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...
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...
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...
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 ...
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...
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...
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...
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 ...
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...
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...