IMPURITY EFFECT ON THE TRANSITION TEMPERATURE OF THE SUPERCONDUCTING FULLERIDES

被引:0
|
作者
Huang, H. [1 ]
Gan, Z. -Z. [2 ]
机构
[1] N China Elect Power Univ, Dept Math & Phys, Beijing 102206, Peoples R China
[2] Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China
来源
关键词
Superconducting fullerides; impurity model; ORIENTATIONAL DISORDER; ALKALI-METAL; DOPED C-60; T-C; A3C60; STATE; K3C60;
D O I
10.1142/S0217979211058924
中图分类号
O59 [应用物理学];
学科分类号
摘要
We study the alkali-metal-doped fulleride systems based on an impurity model. The bound states are induced by the impurity potential, and the local density of states of the neighboring molecules at the Fermi level is remarkably reduced. We point out that the superconductivity of the whole system will be destroyed when the average distance between the impurities reaches the order of the coherence length. It gives a reasonable explanation to the strange behavior of the transition temperature of the superconducting fuller ides.
引用
收藏
页码:1577 / 1584
页数:8
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