SciPost Submission Page
Anisotropic two-band $\alpha$-model and its application to layered chalcogenide superconductor NbSe2
by Jiang-Ning Zhang , Guo Wang , Tian-Yi Han, Hai Huang
Submission summary
Authors (as registered SciPost users): | Tianyi Han |
Submission information | |
---|---|
Preprint Link: | scipost_202412_00031v1 (pdf) |
Date submitted: | 2024-12-17 15:47 |
Submitted by: | Han, Tianyi |
Submitted to: | SciPost Physics |
Ontological classification | |
---|---|
Academic field: | Physics |
Specialties: |
|
Approaches: | Theoretical, Phenomenological |
Abstract
The generalized $\alpha$-model for anisotropic two-band superconductivity is consistently constructed with the consideration of weak interband electron-electron interaction. Tailored from the two-band BCS theory, the developed framework can be applied to investigate thermodynamic properties of intraband strong-coupling superconductors. Accordingly, we perform a calculation on the temperature dependence of specific heat and obtain an analytic expression for specific heat jump at the superconducting critical temperature. Given the low-temperature superconducting gaps from experimental measurement, all of our theoretical results can fit the specific heat data of the layered two-band superconductor NbSe2 well.
Author indications on fulfilling journal expectations
- Provide a novel and synergetic link between different research areas.
- Open a new pathway in an existing or a new research direction, with clear potential for multi-pronged follow-up work
- Detail a groundbreaking theoretical/experimental/computational discovery
- Present a breakthrough on a previously-identified and long-standing research stumbling block
Current status:
In refereeing