Vortex order-disorder transition in relaxation and field-sweep measurements

B. Kalisky; A. Shaulov; D. Bhattacharya; T. Tamegai; Y. Yeshurun

doi:10.1016/j.physc.2004.02.121

Vortex order-disorder transition in relaxation and field-sweep measurements

B. Kalisky, A. Shaulov, D. Bhattacharya, T. Tamegai, Y. Yeshurun

Department of Physics

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

Time evolution of the induction profile across a Bi₂Sr ₂CaCu₂O_8+δ crystal was magneto-optically recorded in two experiments: during ramping the external magnetic field or after a sudden application of the field. The results of these experiments reveal a front-like propagation or retreat of a transient disordered vortex state, respectively. Analysis of the front velocity shows that while the retreat is continuously decelerated, the propagation is accelerated, approaching a constant velocity when the front induction reaches the vortex order-disorder phase transition field B_od. The latter observation suggests a method for determining the value of B_od, eliminating transient state effects.

Original language	English
Pages (from-to)	382-383
Number of pages	2
Journal	Physica C: Superconductivity and its Applications
Volume	408-410
Issue number	1-4
DOIs	https://doi.org/10.1016/j.physc.2004.02.121
State	Published - Aug 2004
Event	Proceedings of the International Conference on Materials - Rio de Janeiro, Brazil Duration: 25 May 2003 → 30 May 2003

Bibliographical note

Funding Information:
This manuscript is part of B.K. Ph.D. thesis. We acknowledge support from the German–Israel Foundation (GIF). Y.Y. acknowledges support from the ISF Center of Excellence Program, and by the Heinrich Hertz Minerva Center for High Temperature Superconductivity.

Keywords

Annealing time
Transient vortex state
Vortex phase transitions

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10.1016/j.physc.2004.02.121

Cite this

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abstract = "Time evolution of the induction profile across a Bi2Sr 2CaCu2O8+δ crystal was magneto-optically recorded in two experiments: during ramping the external magnetic field or after a sudden application of the field. The results of these experiments reveal a front-like propagation or retreat of a transient disordered vortex state, respectively. Analysis of the front velocity shows that while the retreat is continuously decelerated, the propagation is accelerated, approaching a constant velocity when the front induction reaches the vortex order-disorder phase transition field Bod. The latter observation suggests a method for determining the value of Bod, eliminating transient state effects.",

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AU - Yeshurun, Y.

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AB - Time evolution of the induction profile across a Bi2Sr 2CaCu2O8+δ crystal was magneto-optically recorded in two experiments: during ramping the external magnetic field or after a sudden application of the field. The results of these experiments reveal a front-like propagation or retreat of a transient disordered vortex state, respectively. Analysis of the front velocity shows that while the retreat is continuously decelerated, the propagation is accelerated, approaching a constant velocity when the front induction reaches the vortex order-disorder phase transition field Bod. The latter observation suggests a method for determining the value of Bod, eliminating transient state effects.

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Vortex order-disorder transition in relaxation and field-sweep measurements

Abstract

Bibliographical note

Keywords

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