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Self-Consistent Two-Gap Description of MgB2 Superconductor.
- Source :
- Symmetry (20738994); Aug2019, Vol. 11 Issue 8, p1012-1012, 1p
- Publication Year :
- 2019
-
Abstract
- A self-consistent two-gap γ -model is used to quantitatively describe several thermodynamic properties of MgB 2 superconductor. The superconducting coupling matrix, ν i j , was obtained from the fitting of the superfluid density in the entire superconducting temperature range. Using this input, temperature-dependent superconducting gaps, specific heat, and upper critical fields were calculated with no adjustable parameters and compared with the experimental data as well as with the first-principles calculations. The observed agreement between fit and data shows that γ -model provides adequate quantitative description of the two-gap superconductivity in MgB 2 and may serve as a relatively simple and versatile self-consistent description of the thermodynamic quantities in multi-gap superconductors. [ABSTRACT FROM AUTHOR]
- Subjects :
- SUPERCONDUCTORS
SPECIFIC heat
SUPERCONDUCTIVITY
SUPERFLUIDITY
Subjects
Details
- Language :
- English
- ISSN :
- 20738994
- Volume :
- 11
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- Symmetry (20738994)
- Publication Type :
- Academic Journal
- Accession number :
- 138320432
- Full Text :
- https://doi.org/10.3390/sym11081012