Tracing of the effect of thermal cycling by the thermometric mapping method in Y-Ba-Cu-O superconductors

I. Kirschner, A. C. Bódi, S. Leppävuori, A. Uusimäki, I. Dódony, T. Porjesz

Research output: Contribution to journalArticle

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Abstract

The measurement of the ac susceptibility of high-Tc superconductors submitted to a large temperature gradient provides information on the inhomogeneous and gradual nature of the superconducting-normal (S-N)and normal-superconducting (N-S) transitions. The variation of the gradient applied to the samples represents the essence of the thermometric mapping method (TMM). As a consequence, the borderline between the superconducting and normal states continuously sweeps the whole specimen, resulting in a huge broadening of the transition, and so its nonlinear fine structure can be observed. Since the details of the S-N or N-S transitions change due to the thermal cycling, its effect can be detected by the sensitive TMM. The experimental results reflect the deviations occurring in the behaviour of the samples and consequently in the properties of the gradual transition caused by the thermal cycles. In this way, the TMM is able to trace the effect of thermal cycling on the local superconducting properties of the materials.

Original languageEnglish
Pages (from-to)315-319
Number of pages5
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume178
Issue number3-4
DOIs
Publication statusPublished - Jul 12 1993

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YBCO superconductors
tracing
cycles
temperature gradients
fine structure
magnetic permeability
deviation
gradients

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Tracing of the effect of thermal cycling by the thermometric mapping method in Y-Ba-Cu-O superconductors. / Kirschner, I.; Bódi, A. C.; Leppävuori, S.; Uusimäki, A.; Dódony, I.; Porjesz, T.

In: Physics Letters, Section A: General, Atomic and Solid State Physics, Vol. 178, No. 3-4, 12.07.1993, p. 315-319.

Research output: Contribution to journalArticle

Kirschner, I. ; Bódi, A. C. ; Leppävuori, S. ; Uusimäki, A. ; Dódony, I. ; Porjesz, T. / Tracing of the effect of thermal cycling by the thermometric mapping method in Y-Ba-Cu-O superconductors. In: Physics Letters, Section A: General, Atomic and Solid State Physics. 1993 ; Vol. 178, No. 3-4. pp. 315-319.
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