Manifestation of history-dependent critical currents via dc and ac magnetization measurements in single crystals of CeRu2 and 2H-NbSe2

G. Ravikumar, V. C. Sahni, P. K. Mishra, T. V. Chandrasekhar Rao, S. S. Banerjee, A. K. Grover, S. Ramakrishnan, S. Bhattacharya, M. J. Higgins, E. Yamamoto, Y. Haga, M. Hedo, Yoshihiko Inada, Y. Onuki

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

A study of path dependent effects in single crystals of CeRu2 and 2H-NbSe2 shows that critical current density Jc of the vortex state depends on its thermomagnetic history over a very large part of (H,T) parameter space. The path dependence in Jc is absent above the peak position (i.e., H>Hp) of the peak effect region, which we believe identifies the complete loss of order in the vortex structure. The highly disordered field cooled (FC) state can be healed into a relatively ordered vortex lattice by subjecting it to a large enough change in dc field (few tens of Oe) or by shaking the field cooled state with sufficient ac field (few Oe).

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume57
Issue number18
Publication statusPublished - May 1 1998
Externally publishedYes

Fingerprint

Critical currents
Magnetization
critical current
Vortex flow
histories
Single crystals
vortices
magnetization
single crystals
shaking
History
current density

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Ravikumar, G., Sahni, V. C., Mishra, P. K., Chandrasekhar Rao, T. V., Banerjee, S. S., Grover, A. K., ... Onuki, Y. (1998). Manifestation of history-dependent critical currents via dc and ac magnetization measurements in single crystals of CeRu2 and 2H-NbSe2 Physical Review B - Condensed Matter and Materials Physics, 57(18).

Manifestation of history-dependent critical currents via dc and ac magnetization measurements in single crystals of CeRu2 and 2H-NbSe2 . / Ravikumar, G.; Sahni, V. C.; Mishra, P. K.; Chandrasekhar Rao, T. V.; Banerjee, S. S.; Grover, A. K.; Ramakrishnan, S.; Bhattacharya, S.; Higgins, M. J.; Yamamoto, E.; Haga, Y.; Hedo, M.; Inada, Yoshihiko; Onuki, Y.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 57, No. 18, 01.05.1998.

Research output: Contribution to journalArticle

Ravikumar, G, Sahni, VC, Mishra, PK, Chandrasekhar Rao, TV, Banerjee, SS, Grover, AK, Ramakrishnan, S, Bhattacharya, S, Higgins, MJ, Yamamoto, E, Haga, Y, Hedo, M, Inada, Y & Onuki, Y 1998, 'Manifestation of history-dependent critical currents via dc and ac magnetization measurements in single crystals of CeRu2 and 2H-NbSe2 ', Physical Review B - Condensed Matter and Materials Physics, vol. 57, no. 18.
Ravikumar, G. ; Sahni, V. C. ; Mishra, P. K. ; Chandrasekhar Rao, T. V. ; Banerjee, S. S. ; Grover, A. K. ; Ramakrishnan, S. ; Bhattacharya, S. ; Higgins, M. J. ; Yamamoto, E. ; Haga, Y. ; Hedo, M. ; Inada, Yoshihiko ; Onuki, Y. / Manifestation of history-dependent critical currents via dc and ac magnetization measurements in single crystals of CeRu2 and 2H-NbSe2 In: Physical Review B - Condensed Matter and Materials Physics. 1998 ; Vol. 57, No. 18.
@article{93f3d29cd8db4bd2a2b28d1db7e80150,
title = "Manifestation of history-dependent critical currents via dc and ac magnetization measurements in single crystals of CeRu2 and 2H-NbSe2",
abstract = "A study of path dependent effects in single crystals of CeRu2 and 2H-NbSe2 shows that critical current density Jc of the vortex state depends on its thermomagnetic history over a very large part of (H,T) parameter space. The path dependence in Jc is absent above the peak position (i.e., H>Hp) of the peak effect region, which we believe identifies the complete loss of order in the vortex structure. The highly disordered field cooled (FC) state can be healed into a relatively ordered vortex lattice by subjecting it to a large enough change in dc field (few tens of Oe) or by shaking the field cooled state with sufficient ac field (few Oe).",
author = "G. Ravikumar and Sahni, {V. C.} and Mishra, {P. K.} and {Chandrasekhar Rao}, {T. V.} and Banerjee, {S. S.} and Grover, {A. K.} and S. Ramakrishnan and S. Bhattacharya and Higgins, {M. J.} and E. Yamamoto and Y. Haga and M. Hedo and Yoshihiko Inada and Y. Onuki",
year = "1998",
month = "5",
day = "1",
language = "English",
volume = "57",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Physical Society",
number = "18",

}

TY - JOUR

T1 - Manifestation of history-dependent critical currents via dc and ac magnetization measurements in single crystals of CeRu2 and 2H-NbSe2

AU - Ravikumar, G.

AU - Sahni, V. C.

AU - Mishra, P. K.

AU - Chandrasekhar Rao, T. V.

AU - Banerjee, S. S.

AU - Grover, A. K.

AU - Ramakrishnan, S.

AU - Bhattacharya, S.

AU - Higgins, M. J.

AU - Yamamoto, E.

AU - Haga, Y.

AU - Hedo, M.

AU - Inada, Yoshihiko

AU - Onuki, Y.

PY - 1998/5/1

Y1 - 1998/5/1

N2 - A study of path dependent effects in single crystals of CeRu2 and 2H-NbSe2 shows that critical current density Jc of the vortex state depends on its thermomagnetic history over a very large part of (H,T) parameter space. The path dependence in Jc is absent above the peak position (i.e., H>Hp) of the peak effect region, which we believe identifies the complete loss of order in the vortex structure. The highly disordered field cooled (FC) state can be healed into a relatively ordered vortex lattice by subjecting it to a large enough change in dc field (few tens of Oe) or by shaking the field cooled state with sufficient ac field (few Oe).

AB - A study of path dependent effects in single crystals of CeRu2 and 2H-NbSe2 shows that critical current density Jc of the vortex state depends on its thermomagnetic history over a very large part of (H,T) parameter space. The path dependence in Jc is absent above the peak position (i.e., H>Hp) of the peak effect region, which we believe identifies the complete loss of order in the vortex structure. The highly disordered field cooled (FC) state can be healed into a relatively ordered vortex lattice by subjecting it to a large enough change in dc field (few tens of Oe) or by shaking the field cooled state with sufficient ac field (few Oe).

UR - http://www.scopus.com/inward/record.url?scp=0000188363&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000188363&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0000188363

VL - 57

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 18

ER -