The wave functions,energy levels and matrix elements of Yb+ions are calculated using the relativistic configuration interaction plus core polarization(RCICP)method.The static and dynamic electric dipole polarizabiliti...The wave functions,energy levels and matrix elements of Yb+ions are calculated using the relativistic configuration interaction plus core polarization(RCICP)method.The static and dynamic electric dipole polarizabilities of the ground state and low-lying excited states are determined.Then,the magic wavelengths of the magnetic sublevel 6s_(1/2,m=1/2)→5d_(3/2,m=±3/2,±1/2)and 6s_(1/2,m=1/2)→5_(d5/2,m=±5/2,±3/2,±1/2)transitions in the linearly,right-handed,and left-handed polarized light are further determined.The dependence of the magic wavelengths upon the angle between the direction of magnetic field and the direction of laser polarization is analyzed.展开更多
High-performance ferroelectric materials are widely used in various electronic devices owing to the function of mutual conversion among different energies,which mainly relates to their special structure gene of polari...High-performance ferroelectric materials are widely used in various electronic devices owing to the function of mutual conversion among different energies,which mainly relates to their special structure gene of polarization configuration.Recent researches show that the high-entropy strategy has emerged as an effective and flexible approach for boosting physical properties in high-entropy ferroelectrics via the delicate design of local polarization configurations and other intrinsic effects caused by entropy increment,such as entropy stabilization,lattice disorder,inhibition of grain coarsening,improved mechanical properties,cocktail effect,and so on.In this review,the recent research progress about high-entropy ferroelectrics has been summarized,especially for the directional design of novel local polarization configurations according to the characteristics of different electrical properties such as high piezoelectricity,high-efficiency energy storage,and large electrostriction,providing a guidance for designing and exploring more novel local polarization configurations in high-entropy ferroelectrics for generating higher performance.展开更多
基金the National Key Research and Development Program of China(Grant No.2022YFA1602500)the National Natural Science Foundation of China(Grant Nos.12174316 and 12174268)+2 种基金the Young Teachers Scientific Research Ability Promotion Plan of Northwest Normal University(Grant No.NWNU-LKQN2020-10)the Innovative Fundamental Research Group Project of Gansu Province,China(Grant No.20JR5RA541)the Project of the Educational Commission of Guangdong Province of China(Grant No.2020KTSCX124)。
文摘The wave functions,energy levels and matrix elements of Yb+ions are calculated using the relativistic configuration interaction plus core polarization(RCICP)method.The static and dynamic electric dipole polarizabilities of the ground state and low-lying excited states are determined.Then,the magic wavelengths of the magnetic sublevel 6s_(1/2,m=1/2)→5d_(3/2,m=±3/2,±1/2)and 6s_(1/2,m=1/2)→5_(d5/2,m=±5/2,±3/2,±1/2)transitions in the linearly,right-handed,and left-handed polarized light are further determined.The dependence of the magic wavelengths upon the angle between the direction of magnetic field and the direction of laser polarization is analyzed.
基金National Key R&D Program of China,Grant/Award Number:2022YFB3204000National Natural Science Foundation of China,Grant/Award Numbers:21825102,22235002,22161142022Fundamental Research Funds for the Central Universities,Grant/Award Number:FRF-IDRY-21-002。
文摘High-performance ferroelectric materials are widely used in various electronic devices owing to the function of mutual conversion among different energies,which mainly relates to their special structure gene of polarization configuration.Recent researches show that the high-entropy strategy has emerged as an effective and flexible approach for boosting physical properties in high-entropy ferroelectrics via the delicate design of local polarization configurations and other intrinsic effects caused by entropy increment,such as entropy stabilization,lattice disorder,inhibition of grain coarsening,improved mechanical properties,cocktail effect,and so on.In this review,the recent research progress about high-entropy ferroelectrics has been summarized,especially for the directional design of novel local polarization configurations according to the characteristics of different electrical properties such as high piezoelectricity,high-efficiency energy storage,and large electrostriction,providing a guidance for designing and exploring more novel local polarization configurations in high-entropy ferroelectrics for generating higher performance.
