Anisotropy scaling close to the ab plane in La 1.9 Sr 0.1 CuO 4 by torque magnetometry
Anisotropy scaling close to the ab plane in La 1.9 Sr 0.1 CuO 4 by torque magnetometry
复制标题
通过扭矩磁力测定法观察 La 1.9 Sr 0.1 CuO 4 中靠近 ab 平面的各向异性标度
DOI：
10.1103/physrevb.59.r717
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发表时间：
1999
影响因子：
3.7
通讯作者：
A. Revcolevschi
中科院分区：
文献类型：
--
作者：
M. Willemin;C. Rossel;J. Hofer;H. Keller;A. Revcolevschi
The effective mass anisotropy ratio \ensuremath{\gamma} is generally determined relative to the main axes of a superconductor. Torque measurements with arbitrary field orientations, especially near the ab plane, are presented. The scaling of the apparent anisotropy ratio ${\ensuremath{\gamma}}_{\mathrm{app}}$ is verified also very close to the ab plane in the highly anisotropic ${\mathrm{La}}_{1.9}{\mathrm{Sr}}_{0.1}{\mathrm{CuO}}_{4}.$ This method allows a very precise determination of ${\ensuremath{\gamma}}_{\mathrm{ac}}$ and shows the importance of the field orientation for ab-plane measurements.
