INSULATOR

作品数:384被引量:419H指数:9
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相关领域:电子电信理学更多>>
相关作者:潘海林袁望治阮建中程金科何家康更多>>
相关机构:中国科学院华东师范大学清华大学中国科学技术大学更多>>
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相关基金:国家自然科学基金国家重点基础研究发展计划中国博士后科学基金国家高技术研究发展计划更多>>
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Hidden magnetism and split off flat bands in the insulator metal transition in VO_(2)
《npj Computational Materials》2024年第1期949-956,共8页Xiuwen Zhang Jia-Xin Xiong Alex Zunger 
The work on structural symmetry breaking and polymorphous spin special quasirandom structure calculations was supported by the U.S.National Science Foundation DMREF programthrough Grant No.DMREF-1921949;This work used resources of Stampede2 system at Texas Advanced Computing Center through allocation PHY180030 from the Advanced Cyberinfrastructure Coordination Ecosystem:Services&Support(ACCESS)program,which is supported by National Science Foundation grants#2138259,#2138286,#2138307,#2137603,and#2138296;The nudged elastic band simulation of the insulator-metal transition trajectory in this work were supported by the U.S.Department of Energy,Office of Science,Basic Energy Sciences,Materials Sciences and Engineering Division under Award#DE-SC0010467;This work also used resources from the National Energy Research Scientific Computing Center,which was supported by the Office of Science of the U.S.Department of Energy.
Transition metal d-electron oxides with an odd number of electrons per unit cell are expected to form metals with partially occupied energy bands,but exhibit in fact a range of behaviors,being either insulators,or met...
关键词:BANDS INSULATOR instead 
Antiferromagnetic second-order topological insulator with fractional mass-kink被引量:1
《npj Computational Materials》2022年第1期788-794,共7页Haimen Mu Gan Zhao Huimin Zhang Zhengfei Wang 
This work was supported by NSFC(Grant No.12174369,11774325,and 21603210);National Key Research and Development Program of China(Grant No.2017YFA0204904);Fundamental Research Funds for the Central Universities.
Generally,the topological corner state in two-dimensional(2D)second-order topological insulator(SOTI)is equivalent to the well-known domain wall state,which is originated from the mass-inversion between two adjacent e...
关键词:TOPOLOGICAL FRACTIONAL INSULATOR 
Third-order topological insulators with wallpaper fermions in Tl_(4)PbTe_(3)and Tl_(4)SnTe_(3)
《npj Computational Materials》2022年第1期1461-1467,共7页Ning Mao Hao Wang Ying Dai Baibiao Huang Chengwang Niu 
This work was supported by the National Natural Science Foundation of China(Grants Nos.12174220,1904205 and 12074217);the Shandong Provincial Natural Science Foundation of China(Grants Nos.ZR2019QA019 and ZR2019MEM013);the Shandong Provincial Key Research and Development Program(Major Scientific and Technological Innovation Project)(Grant No.2019JZZY010302);the Qilu Young Scholar Program of Shandong University.
Nonsymmorphic symmetries open up horizons of exotic topological boundary states and even generalize the bulk–boundary correspondence,which,however,the third-order topological insulator in electronic materials are sti...
关键词:TOPOLOGICAL INSULATOR boundary 
Anti-Jahn-Teller effect induced ultrafast insulator to metal transition in perovskite BaBiO_(3)
《npj Computational Materials》2022年第1期2148-2154,共7页Nan Feng Jian Han Changpeng Lin Zhengwei Ai Chuwen Lan Ke Bi Yuanhua Lin Kan-Hao Xue Ben Xu 
This work was supported by the Fundamental Research Funds for the Central Universities(grant no.2021XD-A06-1);National Natural Science Foundation of China(grant nos.51790494,12088101,52072209,51972033,and U2241243);Beijing Natural Science Foundation(grant No.JQ22010).
The Jahn-Teller(JT)effect involves the ions M with a degenerate electronic state distorting the corner-sharing MO_(6)octahedra to lift the degeneracy,inducing strong coupling of electrons to lattice,and mediating the ...
关键词:tuning effect ILLUMINATION 
Discovery of higher-order topological insulators using the spin Hall conductivity as a topology signature
《npj Computational Materials》2021年第1期457-462,共6页Marcio Costa Gabriel R.Schleder Carlos Mera Acosta Antonio C.M.Padilha Frank Cerasoli Marco Buongiorno Nardelli Adalberto Fazzio 
M.C.,G.R.S.,C.M.A.,A.C.M.P.,and A.F.acknowledges financial support from the Fundação de AmparoàPesquisa do Estado de São Paulo(FAPESP),project numbers 16/14011-2,17/18139-6,18/11856-7,18/05565-0,17/02317-2.
The discovery and realization of topological insulators,a phase of matter which hosts metallic boundary states when the ddimension insulating bulk is confined to(d−1)-dimensions,led to several potential applications.R...
关键词:TOPOLOGICAL INSULATOR CONDUCTIVITY 
Tunable dynamical magnetoelectric effect in antiferromagnetic topological insulator MnBi_(2)Te_(4) films被引量:1
《npj Computational Materials》2021年第1期1101-1106,共6页Tongshuai Zhu Huaiqiang Wang Haijun Zhang Dingyu Xing 
H.Z.acknowledge Jing Wang for helpful discussions.This work is supported by the Fundamental Research Funds for the Central Universities(Grant No.020414380185);Natural Science Foundation of Jiangsu Province(No.BK20200007);the Natural Science Foundation of China(Grants No.12074181 and No.11834006);the Fok Ying-Tong Education Foundation of China(Grant No.161006).
Axion was postulated as an elementary particle to solve the strong charge conjugation and parity puzzle,and later axion was also considered to be a possible component of dark matter in the universe.However,the existen...
关键词:materials DYNAMICAL INSULATOR 
Glide symmetry protected higher-order topological insulators from semimetals with butterfly-like nodal lines
《npj Computational Materials》2021年第1期1871-1876,共6页Xiaoting Zhou Chuang-Han Hsu Cheng-Yi Huang Mikel Iraola Juan L.Mañes Maia G.Vergniory Hsin Lin Nicholas Kioussis 
The work at CSUN was supported by NSF-Partnership in Research and Education in Materials(PREM)Grant No.DMR-1828019;H.L.acknowledges the support by the Ministry of Science and Technology(MOST)in Taiwan under grant number MOST 109-2112-M-001-014-MY3;The work of J.L.M.has been supported by Spanish Science Ministry grant PGC2018-094626-B-C21(MCIU/AEI/FEDER,EU)and Basque Government grant IT979-16;M.G.V.thanks support from DFG INCIEN2019-000356 from Gipuzkoako Foru Aldundia;M.G.V.and M.I.acknowledges the Spanish Ministerio de Ciencia e Innovacion(grant number PID2019-109905GB-C21).
Most topological insulators(TIs)discovered today in spinful systems can be transformed from topological semimetals(TSMs)with vanishing bulk gap via introducing the spin-orbit coupling(SOC),which manifests the intrinsi...
关键词:topological protected INSULATOR 
Quantum anomalous Hall effect in two-dimensional magnetic insulator heterojunctions被引量:1
《npj Computational Materials》2020年第1期405-412,共8页Jinbo Pan Jiabin Yu Yan-Fang Zhang Shixuan Du Anderson Janotti Chao-Xing Liu Qimin Yan 
Department of Energy under Award#DESC0019275 for the design of data-driven discovery pipeline and the first-principles computational work;J.Y.and C.X.L.acknowledge the support of DOE grant(DESC0019064)for the analytical model and symmetry analysis,and the Office of Naval Research(Grant number N00014-18-1-2793);as well as Kaufman New Initiative research grant of the Pittsburgh Foundation.A.J.acknowledges support from U.S.DOE SE-SC0014388;S.X.D.thanks the International Partnership Program of Chinese Academy of Sciences,Grant number 112111KYSB20160061;It benefitted from the supercomputing resources of the National Energy Research Scientific Computing Center(NERSC),a U.S.Department of Energy Office of Science User Facility operated under Contract number DE-AC02-05CH11231.
Recent years have witnessed tremendous success in the discovery of topological states of matter.Particularly,sophisticated theoretical methods in time-reversal-invariant topological phases have been developed,leading ...
关键词:MAGNETIC ANOMALOUS effect 
Insulator-to-conductor transition driven by the Rashba–Zeeman effect
《npj Computational Materials》2020年第1期247-253,共7页Lingling Tao Evgeny Y.Tsymbal 
This research was supported by the National Science Foundation through the E2CDA program(grant ECCS-1740136)and the Semiconductor Research Corporation(SRC)through the nCORE program.
The Rashba effect has recently attracted great attention owing to emerging physical properties associated with it.The interplay between the Rashba effect and the Zeeman effect,being produced by the exchange field,is e...
关键词:EFFECT ZEEMAN conductor 
Understanding the metal-to-insulator transition in La_(1−x)Sr_(x)CoO_(3−δ) and its applications for neuromorphic computing被引量:1
《npj Computational Materials》2020年第1期261-269,共9页Shenli Zhang Giulia Galli 
This research was conducted as part of the Quantum Materials for Energy Efficient Neuromorphic Computing,an Energy Frontier Research Center funded by the US Department of Energy,Office of Science,Basic Energy Sciences under award DESC0019273.
Transition metal oxides that exhibit a metal-to-insulator transition(MIT)as a function of oxygen vacancy concentration are promising systems to realize energy-efficient platforms for neuromorphic computing.However,the...
关键词:TRANSITION INSULATOR hinder 
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