Angular dependence of the c-axis normal state magnetoresistance in single crystal Tl2Ba2CuO6

被引:92
作者
Hussey, NE [1 ]
Cooper, JR [1 ]
Wheatley, JM [1 ]
Fisher, IR [1 ]
Carrington, A [1 ]
Mackenzie, AP [1 ]
Lin, CT [1 ]
Milat, O [1 ]
机构
[1] UNIV ZAGREB,INST PHYS,ZAGREB 41000,CROATIA
关键词
D O I
10.1103/PhysRevLett.76.122
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report measurements of the normal state magnetoresistance (MR) from 30 to 340 K in fields B up to 13 T for single crystals of overdoped Tl2Ba2CuO6 (T-c less than or equal to 25 K). For out-of-plane current flow, the transverse MR Delta rho(c)/rho(c) is large and positive. On rotating B within the a-b plane, Delta rho(c)/rho(c) exhibits a striking anisotropy with fourfold symmetry. The amplitude of this effect increases as B-4 and the maximum MR occurs for B along the [110] crystallographic directions, i.e., at 45 degrees to the Cu-O-Cu bonds. This the first direct evidence for anisotropy of the in-plane mean free path in the cuprates.
引用
收藏
页码:122 / 125
页数:4
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