Anomalous temperature dependence of persistent photoconductivity in C-60 single crystal

被引：18

作者：

Chiu, KC ^{[1
]}

Wang, JS ^{[1
]}

Dai, YT ^{[1
]}

Chen, YF ^{[1
]}

机构：

[1] NATL TAIWAN UNIV,DEPT PHYS,TAIPEI,TAIWAN

来源：

APPLIED PHYSICS LETTERS | 1996年 / 69卷 / 18期

关键词：

D O I：

10.1063/1.117552

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The temperature dependence of persistent photoconductivity (PPC) has been investigated in high-quality C-60 Single crystals. We found that the rotational order and disorder phase transition (T-c approximate to 260 K) can significantly change the PPC behavior. At temperatures above T-c, the PPC relaxation rate increases as temperature increases. Quite surprisingly, in the region T<T-c, the PPC relaxation rate decreases with increasing temperature. Our result clearly indicates that the underlying mechanism of the PPC effect involves the motion of the C-60 molecule. (C) 1996 American Institute of Physics.

引用

页码：2665 / 2667

页数：3

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