Experimental evidence for a first-order vortex-lattice-melting transition in untwinned, single crystal YBa2Cu3O7

H. Safar; P. L. Gammel; D. A. Huse; D. J. Bishop; J. P. Rice; D. M. Ginsberg

doi:10.1103/PhysRevLett.69.824

Experimental evidence for a first-order vortex-lattice-melting transition in untwinned, single crystal YBa2Cu3O7

H. Safar, P. L. Gammel, D. A. Huse, D. J. Bishop, J. P. Rice, D. M. Ginsberg

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

589 Scopus citations

Abstract

We report on current-voltage measurements in clean, untwinned YBa2Cu3O7 single crystals with picovolt voltage sensitivity and millikelvin temperature resolution in magnetic fields ranging up to 7 T. We find evidence for a melting transition in the vortex lattice which is hysteretic in both temperature and magnetic field. The measured thermal and magnetic hysteresis widths are related by the local slope of the phase boundary. This strongly supports the picture that, in the clean limit, the melting transition of the Abrikosov vortex lattice is a first-order phase transition.

Original language	English (US)
Pages (from-to)	824-827
Number of pages	4
Journal	Physical review letters
Volume	69
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevLett.69.824
State	Published - 1992
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.69.824

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title = "Experimental evidence for a first-order vortex-lattice-melting transition in untwinned, single crystal YBa2Cu3O7",

abstract = "We report on current-voltage measurements in clean, untwinned YBa2Cu3O7 single crystals with picovolt voltage sensitivity and millikelvin temperature resolution in magnetic fields ranging up to 7 T. We find evidence for a melting transition in the vortex lattice which is hysteretic in both temperature and magnetic field. The measured thermal and magnetic hysteresis widths are related by the local slope of the phase boundary. This strongly supports the picture that, in the clean limit, the melting transition of the Abrikosov vortex lattice is a first-order phase transition.",

author = "H. Safar and Gammel, {P. L.} and Huse, {D. A.} and Bishop, {D. J.} and Rice, {J. P.} and Ginsberg, {D. M.}",

year = "1992",

doi = "10.1103/PhysRevLett.69.824",

language = "English (US)",

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T1 - Experimental evidence for a first-order vortex-lattice-melting transition in untwinned, single crystal YBa2Cu3O7

AU - Safar, H.

AU - Gammel, P. L.

AU - Huse, D. A.

AU - Bishop, D. J.

AU - Rice, J. P.

AU - Ginsberg, D. M.

PY - 1992

Y1 - 1992

N2 - We report on current-voltage measurements in clean, untwinned YBa2Cu3O7 single crystals with picovolt voltage sensitivity and millikelvin temperature resolution in magnetic fields ranging up to 7 T. We find evidence for a melting transition in the vortex lattice which is hysteretic in both temperature and magnetic field. The measured thermal and magnetic hysteresis widths are related by the local slope of the phase boundary. This strongly supports the picture that, in the clean limit, the melting transition of the Abrikosov vortex lattice is a first-order phase transition.

AB - We report on current-voltage measurements in clean, untwinned YBa2Cu3O7 single crystals with picovolt voltage sensitivity and millikelvin temperature resolution in magnetic fields ranging up to 7 T. We find evidence for a melting transition in the vortex lattice which is hysteretic in both temperature and magnetic field. The measured thermal and magnetic hysteresis widths are related by the local slope of the phase boundary. This strongly supports the picture that, in the clean limit, the melting transition of the Abrikosov vortex lattice is a first-order phase transition.

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JO - Physical review letters

JF - Physical review letters

IS - 5

ER -

Experimental evidence for a first-order vortex-lattice-melting transition in untwinned, single crystal YBa2Cu3O7

Abstract

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