Mixed State of a Dirty Two-Band Superconductor: Application to MgB2

Research output: Contribution to journalArticleAcademicpeer-review

112 Citations (Scopus)
11 Downloads (Pure)

Abstract

We investigate the vortex state in a two-band superconductor with strong intraband and weak interband electronic scattering rates. Coupled Usadel equations are solved numerically, and the distributions of the pair potentials and local densities of states are calculated for two bands at different values of magnetic fields. The existence of two distinct length scales corresponding to different bands is demonstrated. The results provide qualitative interpretation of recent scanning tunneling microscopy experiments on vortex structure imaging in MgB2.
Original languageUndefined
Pages (from-to)177002-
Number of pages4
JournalPhysical review letters
Volume90
Issue number17
DOIs
Publication statusPublished - 2003

Keywords

  • IR-40677
  • METIS-213629

Cite this

@article{0f5d7e991ce9425da2b69789878e428a,
title = "Mixed State of a Dirty Two-Band Superconductor: Application to MgB2",
abstract = "We investigate the vortex state in a two-band superconductor with strong intraband and weak interband electronic scattering rates. Coupled Usadel equations are solved numerically, and the distributions of the pair potentials and local densities of states are calculated for two bands at different values of magnetic fields. The existence of two distinct length scales corresponding to different bands is demonstrated. The results provide qualitative interpretation of recent scanning tunneling microscopy experiments on vortex structure imaging in MgB2.",
keywords = "IR-40677, METIS-213629",
author = "A.E. Koshelev and Golubov, {Alexandre Avraamovitch}",
year = "2003",
doi = "10.1103/PhysRevLett.90.177002",
language = "Undefined",
volume = "90",
pages = "177002--",
journal = "Physical review letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "17",

}

Mixed State of a Dirty Two-Band Superconductor: Application to MgB2. / Koshelev, A.E.; Golubov, Alexandre Avraamovitch.

In: Physical review letters, Vol. 90, No. 17, 2003, p. 177002-.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Mixed State of a Dirty Two-Band Superconductor: Application to MgB2

AU - Koshelev, A.E.

AU - Golubov, Alexandre Avraamovitch

PY - 2003

Y1 - 2003

N2 - We investigate the vortex state in a two-band superconductor with strong intraband and weak interband electronic scattering rates. Coupled Usadel equations are solved numerically, and the distributions of the pair potentials and local densities of states are calculated for two bands at different values of magnetic fields. The existence of two distinct length scales corresponding to different bands is demonstrated. The results provide qualitative interpretation of recent scanning tunneling microscopy experiments on vortex structure imaging in MgB2.

AB - We investigate the vortex state in a two-band superconductor with strong intraband and weak interband electronic scattering rates. Coupled Usadel equations are solved numerically, and the distributions of the pair potentials and local densities of states are calculated for two bands at different values of magnetic fields. The existence of two distinct length scales corresponding to different bands is demonstrated. The results provide qualitative interpretation of recent scanning tunneling microscopy experiments on vortex structure imaging in MgB2.

KW - IR-40677

KW - METIS-213629

U2 - 10.1103/PhysRevLett.90.177002

DO - 10.1103/PhysRevLett.90.177002

M3 - Article

VL - 90

SP - 177002-

JO - Physical review letters

JF - Physical review letters

SN - 0031-9007

IS - 17

ER -