Observation of inverse domains in high Tc superconductors

Th Schuster; M. R. Koblischka; B. Ludescher; H. Kronmüller

doi:10.1063/1.351712

Observation of inverse domains in high T_c superconductors

Th Schuster, M. R. Koblischka, B. Ludescher, H. Kronmüller

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

27 Citations (Scopus)

Abstract

Nucleation of domains of inverse polarity is observed in the remanent state of high T_c superconductors using the high-resolution Faraday effect (HRF). The remanent state consists of domains with trapped flux and of domains with opposite polarity, separated from each other by an annihilation zone. It is shown that the stray fields of microstructural defects contribute to the nucleation process. Using the capability of the HRF technique to observe dynamic processes, experimental evidence for the different signs of the vortices is given. The influence of the pinning forces on this behavior is also shown.

Original language	English
Pages (from-to)	1478-1485
Number of pages	8
Journal	Journal of Applied Physics
Volume	72
Issue number	4
DOIs	https://doi.org/10.1063/1.351712
Publication status	Published - 1992 Dec 1
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.351712

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AU - Ludescher, B.

AU - Kronmüller, H.

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Y1 - 1992/12/1

N2 - Nucleation of domains of inverse polarity is observed in the remanent state of high Tc superconductors using the high-resolution Faraday effect (HRF). The remanent state consists of domains with trapped flux and of domains with opposite polarity, separated from each other by an annihilation zone. It is shown that the stray fields of microstructural defects contribute to the nucleation process. Using the capability of the HRF technique to observe dynamic processes, experimental evidence for the different signs of the vortices is given. The influence of the pinning forces on this behavior is also shown.

AB - Nucleation of domains of inverse polarity is observed in the remanent state of high Tc superconductors using the high-resolution Faraday effect (HRF). The remanent state consists of domains with trapped flux and of domains with opposite polarity, separated from each other by an annihilation zone. It is shown that the stray fields of microstructural defects contribute to the nucleation process. Using the capability of the HRF technique to observe dynamic processes, experimental evidence for the different signs of the vortices is given. The influence of the pinning forces on this behavior is also shown.

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Observation of inverse domains in high T_c superconductors

Abstract

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