铜氧化物超导体中的电子态

Progress of Theoretical Physics Supplement Pub Date : 2013-05-16 DOI:10.1143/PTPS.106.51

T. Matsuura, K. Miura, Y. Ono, D. Hirashima, Y. Kuroda

{"title":"铜氧化物超导体中的电子态","authors":"T. Matsuura, K. Miura, Y. Ono, D. Hirashima, Y. Kuroda","doi":"10.1143/PTPS.106.51","DOIUrl":null,"url":null,"abstract":"The d-p model with the local constraint has been studied. With help of the slave boson and 1/N-expansion the electronic states are investigated. At T<T 0 (coherence temperature) a new band (mid-gap state) appears in the CT gap which behaves as the Fermi liquid with the large Fermi surface. Luttinger sum rule is proved. At T 0 ≤T≤ω 0 (resonance temperature) the mid-gap state behaves as the marginal Fermi liquid. At T≥ω 0 such renormalized band collapses. These occur as the crossover phenomena in contrast to the phase transition in the mean field approximation","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":"106 1","pages":"51-62"},"PeriodicalIF":0.0000,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Electronic states in the Cu-oxide superconductors\",\"authors\":\"T. Matsuura, K. Miura, Y. Ono, D. Hirashima, Y. Kuroda\",\"doi\":\"10.1143/PTPS.106.51\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The d-p model with the local constraint has been studied. With help of the slave boson and 1/N-expansion the electronic states are investigated. At T<T 0 (coherence temperature) a new band (mid-gap state) appears in the CT gap which behaves as the Fermi liquid with the large Fermi surface. Luttinger sum rule is proved. At T 0 ≤T≤ω 0 (resonance temperature) the mid-gap state behaves as the marginal Fermi liquid. At T≥ω 0 such renormalized band collapses. These occur as the crossover phenomena in contrast to the phase transition in the mean field approximation\",\"PeriodicalId\":20614,\"journal\":{\"name\":\"Progress of Theoretical Physics Supplement\",\"volume\":\"106 1\",\"pages\":\"51-62\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2013-05-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Progress of Theoretical Physics Supplement\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1143/PTPS.106.51\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress of Theoretical Physics Supplement","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1143/PTPS.106.51","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}