Angular Dependence of thec-axis Normal State Magnetoresistance in Single CrystalTl2Ba2CuO6

Autor:	J. R. Cooper, Ognjen Milat, Chengtian Lin, J. M. Wheatley, Nigel E. Hussey, Ian R. Fisher, A. Carrington, Andrew P. Mackenzie
Rok vydání:	1996
Předmět:	Physics Transverse plane Amplitude Nuclear magnetic resonance Condensed matter physics Magnetoresistance Electrical resistivity and conductivity Mean free path Condensed Matter::Superconductivity General Physics and Astronomy Cuprate Anisotropy Single crystal
Zdroj:	Physical Review Letters. 76:122-125
ISSN:	1079-7114 0031-9007
DOI:	10.1103/physrevlett.76.122
Popis:	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.
Databáze:	OpenAIRE
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