Magnetic anisotropy of a <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">Bi</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">Sr</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">CaCu</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">O</mi></mrow><mrow><mi mathvariant="italic">x</mi></mrow></msub></mrow></math> single crystal

J. C. Martínez; S. H. Brongersma; A. Koshelev; B. Ivlev; P. H. Kes; R. P. Griessen; D. G. de Groot; Z. Tarnavski; A. A. Menovsky

doi:10.1103/PhysRevLett.69.2276

Magnetic anisotropy of a ${Bi}_{2}$ ${Sr}_{2}$ ${CaCu}_{2}$ $O_{x}$ single crystal

J. C. Martínez, S. H. Brongersma, A. Koshelev, B. Ivlev, P. H. Kes, R. P. Griessen, D. G. de Groot, Z. Tarnavski, and A. A. Menovsky

Phys. Rev. Lett. 69, 2276 – Published 12 October 1992

Abstract

New magnetic torque measurements on a high-quality ${Bi}_{2}$ ${Sr}_{2}$ ${CaCu}_{2}$ $O_{x}$ single crystal show that only a lower bound for the anisotropy parameter γ>150 can be given. For misorientations of the field H from the (a,b) plane larger than 0.5°, the results can be rescaled to magnetization M versus H. The behavior of M can be consistently described by a recent theory of Bulaevskii, Ledvij, and Kogan.