Anisotropy in the vortex phase diagram and the pinning force density in the basal plane of YNi(2)B(2)C
DSpace at IIT Bombay
View Archive InfoField | Value | |
Title |
Anisotropy in the vortex phase diagram and the pinning force density in the basal plane of YNi(2)B(2)C
|
|
Creator |
DAS, P
TOMY, CV TAKEYA, H RAMAKRISHNAN, S GROVER, AK |
|
Subject |
flux-line-lattice
matter superconductors transition 2h-nbse2 luni2b2c flux line lattice pinning force peak effect anisotropy |
|
Description |
We present the magnetic field dependence of the critical current density from dc magnetization measurements concerning the anisotropic behaviour of flux line lattice (FLL) in a single crystal of MAC The peak effect (PE) phenomenon is observed for all crystallographic orientations, but the second magnetization peak (SMP) anomaly is observed only for H parallel to a. Our study reveals that the FLL obtained when H parallel to[110] is better ordered within the basal plane. However, the FLL for H parallel to c is found to be even more ordered than that for H parallel to[110). The perfect square symmetry of the FLL for H parallel to c is perhaps responsible for promoting the realization of the best spatial order of the FLL prior to the onset of the PE, indicating a correlation between the crystalline lattice and the vortex lattice. We have also found a change over in the power law governing the decay of the critical current density which is identified as a crossover from weak to weaker pinning regime in the phase diagram. (C) 2009
|
|
Publisher |
ELSEVIER SCIENCE BV
|
|
Date |
2011-07-24T09:28:59Z
2011-12-26T12:49:54Z 2011-12-27T05:35:42Z 2011-07-24T09:28:59Z 2011-12-26T12:49:54Z 2011-12-27T05:35:42Z 2009 |
|
Type |
Article
|
|
Identifier |
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 469(4), 151-156
0921-4534 http://dx.doi.org/10.1016/j.physc.2009.01.004 http://dspace.library.iitb.ac.in/xmlui/handle/10054/6384 http://hdl.handle.net/10054/6384 |
|
Language |
en
|
|