Ginzburg-Landau functional for type-II superconductors with Pauli paramagnetic effect

Hiroto Adachi, R. Ikeda

Research output: Contribution to journalArticle

Abstract

Effects of Pauli paramagnetism on type-II superconductivity are examined through a derivation of a Ginzburg-Landau (GL) functional by including the field-induced pair-breaking effects through the spin and orbital on an equal footing. On the basis of the resultant GL functional we discuss the corresponding high-field vortex phase diagram at the level of mean field approximation. Special attention is paid to the mutuality of characteristic temperatures, i.e., the temperatures: (1) at which the vortex state is described in terms of higher Landau levels; (2) at which a vortex state modulated along the field direction (a Fulde-Ferrell-Larkin-Ovchinnikov-like state) becomes stable; and (3) at which a superconducting transition becomes nearly discontinuous.

Original languageEnglish
JournalJournal of Physics Condensed Matter
Volume15
Issue number28
DOIs
Publication statusPublished - Jul 23 2003
Externally publishedYes

Fingerprint

Superconducting materials
Vortex flow
vortices
Paramagnetism
paramagnetism
Superconductivity
Phase diagrams
superconductivity
derivation
phase diagrams
orbitals
Temperature
temperature
approximation
Direction compound

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Ginzburg-Landau functional for type-II superconductors with Pauli paramagnetic effect. / Adachi, Hiroto; Ikeda, R.

In: Journal of Physics Condensed Matter, Vol. 15, No. 28, 23.07.2003.

Research output: Contribution to journalArticle

@article{a0cf6d7fad08418b8e5b5ec4d4cac893,
title = "Ginzburg-Landau functional for type-II superconductors with Pauli paramagnetic effect",
abstract = "Effects of Pauli paramagnetism on type-II superconductivity are examined through a derivation of a Ginzburg-Landau (GL) functional by including the field-induced pair-breaking effects through the spin and orbital on an equal footing. On the basis of the resultant GL functional we discuss the corresponding high-field vortex phase diagram at the level of mean field approximation. Special attention is paid to the mutuality of characteristic temperatures, i.e., the temperatures: (1) at which the vortex state is described in terms of higher Landau levels; (2) at which a vortex state modulated along the field direction (a Fulde-Ferrell-Larkin-Ovchinnikov-like state) becomes stable; and (3) at which a superconducting transition becomes nearly discontinuous.",
author = "Hiroto Adachi and R. Ikeda",
year = "2003",
month = "7",
day = "23",
doi = "10.1088/0953-8984/15/28/356",
language = "English",
volume = "15",
journal = "Journal of Physics Condensed Matter",
issn = "0953-8984",
publisher = "IOP Publishing Ltd.",
number = "28",

}

TY - JOUR

T1 - Ginzburg-Landau functional for type-II superconductors with Pauli paramagnetic effect

AU - Adachi, Hiroto

AU - Ikeda, R.

PY - 2003/7/23

Y1 - 2003/7/23

N2 - Effects of Pauli paramagnetism on type-II superconductivity are examined through a derivation of a Ginzburg-Landau (GL) functional by including the field-induced pair-breaking effects through the spin and orbital on an equal footing. On the basis of the resultant GL functional we discuss the corresponding high-field vortex phase diagram at the level of mean field approximation. Special attention is paid to the mutuality of characteristic temperatures, i.e., the temperatures: (1) at which the vortex state is described in terms of higher Landau levels; (2) at which a vortex state modulated along the field direction (a Fulde-Ferrell-Larkin-Ovchinnikov-like state) becomes stable; and (3) at which a superconducting transition becomes nearly discontinuous.

AB - Effects of Pauli paramagnetism on type-II superconductivity are examined through a derivation of a Ginzburg-Landau (GL) functional by including the field-induced pair-breaking effects through the spin and orbital on an equal footing. On the basis of the resultant GL functional we discuss the corresponding high-field vortex phase diagram at the level of mean field approximation. Special attention is paid to the mutuality of characteristic temperatures, i.e., the temperatures: (1) at which the vortex state is described in terms of higher Landau levels; (2) at which a vortex state modulated along the field direction (a Fulde-Ferrell-Larkin-Ovchinnikov-like state) becomes stable; and (3) at which a superconducting transition becomes nearly discontinuous.

UR - http://www.scopus.com/inward/record.url?scp=0042173069&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0042173069&partnerID=8YFLogxK

U2 - 10.1088/0953-8984/15/28/356

DO - 10.1088/0953-8984/15/28/356

M3 - Article

AN - SCOPUS:0042173069

VL - 15

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

SN - 0953-8984

IS - 28

ER -