Effect of field on the orientation of flux lines in La 1.85Sr0.15CuO4 single crystal

الملخص EN

-Using a double squid magnetometer, the angular variation of transverse (Mr) and longitudinal (Mrf components of the magnetization has been investigated as a function of the field near the critical temperature Tc.

A qualitative description of the variation of the orientation of Jlux lines relative to the applied field direction shows strong pinning effects for the lowest field which could be ascribed to the intrinsic pinning of vortices by the layered structure.

The reversible part of Mr exhibits anomalies.

Such effects are discussed in the context of the lock-in transition of vortices in layered structures.