Fermi surface topology and vortex state in MgB2

Dahm T, Graser S, Schopohl N (2004)
Physica C Superconductivity 408-410: 336-337.

Journal Article | Published | English

No fulltext has been uploaded

Author
; ;
Abstract
Based on a detailed modeling of the Fermi surface topology of MgB2 we calculated the anisotropy of the upper critical field B-c2 within the two gap model. The sigma-band is modeled as a distorted cylinder and the pi-band as a half-torus, with parameters determined from bandstructure calculations. Our results show that the unusual strong temperature dependence of the B-c2 anisotropy, that has been observed recently, can be understood due to the small c-axis dispersion of the cylindrical Fermi surface sheets and the small interband pairing interaction as obtained from bandstructure calculations. We calculate the magnetic field dependence of the density of states within the vortex state for field in C-axis direction and compare with recent measurements of the specific heat on MgB2 single crystals. (C) 2004 Elsevier B.V. All rights reserved.
Publishing Year
ISSN
PUB-ID

Cite this

Dahm T, Graser S, Schopohl N. Fermi surface topology and vortex state in MgB2. Physica C Superconductivity. 2004;408-410:336-337.
Dahm, T., Graser, S., & Schopohl, N. (2004). Fermi surface topology and vortex state in MgB2. Physica C Superconductivity, 408-410, 336-337.
Dahm, T., Graser, S., and Schopohl, N. (2004). Fermi surface topology and vortex state in MgB2. Physica C Superconductivity 408-410, 336-337.
Dahm, T., Graser, S., & Schopohl, N., 2004. Fermi surface topology and vortex state in MgB2. Physica C Superconductivity, 408-410, p 336-337.
T. Dahm, S. Graser, and N. Schopohl, “Fermi surface topology and vortex state in MgB2”, Physica C Superconductivity, vol. 408-410, 2004, pp. 336-337.
Dahm, T., Graser, S., Schopohl, N.: Fermi surface topology and vortex state in MgB2. Physica C Superconductivity. 408-410, 336-337 (2004).
Dahm, Thomas, Graser, S, and Schopohl, N. “Fermi surface topology and vortex state in MgB2”. Physica C Superconductivity 408-410 (2004): 336-337.
This data publication is cited in the following publications:
This publication cites the following data publications:

Export

0 Marked Publications

Open Data PUB

Web of Science

View record in Web of Science®

Search this title in

Google Scholar