Study of vortex configuration in the mixed state of a-W/Si multilayers

Ryuta Honma; Yoshinori Kuwasawa; Kazunuki Yamamoto; Tsutomu Nojima

doi:10.1016/S0921-4534(02)02654-0

Study of vortex configuration in the mixed state of a-W/Si multilayers

Ryuta Honma, Yoshinori Kuwasawa, Kazunuki Yamamoto, Tsutomu Nojima

Institute for Materials Research (IMR)

Research output: Contribution to journal › Conference article › peer-review

Abstract

Configuration of vortices in highly tilted fields have been studied on amorphous W/Si multilayers with strong (3D) and weak (quasi-2D) layer coupling through the simultaneous measurements of electric fields in the film plane, E_x and E_y, as a function of current density J, where x∥J. We observe in the 3D sample the vortices move as the tilted lines around the glass transition and gradually change the configuration to the kinked lines with decreasing temperature. In the quasi-2D sample, only the dynamics of 2D pancake vortices has been observed at low J.

Original language	English
Pages (from-to)	781-782
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	388-389
DOIs	https://doi.org/10.1016/S0921-4534(02)02654-0
Publication status	Published - 2003 May 1
Event	proceedings of the 23rd international conference on low temper - Hiroshima, Japan Duration: 2002 Aug 20 → 2002 Aug 27

Keywords

Crossing lattice
Current-voltage characteristics
Vortex line configuration
W/Si multilayer

ASJC Scopus subject areas

Condensed Matter Physics

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title = "Study of vortex configuration in the mixed state of a-W/Si multilayers",

abstract = "Configuration of vortices in highly tilted fields have been studied on amorphous W/Si multilayers with strong (3D) and weak (quasi-2D) layer coupling through the simultaneous measurements of electric fields in the film plane, Ex and Ey, as a function of current density J, where x∥J. We observe in the 3D sample the vortices move as the tilted lines around the glass transition and gradually change the configuration to the kinked lines with decreasing temperature. In the quasi-2D sample, only the dynamics of 2D pancake vortices has been observed at low J.",

keywords = "Crossing lattice, Current-voltage characteristics, Vortex line configuration, W/Si multilayer",

author = "Ryuta Honma and Yoshinori Kuwasawa and Kazunuki Yamamoto and Tsutomu Nojima",

year = "2003",

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doi = "10.1016/S0921-4534(02)02654-0",

language = "English",

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pages = "781--782",

journal = "Physica C: Superconductivity and its Applications",

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note = "proceedings of the 23rd international conference on low temper ; Conference date: 20-08-2002 Through 27-08-2002",

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TY - JOUR

T1 - Study of vortex configuration in the mixed state of a-W/Si multilayers

AU - Honma, Ryuta

AU - Kuwasawa, Yoshinori

AU - Yamamoto, Kazunuki

AU - Nojima, Tsutomu

PY - 2003/5/1

Y1 - 2003/5/1

N2 - Configuration of vortices in highly tilted fields have been studied on amorphous W/Si multilayers with strong (3D) and weak (quasi-2D) layer coupling through the simultaneous measurements of electric fields in the film plane, Ex and Ey, as a function of current density J, where x∥J. We observe in the 3D sample the vortices move as the tilted lines around the glass transition and gradually change the configuration to the kinked lines with decreasing temperature. In the quasi-2D sample, only the dynamics of 2D pancake vortices has been observed at low J.

AB - Configuration of vortices in highly tilted fields have been studied on amorphous W/Si multilayers with strong (3D) and weak (quasi-2D) layer coupling through the simultaneous measurements of electric fields in the film plane, Ex and Ey, as a function of current density J, where x∥J. We observe in the 3D sample the vortices move as the tilted lines around the glass transition and gradually change the configuration to the kinked lines with decreasing temperature. In the quasi-2D sample, only the dynamics of 2D pancake vortices has been observed at low J.

KW - Crossing lattice

KW - Current-voltage characteristics

KW - Vortex line configuration

KW - W/Si multilayer

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DO - 10.1016/S0921-4534(02)02654-0

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JO - Physica C: Superconductivity and its Applications

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