{"title":"理想 BHZ 模型的人工摩尔纹工程","authors":"Wangqian Miao, Arman Rashidi, Xi Dai","doi":"arxiv-2409.08540","DOIUrl":null,"url":null,"abstract":"We demonstrate that (001) grown Cd3As2 thin films with a\nsuperlattice-patterned gate can potentially realize the moir\\'e\nBernevig-Hughes-Zhang (BHZ) model. Our calculations identify the\nparameterization region necessary to achieve topological flat mini-bands with a\nC4z symmetric and a C6z symmetric potential. Additionally, we show that a\nspin-polarized state can serve as the minimal platform for hosting the moir\\'e\ninduced quantum anomalous Hall effect, supported by Hartree Fock interaction\nkernel analysis and self-consistent mean field calculations.","PeriodicalId":501137,"journal":{"name":"arXiv - PHYS - Mesoscale and Nanoscale Physics","volume":"14 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Artificial moiré engineering for an ideal BHZ model\",\"authors\":\"Wangqian Miao, Arman Rashidi, Xi Dai\",\"doi\":\"arxiv-2409.08540\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We demonstrate that (001) grown Cd3As2 thin films with a\\nsuperlattice-patterned gate can potentially realize the moir\\\\'e\\nBernevig-Hughes-Zhang (BHZ) model. Our calculations identify the\\nparameterization region necessary to achieve topological flat mini-bands with a\\nC4z symmetric and a C6z symmetric potential. Additionally, we show that a\\nspin-polarized state can serve as the minimal platform for hosting the moir\\\\'e\\ninduced quantum anomalous Hall effect, supported by Hartree Fock interaction\\nkernel analysis and self-consistent mean field calculations.\",\"PeriodicalId\":501137,\"journal\":{\"name\":\"arXiv - PHYS - Mesoscale and Nanoscale Physics\",\"volume\":\"14 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - Mesoscale and Nanoscale Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.08540\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Mesoscale and Nanoscale Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.08540","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Artificial moiré engineering for an ideal BHZ model
We demonstrate that (001) grown Cd3As2 thin films with a
superlattice-patterned gate can potentially realize the moir\'e
Bernevig-Hughes-Zhang (BHZ) model. Our calculations identify the
parameterization region necessary to achieve topological flat mini-bands with a
C4z symmetric and a C6z symmetric potential. Additionally, we show that a
spin-polarized state can serve as the minimal platform for hosting the moir\'e
induced quantum anomalous Hall effect, supported by Hartree Fock interaction
kernel analysis and self-consistent mean field calculations.
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