Anisotropic s-wave superconductivity in CaAlSi single crystals from penetration depth measurements
Ruslan Prozorov, Tyson A. Olheiser, Russell W. Giannetta, Kentaro Uozato, Tsuyoshi Tamegai
DOI 10.1103/PhysRevB.73.184523 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
In- and out-of-plane London penetration depths were measured in CaAlSi single crystals (Tc=6.2 and 7.3K) using a tunnel-diode resonator. A full three-dimensional (3D) BCS analysis of the superfluid density is consistent with a prolate spheroidal gap, with a weak-coupling BCS value in the ab plane and stronger coupling along the c axis. The gap anisotropy was found to significantly decrease for higher Tc samples.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| CaAlSi Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 6.2 | Pressure not reported | unknown |
| CaAlSi Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7.3 | Pressure not reported | unknown |
| MgB2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 39 | Pressure not reported | unknown |
Similar papers
Electronic and structural properties of superconducting MgB2, CaSi2, and related compounds
similarity 0.97G. Satta et al.
Source status unknown — claims are unverified
Anisotropic s-wave superconductivity in MgB2
similarity 0.97Stephan Haas & Kazumi Maki
Source status unknown — claims are unverified
Electrical transport and anisotropic superconducting properties in single crystalline and dense polycrystalline MgB2
similarity 0.96A. K. Pradhan et al.
Source status unknown — claims are unverified
Superconducting energy gap from break-junction tunneling spectroscopy in the ternary silicide CaAlSi
similarity 0.96S. Kuroiwa et al.
Source status unknown — claims are unverified
Correlation between crystal structures of CaAlSi with and without superlattice and superconducting properties
similarity 0.96S. Kuroiwa et al.
Source status unknown — claims are unverified
Multiband s-wave topological superconductors: Role of dimensionality and magnetic field response
similarity 0.96Shusa Deng et al.
Source status unknown — claims are unverified