Thermal Expansion of La1.85Sr0.15CuO4 in Magnetic Fields up to 14 Tesla |
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| Authors: | D Bruns B Büchner R Gross T Lorenz S Uchida |
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| Affiliation: | (1) II. Physikalisches Institut, Universität zu Köln, 50937 Köln, Germany;(2) University of Tokyo, Bunkyo–Ku, Tokyo, 113, Japan |
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| Abstract: | We present thermal expansion measurements on a La1.85Sr0.15CuO4
single crystal in external magnetic fields. Clear anomalies of the thermal expansion are observed at the superconducting transition. We have studied in detail the anisotropic influence of external fields on the anomalies. As expected, the field dependence is maximum for B  c and minimum for B  c. The measured angular dependence corresponds to that of an anisotropic 3d superconductor with an anisotropy parameter   18. |
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