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Electronic anisotropy in single-crystal La2CuO4


We have measured resistivity ρ components both parallel and perpendicular to the Cu-O planes in single-crystalline La2CuO4. Substantial anisotropy, reaching values as large as 103, is observed in the resistivity. The temperature dependence of ρ, together with Hall effect and thermoelectric power measurements, suggests hopping conduction between localized states at low temperatures, with diffusive transport at higher temperatures. These results are in contradistinction to previous reports. © 1988 The American Physical Society.

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