New method of studying the anisotropy of lower critical fields in HTSC

                                               Vitaly A. Finkel

National Science Center Kharkov Institute of Physics & Technology, 1st Academicheskaya St., 
UA 61108, Kharkov, Ukraine

If we rotate a magnetic field H relatively a certain directions in the laboratory system of coordinates, vector H forms average angles, and, respectively, with the magnetic anisotropy axis c of HTSC textured polycrystalline sample. We may receive three or more equations for angular dependence of lower critical field Hc1. In consequence of experiments on textured YBa2Cu3O7-dd samples we obtained the, and / values closed to parameters of single crystals.