Violation of the isotropic mean free path approximation for overdoped La2-xSrxCuO4

被引：35

作者：

Narduzzo, A. ^{[1
]}

Albert, G. ^{[1
]}

French, M. M. J. ^{[1
]}

Mangkorntong, N. ^{[2
]}

Nohara, M. ^{[2
]}

Takagi, H. ^{[2
,3
]}

Hussey, N. E. ^{[1
]}

机构：

[1] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

[2] Univ Tokyo, Dept Adv Mat Sci, Grad Sch Frontier Sci, Kashiwa, Chiba 2778651, Japan

[3] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 22期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevB.77.220502

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetotransport measurements on the overdoped cuprate La1.7Sr0.3CuO4 are fitted using the Ong construction [Phys. Rev. B 43, 193 (1991)] and band parameters inferred from angle-resolved photoemission. Within a band picture, the low-temperature Hall data can only be fitted satisfactorily by invoking strong basal-plane anisotropy in the mean free path l. This violation of the isotropic-l approximation supports a picture of dominant small-angle elastic scattering in cuprates due to out-of-plane substitutional disorder. We conjecture that both band anisotropy and anisotropy in the elastic-scattering channel strongly renormalize the Hall coefficient in La2-xSrxCuO4 across the entire overdoped regime.

引用

页数：4

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