Anisotropy of critical current density in superconducting networks

Y. Tsuchiya; Y. Nakajima; T. Tamegai; S. Nagasawa; M. Hidaka

doi:10.1016/j.physc.2012.03.046

Anisotropy of critical current density in superconducting networks

Y. Tsuchiya, Y. Nakajima, T. Tamegai, S. Nagasawa, M. Hidaka

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

Abstract

We have fabricated Nb square superconducting networks and measured critical current density with current flowing along the direction of 0° and 45° tilted from the lattice of the networks. The temperature and magnetic field dependences of the critical current density for both directions are measured and compared with the flux penetration pattern in those samples. It is found that the anisotropy of the critical current density reflects the flux penetration pattern in the superconducting network samples. Near T_c at zero field, anomalous enhancements of voltage for 0° are observed.

Original language	English
Pages (from-to)	91-93
Number of pages	3
Journal	Physica C: Superconductivity and its applications
Volume	484
DOIs	https://doi.org/10.1016/j.physc.2012.03.046
Publication status	Published - 2013 Jan 15
Externally published	Yes

Keywords

Critical current density
Flux flow
Superconducting network
Vortex pinning

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/j.physc.2012.03.046

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title = "Anisotropy of critical current density in superconducting networks",

abstract = "We have fabricated Nb square superconducting networks and measured critical current density with current flowing along the direction of 0° and 45° tilted from the lattice of the networks. The temperature and magnetic field dependences of the critical current density for both directions are measured and compared with the flux penetration pattern in those samples. It is found that the anisotropy of the critical current density reflects the flux penetration pattern in the superconducting network samples. Near Tc at zero field, anomalous enhancements of voltage for 0° are observed.",

keywords = "Critical current density, Flux flow, Superconducting network, Vortex pinning",

author = "Y. Tsuchiya and Y. Nakajima and T. Tamegai and S. Nagasawa and M. Hidaka",

year = "2013",

month = jan,

day = "15",

doi = "10.1016/j.physc.2012.03.046",

language = "English",

volume = "484",

pages = "91--93",

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

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TY - JOUR

T1 - Anisotropy of critical current density in superconducting networks

AU - Tsuchiya, Y.

AU - Nakajima, Y.

AU - Tamegai, T.

AU - Nagasawa, S.

AU - Hidaka, M.

PY - 2013/1/15

Y1 - 2013/1/15

N2 - We have fabricated Nb square superconducting networks and measured critical current density with current flowing along the direction of 0° and 45° tilted from the lattice of the networks. The temperature and magnetic field dependences of the critical current density for both directions are measured and compared with the flux penetration pattern in those samples. It is found that the anisotropy of the critical current density reflects the flux penetration pattern in the superconducting network samples. Near Tc at zero field, anomalous enhancements of voltage for 0° are observed.

AB - We have fabricated Nb square superconducting networks and measured critical current density with current flowing along the direction of 0° and 45° tilted from the lattice of the networks. The temperature and magnetic field dependences of the critical current density for both directions are measured and compared with the flux penetration pattern in those samples. It is found that the anisotropy of the critical current density reflects the flux penetration pattern in the superconducting network samples. Near Tc at zero field, anomalous enhancements of voltage for 0° are observed.

KW - Critical current density

KW - Flux flow

KW - Superconducting network

KW - Vortex pinning

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DO - 10.1016/j.physc.2012.03.046

M3 - Article

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SN - 0921-4534

VL - 484

SP - 91

EP - 93

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

ER -

Anisotropy of critical current density in superconducting networks

Abstract

Keywords

ASJC Scopus subject areas

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