| PHONON-EXCITON MECHANISM IN YBa_2Cu_3O_(7-δ) SYSTEM |
| |
| 引用本文： | 李贞姬,李凤月.PHONON-EXCITON MECHANISM IN YBa_2Cu_3O_(7-δ) SYSTEM[J].西安交通大学学报(英文版),2006(1). |
| |
| 作者姓名： | 李贞姬 李凤月 |
| |
| 作者单位： | Department of Physics Xi'an Jiaotong University，Xi'an 710049，China，Department of Physics，Xi'an Jiaotong University，Xi'an 710049，China |
| |
| 基金项目： | ThisworkwassupportedbytheStudyAbroadReturneeFoundationofMinistryofEducation(No.200314). |
| |
| 摘 要： | INTRODUCTION1Phonon mechanismalone inYBCOsystemSince1968,Mc Millan1]and Allen-Dynes2]numerically solved the Eliashberg equations for va-rious cases based onthe BCStheory,and constructedan approxi mate equation relating the strong cou-plings superconducting transition temperatureTCtothe parameters:electron-phonon coupling constantλphand pseudo potentialμ*i.e.TC=1.Θ45exp-λph-1μ.0*4((11++0λ.p6h)2λph)(1.1)whereΘis the Debye temperature.Usually,λphisdeter mined by specific coe…
|
| 本文献已被 CNKI 等数据库收录！ |
