Imaging of magnetic flux distribution in vicinity of insulating particles in high-T c superconductor by electron holography

Zentaro Akase; Hiroto Kasai; Shuichi Mamishin; Daisuke Shindo; Mitsuru Morita; Akira Tonomura

doi:10.1063/1.3682468

Imaging of magnetic flux distribution in vicinity of insulating particles in high-T _c superconductor by electron holography

Zentaro Akase, Hiroto Kasai, Shuichi Mamishin, Daisuke Shindo, Mitsuru Morita, Akira Tonomura

IMRAM - Division of Measurements

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

6 Citations (Scopus)

Abstract

REBaCuO (RE: rare earth) bulk superconductors, whose microstructures can be controlled by quench and melt growth (QMG) processing, have a high critical current density J _c, which makes them well suited for use in practical applications. Through a combination of electron holography and a focused ion-beam technique, we succeeded in visualizing a fluxon pinned by an insulating particle in a QMG bulk Y-Ba-Cu-O superconductor. We also clarified the magnetic flux distribution in the vicinity of the insulating particles at different temperatures in a uniform external magnetic field.

Original language	English
Article number	033912
Journal	Journal of Applied Physics
Volume	111
Issue number	3
DOIs	https://doi.org/10.1063/1.3682468
Publication status	Published - 2012 Feb 1

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abstract = "REBaCuO (RE: rare earth) bulk superconductors, whose microstructures can be controlled by quench and melt growth (QMG) processing, have a high critical current density J c, which makes them well suited for use in practical applications. Through a combination of electron holography and a focused ion-beam technique, we succeeded in visualizing a fluxon pinned by an insulating particle in a QMG bulk Y-Ba-Cu-O superconductor. We also clarified the magnetic flux distribution in the vicinity of the insulating particles at different temperatures in a uniform external magnetic field.",

author = "Zentaro Akase and Hiroto Kasai and Shuichi Mamishin and Daisuke Shindo and Mitsuru Morita and Akira Tonomura",

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AU - Akase, Zentaro

AU - Kasai, Hiroto

AU - Mamishin, Shuichi

AU - Shindo, Daisuke

AU - Morita, Mitsuru

AU - Tonomura, Akira

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Imaging of magnetic flux distribution in vicinity of insulating particles in high-T _c superconductor by electron holography

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