{"title":"铁磁-应变/ kekul<s:1> - y /超导体石墨烯结中的谷相关异常Andreev反射","authors":"Haoran Li, Qingping Wu, Chuan Tan, Zhengfang Liu, Xianbo Xiao","doi":"10.1134/S1063783425602097","DOIUrl":null,"url":null,"abstract":"<p>The paper provides a theoretical analysis of the scattering process within a ferromagnet-strain/Kekulé-Y/superconductor graphene heterostructure. Equal-valley pair correlations in the vicinity of the ferromagnet-Kekulé-Y interface have been calculated, revealing a direct relationship between valley-related anomalous Andreev reflection, which is caused by the proximity effect in the presence of Kekulé-Y‑shaped graphene. The results show that the action of magnetic vector, strain and Kekulé-Y graphene caenhance the anomalous Andreev reflection. Moreover, by calculating the charge conductance and valley polarization conductance, our results reveal that the valley polarization conductance can be enhanced by Kekulé-Y shaped, strain and magnetic vector. These findings may provide a tool for detecting the entanglement of the equal valley superconducting pair correlations in hybrid structures.</p>","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":"67 8","pages":"625 - 634"},"PeriodicalIF":1.8000,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Valley-Related Anomalous Andreev Reflection in Ferromagnet-Strain/Kekulé-Y/Superconductor Graphene Junctions\",\"authors\":\"Haoran Li, Qingping Wu, Chuan Tan, Zhengfang Liu, Xianbo Xiao\",\"doi\":\"10.1134/S1063783425602097\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The paper provides a theoretical analysis of the scattering process within a ferromagnet-strain/Kekulé-Y/superconductor graphene heterostructure. Equal-valley pair correlations in the vicinity of the ferromagnet-Kekulé-Y interface have been calculated, revealing a direct relationship between valley-related anomalous Andreev reflection, which is caused by the proximity effect in the presence of Kekulé-Y‑shaped graphene. The results show that the action of magnetic vector, strain and Kekulé-Y graphene caenhance the anomalous Andreev reflection. Moreover, by calculating the charge conductance and valley polarization conductance, our results reveal that the valley polarization conductance can be enhanced by Kekulé-Y shaped, strain and magnetic vector. These findings may provide a tool for detecting the entanglement of the equal valley superconducting pair correlations in hybrid structures.</p>\",\"PeriodicalId\":731,\"journal\":{\"name\":\"Physics of the Solid State\",\"volume\":\"67 8\",\"pages\":\"625 - 634\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2025-08-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physics of the Solid State\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1063783425602097\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PHYSICS, CONDENSED MATTER\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of the Solid State","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S1063783425602097","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, CONDENSED MATTER","Score":null,"Total":0}
Valley-Related Anomalous Andreev Reflection in Ferromagnet-Strain/Kekulé-Y/Superconductor Graphene Junctions
The paper provides a theoretical analysis of the scattering process within a ferromagnet-strain/Kekulé-Y/superconductor graphene heterostructure. Equal-valley pair correlations in the vicinity of the ferromagnet-Kekulé-Y interface have been calculated, revealing a direct relationship between valley-related anomalous Andreev reflection, which is caused by the proximity effect in the presence of Kekulé-Y‑shaped graphene. The results show that the action of magnetic vector, strain and Kekulé-Y graphene caenhance the anomalous Andreev reflection. Moreover, by calculating the charge conductance and valley polarization conductance, our results reveal that the valley polarization conductance can be enhanced by Kekulé-Y shaped, strain and magnetic vector. These findings may provide a tool for detecting the entanglement of the equal valley superconducting pair correlations in hybrid structures.
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Presents the latest results from Russia’s leading researchers in condensed matter physics at the Russian Academy of Sciences and other prestigious institutions. Covers all areas of solid state physics including solid state optics, solid state acoustics, electronic and vibrational spectra, phase transitions, ferroelectricity, magnetism, and superconductivity. Also presents review papers on the most important problems in solid state physics.
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