Superconducting fluctuation, localization and electron-electron interaction corrections to the magnetoconductivity in three-dimensional aluminum films

H. Fujiki, Kazumasa Yamada, B. Shinozaki, T. Kawaguti, F. Ichikawa, T. Fukami, T. Aomine

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The magnetoconductivity (MC) of three-dimensional (3D) aluminum films with various dirtiness has been measured in wide ranges of temperature and magnetic field, (1) Near the superconducting transition temperature Tc, the MC takes the minimum at a temperature-independent field Hm0. (2) Above Hm0, MC shows H1/2 dependence. From the detailed analysis of the H dependence of MC, it has been found that the magnitude of the coefficient of H1/2 can be explained qualitatively by only the sum of contribution from the weak localization and electron-electron interaction. This experimental result indicates that the superconducting thermal fluctuation effect in the field is almost suppressed by this finite field Hm0, of which values are about two times as large as that of the mean-field upper critical field Hc2(0) as we reported for 2D aluminum films. This circumstance is consistent with the observation of a rapid suppression of the excess conductivity around 2Ac2(0) for 3D type II superconductors by Lue et al. [J.W. Lue, A.G. Montgomery, R.E. Hake, Phys. Rev. B 11 (1975) 3393].

Original languageEnglish
Pages (from-to)58-64
Number of pages7
JournalPhysica C: Superconductivity and its applications
Volume311
Issue number1-2
DOIs
Publication statusPublished - Jan 1 1999

Fingerprint

Electron-electron interactions
Aluminum
electron scattering
aluminum
Superconducting materials
Superconducting transition temperature
Temperature distribution
temperature distribution
electrons
transition temperature
retarding
Magnetic fields
conductivity
coefficients
magnetic fields
Temperature
temperature
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Superconducting fluctuation, localization and electron-electron interaction corrections to the magnetoconductivity in three-dimensional aluminum films. / Fujiki, H.; Yamada, Kazumasa; Shinozaki, B.; Kawaguti, T.; Ichikawa, F.; Fukami, T.; Aomine, T.

In: Physica C: Superconductivity and its applications, Vol. 311, No. 1-2, 01.01.1999, p. 58-64.

Research output: Contribution to journalArticle

@article{729fb1c5e754400a8a4580fa9bd8ba41,
title = "Superconducting fluctuation, localization and electron-electron interaction corrections to the magnetoconductivity in three-dimensional aluminum films",
abstract = "The magnetoconductivity (MC) of three-dimensional (3D) aluminum films with various dirtiness has been measured in wide ranges of temperature and magnetic field, (1) Near the superconducting transition temperature Tc, the MC takes the minimum at a temperature-independent field Hm0. (2) Above Hm0, MC shows H1/2 dependence. From the detailed analysis of the H dependence of MC, it has been found that the magnitude of the coefficient of H1/2 can be explained qualitatively by only the sum of contribution from the weak localization and electron-electron interaction. This experimental result indicates that the superconducting thermal fluctuation effect in the field is almost suppressed by this finite field Hm0, of which values are about two times as large as that of the mean-field upper critical field Hc2(0) as we reported for 2D aluminum films. This circumstance is consistent with the observation of a rapid suppression of the excess conductivity around 2Ac2(0) for 3D type II superconductors by Lue et al. [J.W. Lue, A.G. Montgomery, R.E. Hake, Phys. Rev. B 11 (1975) 3393].",
author = "H. Fujiki and Kazumasa Yamada and B. Shinozaki and T. Kawaguti and F. Ichikawa and T. Fukami and T. Aomine",
year = "1999",
month = "1",
day = "1",
doi = "10.1016/S0921-4534(98)00630-3",
language = "English",
volume = "311",
pages = "58--64",
journal = "Physica C: Superconductivity and its Applications",
issn = "0921-4534",
publisher = "Elsevier",
number = "1-2",

}

TY - JOUR

T1 - Superconducting fluctuation, localization and electron-electron interaction corrections to the magnetoconductivity in three-dimensional aluminum films

AU - Fujiki, H.

AU - Yamada, Kazumasa

AU - Shinozaki, B.

AU - Kawaguti, T.

AU - Ichikawa, F.

AU - Fukami, T.

AU - Aomine, T.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - The magnetoconductivity (MC) of three-dimensional (3D) aluminum films with various dirtiness has been measured in wide ranges of temperature and magnetic field, (1) Near the superconducting transition temperature Tc, the MC takes the minimum at a temperature-independent field Hm0. (2) Above Hm0, MC shows H1/2 dependence. From the detailed analysis of the H dependence of MC, it has been found that the magnitude of the coefficient of H1/2 can be explained qualitatively by only the sum of contribution from the weak localization and electron-electron interaction. This experimental result indicates that the superconducting thermal fluctuation effect in the field is almost suppressed by this finite field Hm0, of which values are about two times as large as that of the mean-field upper critical field Hc2(0) as we reported for 2D aluminum films. This circumstance is consistent with the observation of a rapid suppression of the excess conductivity around 2Ac2(0) for 3D type II superconductors by Lue et al. [J.W. Lue, A.G. Montgomery, R.E. Hake, Phys. Rev. B 11 (1975) 3393].

AB - The magnetoconductivity (MC) of three-dimensional (3D) aluminum films with various dirtiness has been measured in wide ranges of temperature and magnetic field, (1) Near the superconducting transition temperature Tc, the MC takes the minimum at a temperature-independent field Hm0. (2) Above Hm0, MC shows H1/2 dependence. From the detailed analysis of the H dependence of MC, it has been found that the magnitude of the coefficient of H1/2 can be explained qualitatively by only the sum of contribution from the weak localization and electron-electron interaction. This experimental result indicates that the superconducting thermal fluctuation effect in the field is almost suppressed by this finite field Hm0, of which values are about two times as large as that of the mean-field upper critical field Hc2(0) as we reported for 2D aluminum films. This circumstance is consistent with the observation of a rapid suppression of the excess conductivity around 2Ac2(0) for 3D type II superconductors by Lue et al. [J.W. Lue, A.G. Montgomery, R.E. Hake, Phys. Rev. B 11 (1975) 3393].

UR - http://www.scopus.com/inward/record.url?scp=9344245166&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=9344245166&partnerID=8YFLogxK

U2 - 10.1016/S0921-4534(98)00630-3

DO - 10.1016/S0921-4534(98)00630-3

M3 - Article

AN - SCOPUS:9344245166

VL - 311

SP - 58

EP - 64

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - 1-2

ER -