Evidence of thermal nucleation of two-dimensional point vortices in single-crystal Nd1.85Ce0.15Cu2O4-y superconductors

Fulin Zuo, S. Khizroev, Xiuguang Jiang, J. L. Peng, R. L. Greene

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Abstract

We report detailed magnetic measurements in H parallel to the c-axis direction on a single crystal of Nd1.85Ce0.15Cu2O4-y. The magnetization data indicate that the entrance field is determined by surface barriers. At low temperatures, the penetration field Hp(T) can be fit with Hp=Hcexp(-T/T0); at temperature close to Tc, Hp(T) is linear in T. The date can be qualitatively understood by a model where two-dimensional point vortices are thermally nucleated near the surface in weakly coupled layered superconductors.

Original languageEnglish (US)
Pages (from-to)12326-12329
Number of pages4
JournalPhysical Review B
Volume49
Issue number17
DOIs
StatePublished - Jan 1 1994

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nucleation
vortices
single crystals
two dimensional models
entrances
magnetic measurement
penetration
magnetization
temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

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Evidence of thermal nucleation of two-dimensional point vortices in single-crystal Nd1.85Ce0.15Cu2O4-y superconductors. / Zuo, Fulin; Khizroev, S.; Jiang, Xiuguang; Peng, J. L.; Greene, R. L.

In: Physical Review B, Vol. 49, No. 17, 01.01.1994, p. 12326-12329.

Research output: Contribution to journalArticle

Zuo, Fulin ; Khizroev, S. ; Jiang, Xiuguang ; Peng, J. L. ; Greene, R. L. / Evidence of thermal nucleation of two-dimensional point vortices in single-crystal Nd1.85Ce0.15Cu2O4-y superconductors. In: Physical Review B. 1994 ; Vol. 49, No. 17. pp. 12326-12329.
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