Abstract
The quasiparticle density of states (DOS) in the vortex state has been probed by specific heat measurements under magnetic fields (H) for clean and dirty s-wave superconductors, Y(Ni1 - xPtx)2B2C and Nb1 - xTaxSe2. We find that the quasiparticle DOS per vortex is appreciably H-dependent in the clean-limit superconductors, while it is H-independent in the dirty superconductors as expected from a conventional rigid normal electron core picture. We discuss possible origins for our observations in terms of the shrinking of the vortex core radius with increasing H.
| Original language | English |
|---|---|
| Pages (from-to) | 1078-1081 |
| Number of pages | 4 |
| Journal | journal of the physical society of japan |
| Volume | 68 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Apr 1999 |
| Externally published | Yes |
Keywords
- NbSe
- Quasiparticle density of states
- Vortex state
- YNiBC
ASJC Scopus subject areas
- Physics and Astronomy(all)
Fingerprint Dive into the research topics of 'Quasiparticle Density of States of Clean and Dirty s-Wave Superconductors in the Vortex State'. Together they form a unique fingerprint.
Cite this
Nohara, M., Isshiki, M., Sakai, F., & Takagi, H. (1999). Quasiparticle Density of States of Clean and Dirty s-Wave Superconductors in the Vortex State. journal of the physical society of japan, 68(4), 1078-1081. https://doi.org/10.1143/JPSJ.68.1078