Record Details

Paramagnetic magnetization signals and curious metastable behaviour in field-cooled magnetization of a single crystal of superconductor 2H-NbSe2

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Paramagnetic magnetization signals and curious metastable behaviour in field-cooled magnetization of a single crystal of superconductor 2H-NbSe2
 
Creator KUMAR, S
TOMY, CV
BALAKRISHNAN, G
PAUL, DM
GROVER, AK
 
Subject HIGH-TEMPERATURE SUPERCONDUCTORS
GINZBURG-LANDAU EQUATIONS
SELF-CONSISTENT SOLUTION
PHASE-TRANSITIONS
NIOBIUM DISKS
MEISSNER
FLUX
NB
DIAGRAM
LATTICE
field-cooled magnetization response in superconductors
paramagnetic magnetization response
metastability effects
 
Description We present here some newer characteristics pertaining to paramagnetic Meissner effect like response in a single crystal of the low T-c superconducting compound 2H-NbSe2 via a detailed study of effects of perturbation on the field-cooled magnetization response. In the temperature range, where an anomalous paramagnetic magnetization occurs, the field-cooled magnetization response is found to be highly metastable: it displays a curious tendency to switch randomly from a given paramagnetic value to a diamagnetic or to a different paramagnetic value, when the system is perturbed by an impulse of an externally applied ac magnetic field. The new facets revealed in a single crystal of 2H-NbSe2 surprisingly bear a marked resemblance with the characteristics of magnetization behaviour anticipated for the giant vortex states with multiple flux quanta (L Phi(0), Phi(0)= hc/2e, L > 1) predicted to occur in mesoscopic-sized superconducting specimen and possible transitions amongst such states.
 
Publisher IOP PUBLISHING LTD
 
Date 2016-01-15T08:17:25Z
2016-01-15T08:17:25Z
2015
 
Type Article
 
Identifier JOURNAL OF PHYSICS-CONDENSED MATTER, 27(29)
0953-8984
1361-648X
http://dx.doi.org/10.1088/0953-8984/27/29/295701
http://dspace.library.iitb.ac.in/jspui/handle/100/18144
 
Language en