Автор |
Xiao-hua Xu |
Автор |
Zheng-zhong Li |
Автор |
Wang Xu |
Дата выпуска |
1996-03-18 |
dc.description |
The effects of conduction-band (CB) impurities in heavy-fermion systems are studied on the basis of the periodic Anderson model in the framework of a slave-boson mean-field theory within the single-site coherent-potential approximation (CPA). We provide a simplified CPA formalism for the treatment of mixing disorder induced by CB alloying. The density of states for conduction and localized f electrons can be calculated self-consistently in the whole impurity-concentration range. The concentration dependence of the specific-heat coefficient, static magnetic susceptibility and resistivity at low temperatures as well as the Kondo temperature in the alloys is obtained. The results indicate that the experimental observations in upon doping with Au, Ag and Al can be qualitatively explained as the effects of mixing disorder. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Normal-state properties of heavy-fermion systems with conduction-band impurities |
Тип |
paper |
DOI |
10.1088/0953-8984/8/12/013 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
8 |
Первая страница |
1997 |
Последняя страница |
2009 |
Аффилиация |
Xiao-hua Xu; Department of Physics, Nanjing University, Nanjing, 210093, People's Republic of China |
Аффилиация |
Zheng-zhong Li; Department of Physics, Nanjing University, Nanjing, 210093, People's Republic of China |
Аффилиация |
Wang Xu; Department of Physics, Nanjing University, Nanjing, 210093, People's Republic of China |
Выпуск |
12 |