The Study on Surface Critical Magnetic Field of a Layered Magnetic Superconductors

Sumitta Meakniti; Arpapong Changjan; Pongkaew Udomsamuthirun

doi:10.4028/www.scientific.net/AMR.979.224

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 979The Study on Surface Critical Magnetic Field of a...

The Study on Surface Critical Magnetic Field of a Layered Magnetic Superconductors

Abstract:

In this research, we studied the surface critical magnetic field () of a layered magnetic superconductors by Ginzburg-Landau approach. After the 1^st Ginzburg-Landau equation was calculated, a surface critical field was solved by variational method analytically. Our formula obtained was depended on the magnetic property of superconductor. We found that H_c3 of antiferromagnetism and paramagnetism superconductors were shown the same behaviour as non-magnetic superconductors. For diamagnetism and ferromagnetism superconductors, the higher and the lower values of critical magnetic field were found, respectively. However, the H_c3 was strongly depended on the non-linear of magnetic field intend of all kind magnetism.

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Periodical:

Advanced Materials Research (Volume 979)

Pages:

224-227

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.979.224

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Online since:

June 2014

Authors:

Sumitta Meakniti*, Arpapong Changjan, Pongkaew Udomsamuthirun

Keywords:

Ginzburg-Landau Theory, Layered Superconductors, Surface Critical Field

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