{"title":"纳米粒子中双间隙超导态的凝聚能","authors":"S. Kruchinin, H. Kawabe, H. Nagao, Y. Nakazawa","doi":"10.1155/2013/576232","DOIUrl":null,"url":null,"abstract":"Recent technology and experiments have fabricated high-quality superconducting MgB2 nanoparticles. \nWe investigate properties of two-gap superconductivity in nanosized systems by using a \ntwo-sublevel model. In the present work, we analyze the results obtained for superconducting granules \nin the case of multiband superconductivity. We discuss the finite size effect in multiband \nsuperconductors. A definition of the critical level spacing of two-gap superconductivity is also presented, \nand we discuss the condensation energy and the parity gap of two-gap superconductivity \nin relation to the size dependence of those properties with two bulk gaps and the effective pair \nscattering process between two sublevels.","PeriodicalId":16507,"journal":{"name":"Journal of Nanoparticles","volume":"11 1","pages":"1-6"},"PeriodicalIF":0.0000,"publicationDate":"2013-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Condensation Energy for a Two-Gap Superconducting State in Nanoparticles\",\"authors\":\"S. Kruchinin, H. Kawabe, H. Nagao, Y. Nakazawa\",\"doi\":\"10.1155/2013/576232\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Recent technology and experiments have fabricated high-quality superconducting MgB2 nanoparticles. \\nWe investigate properties of two-gap superconductivity in nanosized systems by using a \\ntwo-sublevel model. In the present work, we analyze the results obtained for superconducting granules \\nin the case of multiband superconductivity. We discuss the finite size effect in multiband \\nsuperconductors. A definition of the critical level spacing of two-gap superconductivity is also presented, \\nand we discuss the condensation energy and the parity gap of two-gap superconductivity \\nin relation to the size dependence of those properties with two bulk gaps and the effective pair \\nscattering process between two sublevels.\",\"PeriodicalId\":16507,\"journal\":{\"name\":\"Journal of Nanoparticles\",\"volume\":\"11 1\",\"pages\":\"1-6\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2013-09-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Nanoparticles\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1155/2013/576232\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Nanoparticles","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1155/2013/576232","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Condensation Energy for a Two-Gap Superconducting State in Nanoparticles
Recent technology and experiments have fabricated high-quality superconducting MgB2 nanoparticles.
We investigate properties of two-gap superconductivity in nanosized systems by using a
two-sublevel model. In the present work, we analyze the results obtained for superconducting granules
in the case of multiband superconductivity. We discuss the finite size effect in multiband
superconductors. A definition of the critical level spacing of two-gap superconductivity is also presented,
and we discuss the condensation energy and the parity gap of two-gap superconductivity
in relation to the size dependence of those properties with two bulk gaps and the effective pair
scattering process between two sublevels.
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