Distributed injection of transient vortex states in a prism-shaped Bi2Sr2CaCu2O8+δ crystal

B. Kalisky; A. Shaulov; Y. Myasoedov; E. Zeldov; T. Tamegai; Y. Yeshurun

doi:10.1016/j.physc.2007.04.159

Distributed injection of transient vortex states in a prism-shaped Bi₂Sr₂CaCu₂O_8+δ crystal

B. Kalisky, A. Shaulov, Y. Myasoedov, E. Zeldov, T. Tamegai, Y. Yeshurun

Research output: Contribution to journal › Article › peer-review

Abstract

Magneto-optical measurements in Bi₂Sr₂CaCu₂O_8+δ demonstrate enhanced effects of transient disordered vortex states (TDVS) in a prism-shaped sample. The existence of such transient states is indicated by the appearance of a sharp change ('break') in the slope of the induction profiles. As the external magnetic field is swept up or down, the break, which signifies the front of the TDVS, moves towards the sample center at a constant velocity determined by the rate of change of the external field. We discuss the results in terms of a competition between injection and annealing processes, the latter being ineffective in the prism due to direct injection of disorder into the bulk through surface barriers distributed along the tilted facets of the prism.

Original language	English
Pages (from-to)	1210-1212
Number of pages	3
Journal	Physica C: Superconductivity and its Applications
Volume	460-462 II
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2007.04.159
State	Published - 1 Sep 2007

Bibliographical note

Funding Information:
This research is supported by the Israel Science Foundation (ISF) – Center of Excellence Program (Grant No. 828/05) and the Heinrich Hertz Minerva Center for High Temperature Superconductivity.

Keywords

BiSrCaCuO
Metastable vortex states
Surface barriers

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10.1016/j.physc.2007.04.159

Cite this

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title = "Distributed injection of transient vortex states in a prism-shaped Bi2Sr2CaCu2O8+δ crystal",

abstract = "Magneto-optical measurements in Bi2Sr2CaCu2O8+δ demonstrate enhanced effects of transient disordered vortex states (TDVS) in a prism-shaped sample. The existence of such transient states is indicated by the appearance of a sharp change ('break') in the slope of the induction profiles. As the external magnetic field is swept up or down, the break, which signifies the front of the TDVS, moves towards the sample center at a constant velocity determined by the rate of change of the external field. We discuss the results in terms of a competition between injection and annealing processes, the latter being ineffective in the prism due to direct injection of disorder into the bulk through surface barriers distributed along the tilted facets of the prism.",

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author = "B. Kalisky and A. Shaulov and Y. Myasoedov and E. Zeldov and T. Tamegai and Y. Yeshurun",

note = "Funding Information: This research is supported by the Israel Science Foundation (ISF) – Center of Excellence Program (Grant No. 828/05) and the Heinrich Hertz Minerva Center for High Temperature Superconductivity.",

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doi = "10.1016/j.physc.2007.04.159",

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T1 - Distributed injection of transient vortex states in a prism-shaped Bi2Sr2CaCu2O8+δ crystal

AU - Kalisky, B.

AU - Shaulov, A.

AU - Myasoedov, Y.

AU - Zeldov, E.

AU - Tamegai, T.

AU - Yeshurun, Y.

N1 - Funding Information: This research is supported by the Israel Science Foundation (ISF) – Center of Excellence Program (Grant No. 828/05) and the Heinrich Hertz Minerva Center for High Temperature Superconductivity.

PY - 2007/9/1

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N2 - Magneto-optical measurements in Bi2Sr2CaCu2O8+δ demonstrate enhanced effects of transient disordered vortex states (TDVS) in a prism-shaped sample. The existence of such transient states is indicated by the appearance of a sharp change ('break') in the slope of the induction profiles. As the external magnetic field is swept up or down, the break, which signifies the front of the TDVS, moves towards the sample center at a constant velocity determined by the rate of change of the external field. We discuss the results in terms of a competition between injection and annealing processes, the latter being ineffective in the prism due to direct injection of disorder into the bulk through surface barriers distributed along the tilted facets of the prism.

AB - Magneto-optical measurements in Bi2Sr2CaCu2O8+δ demonstrate enhanced effects of transient disordered vortex states (TDVS) in a prism-shaped sample. The existence of such transient states is indicated by the appearance of a sharp change ('break') in the slope of the induction profiles. As the external magnetic field is swept up or down, the break, which signifies the front of the TDVS, moves towards the sample center at a constant velocity determined by the rate of change of the external field. We discuss the results in terms of a competition between injection and annealing processes, the latter being ineffective in the prism due to direct injection of disorder into the bulk through surface barriers distributed along the tilted facets of the prism.

KW - BiSrCaCuO

KW - Metastable vortex states

KW - Surface barriers

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