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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/100/1628

Title: Thermo-magnetic history effects in the vortex state of YNi(2)B(2)C superconductor
Authors: DAS, P
TOMY, CV
TAKEYA, H
RAMAKRISHNAN, S
GROVER, AK
Keywords: flux-line-lattice
2h-nbse2
ceru2
peak
Issue Date: 2009
Publisher: IOP PUBLISHING LTD
Citation: 25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 5: SUPERCONDUCTIVITY,150,-
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.
URI: http://dx.doi.org/10.1088/1742-6596/150/5/052042
http://dspace.library.iitb.ac.in/xmlui/handle/10054/14952
http://hdl.handle.net/100/1628
ISSN: 1742-6588
Appears in Collections:Proceedings papers

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