Thermal state of superconducting films on wide substrates

V. Sokolovsky; V. Meerovich

doi:10.1016/j.cryogenics.2006.12.002

Thermal state of superconducting films on wide substrates

V. Sokolovsky, V. Meerovich

Department of Physics

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

2 Scopus citations

Abstract

The stationary thermal state of a long superconducting film on a wide substrate is analyzed analytically. Expressions describing voltage-current characteristics and temperature-current dependence of the film are derived for the flux creep, flux flow and normal regimes. It is shown how the flux creep influences the conditions of the thermal stability. In particular, it is found that the bistability of the thermal state can appear in this regime. Under the boiling crisis, the temperature-current dependence for a film differs markedly from that for a wire and is characterized by a smooth temperature increase with the current. A "mixed" regime is analyzed where the flux flow and normal states exist simultaneously with the boundary between them parallel to the film axis.

Original language	English
Pages (from-to)	189-197
Number of pages	9
Journal	Cryogenics
Volume	47
Issue number	3
DOIs	https://doi.org/10.1016/j.cryogenics.2006.12.002
State	Published - 1 Mar 2007

Keywords

Films
Stability
Superconductors

ASJC Scopus subject areas

General Materials Science
General Physics and Astronomy

Access to Document

10.1016/j.cryogenics.2006.12.002

Cite this

@article{b605cbeac3de4fe8839ddc30eaed9614,

title = "Thermal state of superconducting films on wide substrates",

abstract = "The stationary thermal state of a long superconducting film on a wide substrate is analyzed analytically. Expressions describing voltage-current characteristics and temperature-current dependence of the film are derived for the flux creep, flux flow and normal regimes. It is shown how the flux creep influences the conditions of the thermal stability. In particular, it is found that the bistability of the thermal state can appear in this regime. Under the boiling crisis, the temperature-current dependence for a film differs markedly from that for a wire and is characterized by a smooth temperature increase with the current. A {"}mixed{"} regime is analyzed where the flux flow and normal states exist simultaneously with the boundary between them parallel to the film axis.",

keywords = "Films, Stability, Superconductors",

author = "V. Sokolovsky and V. Meerovich",

year = "2007",

month = mar,

day = "1",

doi = "10.1016/j.cryogenics.2006.12.002",

language = "English",

volume = "47",

pages = "189--197",

journal = "Cryogenics",

issn = "0011-2275",

publisher = "Elsevier Ltd.",

number = "3",

}

TY - JOUR

T1 - Thermal state of superconducting films on wide substrates

AU - Sokolovsky, V.

AU - Meerovich, V.

PY - 2007/3/1

Y1 - 2007/3/1

N2 - The stationary thermal state of a long superconducting film on a wide substrate is analyzed analytically. Expressions describing voltage-current characteristics and temperature-current dependence of the film are derived for the flux creep, flux flow and normal regimes. It is shown how the flux creep influences the conditions of the thermal stability. In particular, it is found that the bistability of the thermal state can appear in this regime. Under the boiling crisis, the temperature-current dependence for a film differs markedly from that for a wire and is characterized by a smooth temperature increase with the current. A "mixed" regime is analyzed where the flux flow and normal states exist simultaneously with the boundary between them parallel to the film axis.

AB - The stationary thermal state of a long superconducting film on a wide substrate is analyzed analytically. Expressions describing voltage-current characteristics and temperature-current dependence of the film are derived for the flux creep, flux flow and normal regimes. It is shown how the flux creep influences the conditions of the thermal stability. In particular, it is found that the bistability of the thermal state can appear in this regime. Under the boiling crisis, the temperature-current dependence for a film differs markedly from that for a wire and is characterized by a smooth temperature increase with the current. A "mixed" regime is analyzed where the flux flow and normal states exist simultaneously with the boundary between them parallel to the film axis.

KW - Films

KW - Stability

KW - Superconductors

UR - http://www.scopus.com/inward/record.url?scp=33847648517&partnerID=8YFLogxK

U2 - 10.1016/j.cryogenics.2006.12.002

DO - 10.1016/j.cryogenics.2006.12.002

M3 - Article

AN - SCOPUS:33847648517

SN - 0011-2275

VL - 47

SP - 189

EP - 197

JO - Cryogenics

JF - Cryogenics

IS - 3

ER -

Thermal state of superconducting films on wide substrates

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this