MIXED-STATE TRANSPORT-PROPERTIES OF ANISOTROPIC SUPERCONDUCTORS IN ANOBLIQUE FIELD

The mixed-state in-plane magnetoresistance r(xx) and Hall resistance r (xy) have been investigated for highly anisotropic Tl2Ba2CaCu2O8 (T122 12) and Nd1.85Ce0.15CuO4 (NCCO). To observe the effects of anisotropy we employ an experimental geometry where the magnetic field can be rot ated by an angle theta off the c-axis while keeping the field perpendi cular to the current direction. For both T12212 and NCCO we find that, over a wide angular range, only vortex segments parallel to the c-axi s are contributing to the measured dissipation and Hall effect. These results are in agreement with an anisotropic-mass model.