridged layer{...It is still a formidable challenge to simultaneously switch single-chain magnet(SCM)behavior via ligand modification and light irradiation in the field of molecular spintronics.Herein,we present a ligandbridged layer{[pzTpFe(CN)3]4Co2(Bib)4}·3H2O(1;pzTp,tetra-kis(1-pyrazolyl)borate;Bib,1,4-bis-(1Himidazol-1-yl)benzene)and a well-isolated double chain{[pzTpFe(CN)3]2Co(Bpi)2}·CH3CN·4H2O(2;Bpi,1-Biphenyl-4-yl-1H-imidazole)that display reversible metal-to-metal charge transfer(MMCT)between FeIII LS(μ-CN)CoII HS(μ-NC)FeIII LS(LS,low spin;HS,high spin)and FeIII LS(μ-CN)CoIII LS(μ-NC)FeII LS linkages under alternating irradiation with 808 and 532 nm lasers.The bidirectional light irradiations induces significant changes in anisotropy and intrachain magnetic interactions,resulting in the on/off switching of SCM behavior with observable hysteresis loops by 808 and 532 nm light irradiations for both compounds.Because of the ligand modification,the SCM property of 2 with the monodentate ligand is greatly improved with a correlation length increased to 83,which is the largest correlation length among all reported light actuated SCMs.Furthermore,the influence of ligand modification on their thermally induced MMCT is also discussed.This study provides a rational approach for the swift and reversible control of SCM behavior via ligand modified and light induced MMCT,which is crucial to the future technological demand for high-density data storage and processing.展开更多
In this work, BaWO4 nanospheres were successfully prepared by hydrothermal process. The bipolar resistive switching behavior of Ag/BaWO4/FTO device is observed. Moreover, this resistive switching behavior can be modul...In this work, BaWO4 nanospheres were successfully prepared by hydrothermal process. The bipolar resistive switching behavior of Ag/BaWO4/FTO device is observed. Moreover, this resistive switching behavior can be modulated by white light. The device can maintain superior stability in the dark and under white-light illumination. This study is useful for developing the light-controlled nonvolatile memory devices.展开更多
Atom–nanowire coupling system is a promising platform for optical quantum information processing. Unlike the previous designing of optical switch and transistor requiring a dedicated multi-level emitter and high fine...Atom–nanowire coupling system is a promising platform for optical quantum information processing. Unlike the previous designing of optical switch and transistor requiring a dedicated multi-level emitter and high fineness microcavity,a new proposal is put forward which contains a single two-level atom asymmetrically coupled with two nanowires. Singleemitter manipulation of photonic signals for bilateral coherent incident is clear now, since we specify atomic saturation nonlinearity into three contributions which brings us a new approach to realizing light-controlled-light at weak light and single-atom levels. An efficient optically controllable switch based on self-matching-induced-block and a concise optical transistor are proposed. Our findings show potential applications in full-optical devices.展开更多
A hybrid switching node structure with light and microwave links is proposed, which is applicable to the future data relay satellite systems, aiming at the development trend of coexistence of light- link and microwave...A hybrid switching node structure with light and microwave links is proposed, which is applicable to the future data relay satellite systems, aiming at the development trend of coexistence of light- link and microwave-link in the future. An experimental system for the light and microwave hybrid switching node based on wavelength selective optical switches (WSS) and optical transceiver modules, is established. It is shown by our experiment that this hybrid switching node can realize the dynamic bandwidth allocation and wavelength routing while the bit error rate of light link is less than 10?12, which provides a method for solving the hybrid switching problem of light-link and microwave-link on the future data relay satellite systems.展开更多
Starting from the Rayleigh-Sommerfeld diffraction integral, this paper studies the spectral behavior in Young＇s experiment illuminated by nonparaxial partially coherent light and compares with the paraxial case, wher...Starting from the Rayleigh-Sommerfeld diffraction integral, this paper studies the spectral behavior in Young＇s experiment illuminated by nonparaxial partially coherent light and compares with the paraxial case, where the influence of nonparaxiality of partially coherent light on the spectral shifts and spectral switches is stressed. It is shown that there is a spectral shift in the nonparaxial case relative to the paraxial one and the critical position changes, at which the spectral switch occurs. The ratio of the waist width to the central wavelength ω0/λ0 and relative spatial correlation length △ affect the spectral difference. The smaller ω0/λ0 is, the larger the difference between the nonparaxial and paraxial results appears. The effect of relative spatial correlation length △ is relatively small.展开更多
基金supported by the National Natural Science Foundation of China(grant nos.21901133,22171155,22035003,91856124,22025101,91961114,21871039,and 22173015)China National Postdoctoral Program for Innovative Talents(grant no.BX20180147).
文摘It is still a formidable challenge to simultaneously switch single-chain magnet(SCM)behavior via ligand modification and light irradiation in the field of molecular spintronics.Herein,we present a ligandbridged layer{[pzTpFe(CN)3]4Co2(Bib)4}·3H2O(1;pzTp,tetra-kis(1-pyrazolyl)borate;Bib,1,4-bis-(1Himidazol-1-yl)benzene)and a well-isolated double chain{[pzTpFe(CN)3]2Co(Bpi)2}·CH3CN·4H2O(2;Bpi,1-Biphenyl-4-yl-1H-imidazole)that display reversible metal-to-metal charge transfer(MMCT)between FeIII LS(μ-CN)CoII HS(μ-NC)FeIII LS(LS,low spin;HS,high spin)and FeIII LS(μ-CN)CoIII LS(μ-NC)FeII LS linkages under alternating irradiation with 808 and 532 nm lasers.The bidirectional light irradiations induces significant changes in anisotropy and intrachain magnetic interactions,resulting in the on/off switching of SCM behavior with observable hysteresis loops by 808 and 532 nm light irradiations for both compounds.Because of the ligand modification,the SCM property of 2 with the monodentate ligand is greatly improved with a correlation length increased to 83,which is the largest correlation length among all reported light actuated SCMs.Furthermore,the influence of ligand modification on their thermally induced MMCT is also discussed.This study provides a rational approach for the swift and reversible control of SCM behavior via ligand modified and light induced MMCT,which is crucial to the future technological demand for high-density data storage and processing.
基金supported by the National Nature Science Foundation of China (Grant No. 51372209)
文摘In this work, BaWO4 nanospheres were successfully prepared by hydrothermal process. The bipolar resistive switching behavior of Ag/BaWO4/FTO device is observed. Moreover, this resistive switching behavior can be modulated by white light. The device can maintain superior stability in the dark and under white-light illumination. This study is useful for developing the light-controlled nonvolatile memory devices.
基金Project supported by the National Natural Science Foundation of China(Grant Nos.11864018 and 11574229)the Scientific Research Foundation of Education Department of Jiangxi Province,China(Grant No.GJJ170645)the Doctor Startup Fund of the Natural Science of Jinggangshan University,China(Grant No.JZB16003)
文摘Atom–nanowire coupling system is a promising platform for optical quantum information processing. Unlike the previous designing of optical switch and transistor requiring a dedicated multi-level emitter and high fineness microcavity,a new proposal is put forward which contains a single two-level atom asymmetrically coupled with two nanowires. Singleemitter manipulation of photonic signals for bilateral coherent incident is clear now, since we specify atomic saturation nonlinearity into three contributions which brings us a new approach to realizing light-controlled-light at weak light and single-atom levels. An efficient optically controllable switch based on self-matching-induced-block and a concise optical transistor are proposed. Our findings show potential applications in full-optical devices.
文摘A hybrid switching node structure with light and microwave links is proposed, which is applicable to the future data relay satellite systems, aiming at the development trend of coexistence of light- link and microwave-link in the future. An experimental system for the light and microwave hybrid switching node based on wavelength selective optical switches (WSS) and optical transceiver modules, is established. It is shown by our experiment that this hybrid switching node can realize the dynamic bandwidth allocation and wavelength routing while the bit error rate of light link is less than 10?12, which provides a method for solving the hybrid switching problem of light-link and microwave-link on the future data relay satellite systems.
基金suported by the National Natural Science Foundation of China (Grant No 10574097)the Outstanding Young Researcher Foundation of Sichuan Province,China (Grant No 03ZQ026-061)+1 种基金the Applied and Basic Research Foundation of Sichuan Province,China (Grant No 05J Y029-102)the Natural Science Foundation of Yibin University,China (Grant No 2008B04)
文摘Starting from the Rayleigh-Sommerfeld diffraction integral, this paper studies the spectral behavior in Young＇s experiment illuminated by nonparaxial partially coherent light and compares with the paraxial case, where the influence of nonparaxiality of partially coherent light on the spectral shifts and spectral switches is stressed. It is shown that there is a spectral shift in the nonparaxial case relative to the paraxial one and the critical position changes, at which the spectral switch occurs. The ratio of the waist width to the central wavelength ω0/λ0 and relative spatial correlation length △ affect the spectral difference. The smaller ω0/λ0 is, the larger the difference between the nonparaxial and paraxial results appears. The effect of relative spatial correlation length △ is relatively small.
