Low Temperature Physics: 30, 610 (2004); https://doi.org/10.1063/1.1789919 (3 pages)
On nonmonotonic temperature dependence of magnetization in YBCO single crystals at low fields
B.Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, 47 Lenin Ave., Kharkov 61103, Ukraine
Karazin Kharkov National University, 4 Svobody Sq., Kharkov 61077, Ukraine
Received March, 11, 2004
The experimental data on magnetic response of the YBa2Cu3O7–x single crystals with unidirectional twinning planes in low magnetic fields are reported. The nonmonotonic temperature dependence of magnetization is treated in terms of
some probable model of the existence of Josephson weak links in the twinning planes and the order parameter anisotropy.