Abstract
Guided motion (GM) of vortices in vortex liquid phase of YBa 2Cu 3O 7− δ (YBaCuO) single crystal with unidirected twins is studied by measuring transverse voltages in geometry where the current is flowing in the a– b plane and the external magnetic field H is oriented along the c-axis. Field inversion was used for separation of the even component of the measured transverse and longitudinal voltages in order to select new even contribution to magnetoresistivity caused by GM of vortices. The results are discussed in terms of the phenomenological approach to the anisotropic pinning caused by unidirected twins.
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