SUPEREXCHANGE

作品数：11被引量：9H指数：2
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Superexchange and charge transfer in the nickelate superconductor La_(3)Ni_(2)O_(7) under pressure被引量：1
《Science China(Physics,Mechanics & Astronomy)》2024年第11期1-8,共8页Wéi Wú Zhihui Luo Dao-Xin Yao Meng Wang 
supported by the National Natural Science Foundation of China (Grant Nos. 12274472, 92165204, 12174454, and 11974432);the National Key Research and Development Program of China (Grant Nos. 2022YFA1402802, and 2018YFA0306001);the Guangdong Basic and Applied Basic Research Foundation (Grant Nos. 2022A1515011618, and 2021B1515120015);the Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices (Grant No. 2022B1212010008);the Shenzhen International Quantum Academy (Grant No. SIQA202102);the Leading Talent Program of Guangdong Special Projects (Grant No. 201626003);the support from GuangZhou National Supercomputing Center (Tianhe-Ⅱ)。
Recently, a bulk nickelate superconductor La_(3)Ni_(2)O_(7) is discovered at pressures with a remarkable high transition temperature T_(c)~ 80 K. Here, we study a Hubbard model with tight-binding parameters derived fr...
关键词：superconductivity nickelate superconductors Hubbard model SUPEREXCHANGE charge transfer insulator quantum Monte Carlo 
Li_(2)NiSe_(2):A new-type intrinsic two-dimensional ferromagnetic semiconductor above 200 K
《Chinese Physics B》2023年第3期502-508,共7页肖丽蔓 杨焕成 卢仲毅 
the National Key Research and Development Program of China(Grant No.2019YFA0308603);the National Natural Science Foundation of China(Grant No.11934020).
By using first-principles electronic structure calculations,we propose a two-dimensional ferromagnetic semiconductor Li_(2)NiSe_(2)with a Curie temperature above 200 K.The structure of monolayer Li_(2)NiSe_(2)is dynam...
关键词：two-dimensional ferromagnetic semiconductor ferromagnetic superexchange first-principles calculations 
Mossbauer and magnetization studies of magnetic phase transitions in 0.5BiFeO_(3)-0.5NaNbO_(3)and 0.5LaFeO_(3)-0.5NaNbO_(3)solid solutions
《Journal of Advanced Dielectrics》2020年第1期28-33,共6页S.I.Raevskaya S.P.Kubrin Jian Zhuang I.P.Raevski M.A.Malitskaya I.N.Zakharchenko M.S.Panchelyuga V.V.Titov 
This work was supported by RFBR and NSFC,project 19-52-53030 GFEN a and by the Ministry of Education and Science of the Russian Federation(State assignment in the field of scientific activity,Southern Federal University,2020).
0.5AFeO_(3)-0.5NaNbO_(3)(A=Bi,La)solid solution compositions were prepared using a solid phase reaction route from high-purity starting oxides.Mossbauer studies have shown that while for 0.5BiFeO_(3)-0.5NaNbO_(3)the m...
关键词：MULTIFERROIC magnetic phase transition BiFeO_(3) magnetic superexchange 
Magnetic properties of M-type strontium ferrites with different heat treatment conditions被引量：2
《Rare Metals》2020年第1期84-88,共5页Namji Oh Seungyeon Park Yongwan Kim Hyukmin Kwon Sangsub Kim Kyoungmook Lim 
The effects of heat treatment conditions on the magnetic properties and microstructure of M-type strontium ferrite according to calcination temperature were analyzed.Strontium ferrite Sr0.06Ca0.52La0.52Fe11.68Co0.22O1...
关键词：M-type ferrites Standard CERAMIC process Phase analysis SUPEREXCHANGE PERMANENT MAGNET 
Stability of the Fe12O12 cluster
《Nano Research》2018年第7期3574-3581,共8页Xiaohu Yu Xuemei Zhang Xun-Wang Yan 
This work was supported by the National Natural Science Foundation of China （No. 11474004）, the National Science Foundation of Henan Province （No. 162300410001） and the Natural Science Foundation of Shaanxi University of Technology （No. SLGQD2017-13）.
Superexchange effects play an important role in the determination of crystal structures; however, there has been much less reported on how they determine the stability of dusters. Using evolutionary search strategies ...
关键词：Fe12O12 evolutionary program superexchange effect DFT＋U Heisenberg model 
Superexchange-mediated magnetization dynamics with ultracold alkaline-earth atoms in an optical lattice
《Chinese Physics B》2017年第4期344-350,共7页朱少兵 钱军 王育竹 
Project supported by the National Key Research and Development Program of China(Grant No.2016YFA0301504)
Superexchange and inter-orbital spin-exchange interactions are key ingredients for understanding（orbital） quantum magnetism in strongly correlated systems and have been realized in ultracold atomic gases.Here we stu...
关键词：alkaline-earth atoms spin dynamics SPIN-EXCHANGE SUPEREXCHANGE 
Identifying the genes of unconventional high temperature superconductors被引量：5
《Science Bulletin》2016年第7期561-569,共9页Jiangping Hu 
supported by the National Basic Research Program of China;National Natural Science Foundation of China;the Strategic Priority Research Program of Chinese Academy of Sciences
We elucidate a recently emergent framework in unifying the two families of high temperature （high To） superconductors, cuprates and iron-based superconductors. The unification suggests that the latter is simply the ...
关键词：CUPRATES Iron-based superconductors Unconventional high Tc superconducotors SUPEREXCHANGE 
Room-Temperature Magnetism of Ceria Nanocubes by Inductively Transferring Electrons to Ce Atoms from Nearby Oxygen Vacancy被引量：1
《Nano-Micro Letters》2016年第1期13-19,共7页Yue Kang Qiang Leng Donglin Guo Dezhi Yang Yanping Pu Chenguo Hu 
supported by the National High Technology Research and Development Program(863 program)of China(2015AA034801);NSFC(11204388;51402112);the Fundamental Research Funds for the Central Universities(CQDXWL-2014-001 and CQDXWL-2013-012);the large-scale equipment sharing fund of Chongqing University
Ceria(CeO_2) nanocubes were synthesized by a hydrothermal method and weak ferromagnetism was observed in room temperature. After ultraviolet irradiation, the saturation magnetization was significantly enhanced from*3...
关键词：UV irradiation Oxygen VACANCIES Saturation MAGNETISM Spin direction SUPEREXCHANGE interaction 
Investigation of Possible Half-Metallic Antiferromagnets on Double Perovskites A_(2)BB′O_(6)(A=Ca,Sr Ba;B,B′=Transition Metal Elements)
《Communications in Computational Physics》2013年第2期526-539,共14页S.H.Chen Z.R.Xiao Y.P.Liu Y.K.Wang 
supports received from the National Science Council(99B0320);the National Center for Theoretical Sciences(NCTS),South Taiwan.
A search was made for possible half-metallic(HM)antiferromagnet(AFM)in all the(C_(2)^(92)=406)double perovskites structures of Sr2BB′O6 where BB′pairs are any combination of 3d,4d or 5d transition elements with the ...
关键词：Half-metal antiferromagnet GGA+U SUPEREXCHANGE generalized double exchange 
Superexchange interaction enhancement of the quantum transport in a DNA-type molecule
《Chinese Physics B》2011年第11期427-432,共6页王瑞 张存喜 周运清 孔令民 
supported by the Natural Science Foundation of Zhejiang Province,China(Grant Nos.Y6110250 and Y201018926)
We use the transfer matrix method and the Green function technique to theoretically study the quantum tunnelling through a DNA-type molecule. Ferromagnetic electrodes are used to produce the spin-polarized transmissio...
关键词：quantum transport DNA SUPEREXCHANGE 
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