Anisotropy of the Superconducting Critical Magnetic Field Hc2 of La–M–Cu–O System (M=Sr and Ba)
- 1 January 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (S3-2) , 1131
- https://doi.org/10.7567/jjaps.26s3.1131
Abstract
Results of experimental studies on single crystals of high-Tc oxide superconductors are presented. The anisotropy of the superconducting critical magnetic field Hc2 of (La1-xMx)2CuO4-δ (M=Ba and Sr and x∼0.075) indicates that the ratio of the conductivities along the directions within and perpendicular to the c plane, σ|| /σ⊥, is of the order of 102. The results show the direct evidence of the two dimensional character of the electron transport. The thermoelectric power of the same crystal of (La1-xSrxCuO4-δ is also shown. Brief comments on the crystal preparation are presented.Keywords
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