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| Field | Value |
| Title | Thermo-magnetic history effects in the vortex state of YNi(2)B(2)C superconductor |
| Names |
DAS, P
TOMY, CV TAKEYA, H RAMAKRISHNAN, S GROVER, AK |
| Date Issued | 2009 (iso8601) |
| Abstract | The nature of five-quadrant magnetic isotherms for H parallel to a is different from that for H parallel to c in a single crystal of YNi(2)B(2)C, pointing towards an anisotropic behaviour of the flux line lattice (FLL). For H parallel to a, a well defined peak effect (PE) and second magnetization peak (SMP) can be observed and the loop is open prior to the PE. However, for H parallel to c, the loop is closed and one can observe only the PE. We have investigated the history dependence of magnetization hysteresis data for H parallel to aby recording minor hysteresis loops. The observed history dependence Jc(H) across different anomalous regions are rationalized on the basis of superheating/supercooling of the vortex matter across the first-order-like phase transition and possible additional effects due to annealing of the disordered vortex bundles to the underlying equilibrium state. |
| Genre | Proceedings Paper |
| Topic | Flux-Line-Lattice |
| Identifier | 25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 5: SUPERCONDUCTIVITY,150,- |