Spin relaxation of Mn ions in rare earth manganites in paramagnetic region

摘要

Within the framework of the London model the distribution of local magnetic field near thesurface of plate of anisotropic type-II superconductor is found when the external magnetic fieldis perpendicular to the axis of symmetry of the crystal. There is obtained the distribution ofthe local magnetic field depending on the distance to the surface of the superconducting plate.It is shown that the lineshape of distribution of local magnetic field near the surface changesconsiderably as compared with the distribution in the depth of massive superconductor. Thischange should be taken into account when interpreting experimental data on the observationof the local magnetic field in the near-surface region of massive superconductor and in thinsuperconducting films (thickness is less than the depth of penetration of the magnetic field inthe superconductor).