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


Reference:

Narduzzo, A., Albert, G., French, M., Mangkorntong, N., Nohara, M., Takagi, H. and Hussey, N., 2008. Violation of the isotropic mean free path approximation for overdoped La2−xSrxCuO4. Physical Review B, 77 (22), 220502.

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http://dx.doi.org/10.1103/PhysRevB.77.220502

Abstract

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.

Details

Item Type Articles
CreatorsNarduzzo, A., Albert, G., French, M., Mangkorntong, N., Nohara, M., Takagi, H. and Hussey, N.
DOI10.1103/PhysRevB.77.220502
DepartmentsFaculty of Science > Physics
RefereedYes
StatusPublished
ID Code26406

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