Quick search Find article
Quick search
Find article

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

H Adachi and R Ikeda

Show affiliations


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.


PACS

74.25.Ha Magnetic properties

74.20.De Phenomenological theories (two-fluid, Ginzburg-Landau, etc.)

74.40.+k Fluctuations (noise, chaos, nonequilibrium superconductivity, localization, etc.)

74.25.Op Mixed states, critical fields, and surface sheaths

Subjects

Superconductivity

Dates

Issue 28 (23 July 2003)

Received 12 November 2002

Published 4 July 2003



View by subject




Export






Please login to access our web services, or create an account if you don't yet have one.

You must have cookies enabled in your web browser to be able to login.

Username
Password

Forgotten your password? Get a new one here.