Pub Date : 2024-03-28DOI: 10.1103/physrevb.109.125149
N. Srivatsa, C. von Keyserlingk
{"title":"Operator growth hypothesis in open quantum systems","authors":"N. Srivatsa, C. von Keyserlingk","doi":"10.1103/physrevb.109.125149","DOIUrl":"https://doi.org/10.1103/physrevb.109.125149","url":null,"abstract":"","PeriodicalId":48701,"journal":{"name":"Physical Review B","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140371486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Materials with ferroelectrically switchable topological properties are of interest for both fundamental physics and practical applications. Using first-principles calculations, we find that stacking ferroelectric $alpha$-In$_2$Se$_3$ monolayers into a bilayer leads to polarization-dependent band structures, which yields polarization-dependent topological properties. Specifically, we find that the states with interlayer ferroelectric couplings are quantum spin Hall insulators, while those with antiferroelectric polarizations are normal insulators. We further find that In$_2$Se$_3$ trilayer and quadlayer exhibit nontrivial band topology as long as in the structure the ferroelectric In$_2$Se$_3$ bilayer is antiferroelectrically coupled to In$_2$Se$_3$ monolayers or other ferroelectric In$_2$Se$_3$ bilayer. Otherwise the system is topologically trivial. The reason is that near the Fermi level the band structure of the ferroelectric In$_2$Se$_3$ bilayer has to be maintained for the nontrivial band topology. This feature can be used to design nontrivial band topology for the thicker films by a proper combination of the interlayer polarization couplings. The topological properties can be ferroelectrically tunable using the dipole locking effect. Our study reveals switchable band topology in a family of natural ferroelectrics, which provide a platform for designing new functional devices.
{"title":"Ferroelectrically tunable topological phase transition in In2Se3 thin films","authors":"Zhiqiang Tian, Ziming Zhu, Jiang Zeng, Chao-Fei Liu, Yurong Yang, Anlian Pan, Mingxing Chen","doi":"10.1103/PhysRevB.109.085432","DOIUrl":"https://doi.org/10.1103/PhysRevB.109.085432","url":null,"abstract":"Materials with ferroelectrically switchable topological properties are of interest for both fundamental physics and practical applications. Using first-principles calculations, we find that stacking ferroelectric $alpha$-In$_2$Se$_3$ monolayers into a bilayer leads to polarization-dependent band structures, which yields polarization-dependent topological properties. Specifically, we find that the states with interlayer ferroelectric couplings are quantum spin Hall insulators, while those with antiferroelectric polarizations are normal insulators. We further find that In$_2$Se$_3$ trilayer and quadlayer exhibit nontrivial band topology as long as in the structure the ferroelectric In$_2$Se$_3$ bilayer is antiferroelectrically coupled to In$_2$Se$_3$ monolayers or other ferroelectric In$_2$Se$_3$ bilayer. Otherwise the system is topologically trivial. The reason is that near the Fermi level the band structure of the ferroelectric In$_2$Se$_3$ bilayer has to be maintained for the nontrivial band topology. This feature can be used to design nontrivial band topology for the thicker films by a proper combination of the interlayer polarization couplings. The topological properties can be ferroelectrically tunable using the dipole locking effect. Our study reveals switchable band topology in a family of natural ferroelectrics, which provide a platform for designing new functional devices.","PeriodicalId":48701,"journal":{"name":"Physical Review B","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140429731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-16DOI: 10.1103/physrevb.109.064308
B. Real, Diego Guzmán-Silva, R. Vicencio
{"title":"Radiation-based wave-packet generator in one-dimensional lattices","authors":"B. Real, Diego Guzmán-Silva, R. Vicencio","doi":"10.1103/physrevb.109.064308","DOIUrl":"https://doi.org/10.1103/physrevb.109.064308","url":null,"abstract":"","PeriodicalId":48701,"journal":{"name":"Physical Review B","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139960320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-04DOI: 10.1103/physrevb.108.245106
Basudeb Mondal, Vijay B. Shenoy, S. Bhattacharjee
{"title":"Emergent SU(8) Dirac semimetal and proximate phases of spin-orbit coupled fermions on a honeycomb lattice","authors":"Basudeb Mondal, Vijay B. Shenoy, S. Bhattacharjee","doi":"10.1103/physrevb.108.245106","DOIUrl":"https://doi.org/10.1103/physrevb.108.245106","url":null,"abstract":"","PeriodicalId":48701,"journal":{"name":"Physical Review B","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138603936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-04DOI: 10.1103/physrevb.108.239901
Xu-Yang Hou, Xin Wang, Zheng Zhou, Hao Guo, C. Chien
{"title":"Erratum: Geometric phases of mixed quantum states: A comparative study of interferometric and Uhlmann phases [Phys. Rev. B \u0000107\u0000, 165415 (2023)]","authors":"Xu-Yang Hou, Xin Wang, Zheng Zhou, Hao Guo, C. Chien","doi":"10.1103/physrevb.108.239901","DOIUrl":"https://doi.org/10.1103/physrevb.108.239901","url":null,"abstract":"","PeriodicalId":48701,"journal":{"name":"Physical Review B","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138603140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-04DOI: 10.1103/physrevb.108.245302
Samuel M. Wink, Egor A. Muljarov, W. Langbein, Hai-Yao Deng
{"title":"Surface scattering amplitude for a spatially dispersive model dielectric","authors":"Samuel M. Wink, Egor A. Muljarov, W. Langbein, Hai-Yao Deng","doi":"10.1103/physrevb.108.245302","DOIUrl":"https://doi.org/10.1103/physrevb.108.245302","url":null,"abstract":"","PeriodicalId":48701,"journal":{"name":"Physical Review B","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138602111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-04DOI: 10.1103/physrevb.108.235404
Li-Li Ye, Chen-Di Han, Ying-Cheng Lai
{"title":"Spin-dependent edge states in two-dimensional Dirac materials with a flat band","authors":"Li-Li Ye, Chen-Di Han, Ying-Cheng Lai","doi":"10.1103/physrevb.108.235404","DOIUrl":"https://doi.org/10.1103/physrevb.108.235404","url":null,"abstract":"","PeriodicalId":48701,"journal":{"name":"Physical Review B","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138603076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-08DOI: 10.1103/physrevb.108.104502
Junjie Li, Ali C. Basaran, Ralph El Hage, Ivan K. Schuller
{"title":"Enhancement of superconducting transition temperature in Nb/Pd bilayers upon rapid thermal hydrogenation","authors":"Junjie Li, Ali C. Basaran, Ralph El Hage, Ivan K. Schuller","doi":"10.1103/physrevb.108.104502","DOIUrl":"https://doi.org/10.1103/physrevb.108.104502","url":null,"abstract":"","PeriodicalId":48701,"journal":{"name":"Physical Review B","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2023-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42385644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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