Vortex pinning regimes in YBa<inf>2</inf>Cu<inf>3</inf>O<inf>7-x</inf> bulk boundaries investigated by quantitative magnetic hall microscopy

E. Bartolomé; B. Bozzo; X. Granados; F. Sandiumenge; T. Puig; X. Obradors

doi:10.1088/0953-2048/21/12/125002

Vortex pinning regimes in YBa<inf>2</inf>Cu<inf>3</inf>O<inf>7-x</inf> bulk boundaries investigated by quantitative magnetic hall microscopy

E. Bartolomé, B. Bozzo, X. Granados, F. Sandiumenge, T. Puig, X. Obradors

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

5 Citations (Scopus)

Abstract

Magnetic Hall probe microscopy in combination with an inverse problem solver was used to simultaneously determine the intragranular and intergranular critical current density dependences on the applied field of YBCO melt-textured welds with [001]-misorientation angles from 0° to 30°. This methodology enabled us to investigate the pinning mechanisms of grain boundary vortices, which evolve from Abrikosov vortices (AVs) to Abrikosov-Josephson vortices (AJVs) and then to Josephson vortices (JVs) as the angle increases. We present a magnetic field versus grain boundary angle phase diagram at 77K in which different intergrain vortex motion regimes can be identified. © 2008 IOP Publishing Ltd.

Original language	English
Article number	125002
Journal	Superconductor Science and Technology
Volume	21
Issue number	12
DOIs	https://doi.org/10.1088/0953-2048/21/12/125002
Publication status	Published - 1 Dec 2008

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10.1088/0953-2048/21/12/125002

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title = "Vortex pinning regimes in YBa2Cu3O7-x bulk boundaries investigated by quantitative magnetic hall microscopy",

abstract = "Magnetic Hall probe microscopy in combination with an inverse problem solver was used to simultaneously determine the intragranular and intergranular critical current density dependences on the applied field of YBCO melt-textured welds with [001]-misorientation angles from 0° to 30°. This methodology enabled us to investigate the pinning mechanisms of grain boundary vortices, which evolve from Abrikosov vortices (AVs) to Abrikosov-Josephson vortices (AJVs) and then to Josephson vortices (JVs) as the angle increases. We present a magnetic field versus grain boundary angle phase diagram at 77K in which different intergrain vortex motion regimes can be identified. {\textcopyright} 2008 IOP Publishing Ltd.",

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Vortex pinning regimes in YBa<inf>2</inf>Cu<inf>3</inf>O<inf>7-x</inf> bulk boundaries investigated by quantitative magnetic hall microscopy. / Bartolomé, E.; Bozzo, B.; Granados, X.; Sandiumenge, F.; Puig, T.; Obradors, X.

In: Superconductor Science and Technology, Vol. 21, No. 12, 125002, 01.12.2008.

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

TY - JOUR

T1 - Vortex pinning regimes in YBa2Cu3O7-x bulk boundaries investigated by quantitative magnetic hall microscopy

AU - Bartolomé, E.

AU - Bozzo, B.

AU - Granados, X.

AU - Sandiumenge, F.

AU - Puig, T.

AU - Obradors, X.

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AB - Magnetic Hall probe microscopy in combination with an inverse problem solver was used to simultaneously determine the intragranular and intergranular critical current density dependences on the applied field of YBCO melt-textured welds with [001]-misorientation angles from 0° to 30°. This methodology enabled us to investigate the pinning mechanisms of grain boundary vortices, which evolve from Abrikosov vortices (AVs) to Abrikosov-Josephson vortices (AJVs) and then to Josephson vortices (JVs) as the angle increases. We present a magnetic field versus grain boundary angle phase diagram at 77K in which different intergrain vortex motion regimes can be identified. © 2008 IOP Publishing Ltd.

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