Abstract:
Experimental and theoretical studies of the magnetization curves M(H) obtained for plates of an anisotropic hard superconductor are performed. The samples are YBCO single-domain textured crystals with the c axis lying in the sample plane. It is shown that, for some orientations of the magnetic field in the sample plane, the magnetization curves contain additional extrema; at the same time, the virgin magnetization curve M(H) exhibits features characteristic of the peak effect. This proves that the anisotropy of the current-carrying ability can give rise to a new type of peak effect.
Citation:
I. F. Voloshin, A. V. Kalinov, L. M. Fisher, S. A. Derevyanko, V. A. Yampol'skii, “A new type of peak effect in the magnetization of anisotropic superconductors”, Pis'ma v Zh. Èksper. Teoret. Fiz., 73:6 (2001), 323–327; JETP Letters, 73:6 (2001), 285–288