# Ginzburg-Landau theory of the upper critical field in layered local-pair superconductors

## Abstract

The upper critical field for coupled layered superconductors with local pairs is analyzed within the mean-field approach for the anisotropic negative-{ital U} Hubbard model. Effects of reduced dimensionality are investigated by solving the Ginzburg-Landau equations to obtain critical fields for different anisotropy ratios. The Harper`s-type system of equations is solved analytically for some special field values. Limitations of Peierls substitution are also discussed.

- Authors:

- Department of Physics, Bilkent University, Bilkent 06533, Ankara (Turkey)

- Publication Date:

- OSTI Identifier:
- 142601

- Resource Type:
- Journal Article

- Journal Name:
- Physical Review, B: Condensed Matter

- Additional Journal Information:
- Journal Volume: 49; Journal Issue: 9; Other Information: PBD: 1 Mar 1994

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 66 PHYSICS; TYPE-II SUPERCONDUCTORS; CRITICAL FIELD; HUBBARD MODEL; GINZBURG-LANDAU THEORY; MEAN-FIELD THEORY; ANALYTICAL SOLUTION; ANISOTROPY

### Citation Formats

```
Gedik, Z.
```*Ginzburg-Landau theory of the upper critical field in layered local-pair superconductors*. United States: N. p., 1994.
Web. doi:10.1103/PhysRevB.49.6372.

```
Gedik, Z.
```*Ginzburg-Landau theory of the upper critical field in layered local-pair superconductors*. United States. doi:10.1103/PhysRevB.49.6372.

```
Gedik, Z. Tue .
"Ginzburg-Landau theory of the upper critical field in layered local-pair superconductors". United States. doi:10.1103/PhysRevB.49.6372.
```

```
@article{osti_142601,
```

title = {Ginzburg-Landau theory of the upper critical field in layered local-pair superconductors},

author = {Gedik, Z.},

abstractNote = {The upper critical field for coupled layered superconductors with local pairs is analyzed within the mean-field approach for the anisotropic negative-{ital U} Hubbard model. Effects of reduced dimensionality are investigated by solving the Ginzburg-Landau equations to obtain critical fields for different anisotropy ratios. The Harper`s-type system of equations is solved analytically for some special field values. Limitations of Peierls substitution are also discussed.},

doi = {10.1103/PhysRevB.49.6372},

journal = {Physical Review, B: Condensed Matter},

number = 9,

volume = 49,

place = {United States},

year = {1994},

month = {3}

}

Other availability

Save to My Library

You must Sign In or Create an Account in order to save documents to your library.