Observation of flux penetration in YBa2Cu3O7-δ superconductors by means of the magneto-optical Faraday effect

N. Moser; M. R. Koblischka; H. Kronmüller; B. Gegenheimer; H. Theuss

doi:10.1016/0921-4534(89)90112-3

Observation of flux penetration in YBa₂Cu₃O_7-δ superconductors by means of the magneto-optical Faraday effect

N. Moser, M. R. Koblischka, H. Kronmüller, B. Gegenheimer, H. Theuss

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

44 Citations (Scopus)

Abstract

The penetration of the Shubnikov phase into both single-crystal and sintered YBaCuO specimens has been observed by means of the magneto-optical Faraday effect using the high Verdet constant in thin evaporated films of a mixture of EuS and EuF₂. This method allows the direct observation of the flux motion. After cycling magnetic field from zero, the trapped flux structure in the single crystal consists of large domains which are related to the sample shape, whereas in sintered specimens only a part of the total number of the grains transforms into the Shubnikov phase.

Original language	English
Pages (from-to)	117-123
Number of pages	7
Journal	Physica C: Superconductivity and its applications
Volume	159
Issue number	1-2
DOIs	https://doi.org/10.1016/0921-4534(89)90112-3
Publication status	Published - 1989 Jun 1
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/0921-4534(89)90112-3

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abstract = "The penetration of the Shubnikov phase into both single-crystal and sintered YBaCuO specimens has been observed by means of the magneto-optical Faraday effect using the high Verdet constant in thin evaporated films of a mixture of EuS and EuF2. This method allows the direct observation of the flux motion. After cycling magnetic field from zero, the trapped flux structure in the single crystal consists of large domains which are related to the sample shape, whereas in sintered specimens only a part of the total number of the grains transforms into the Shubnikov phase.",

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T1 - Observation of flux penetration in YBa2Cu3O7-δ superconductors by means of the magneto-optical Faraday effect

AU - Moser, N.

AU - Koblischka, M. R.

AU - Kronmüller, H.

AU - Gegenheimer, B.

AU - Theuss, H.

PY - 1989/6/1

Y1 - 1989/6/1

N2 - The penetration of the Shubnikov phase into both single-crystal and sintered YBaCuO specimens has been observed by means of the magneto-optical Faraday effect using the high Verdet constant in thin evaporated films of a mixture of EuS and EuF2. This method allows the direct observation of the flux motion. After cycling magnetic field from zero, the trapped flux structure in the single crystal consists of large domains which are related to the sample shape, whereas in sintered specimens only a part of the total number of the grains transforms into the Shubnikov phase.

AB - The penetration of the Shubnikov phase into both single-crystal and sintered YBaCuO specimens has been observed by means of the magneto-optical Faraday effect using the high Verdet constant in thin evaporated films of a mixture of EuS and EuF2. This method allows the direct observation of the flux motion. After cycling magnetic field from zero, the trapped flux structure in the single crystal consists of large domains which are related to the sample shape, whereas in sintered specimens only a part of the total number of the grains transforms into the Shubnikov phase.

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Observation of flux penetration in YBa₂Cu₃O_7-δ superconductors by means of the magneto-optical Faraday effect

Abstract

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