Publication:
Investigation of the effect of high pressure on the superfluid density of H3S, LaH10, and CaAlSi superconductors

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Issued Date

2023

Resource Type

Article

File Type

application/pdf

DOI

10.1016/j.physc.2023.1354297

Rights Holder(s)

Scopus

Bibliographic Citation

Physica C: Superconductivity and its Applications. Vol 611, No. (2023)

Suggested Citation

Chanilkul G., Changjan A., Udomsamuthirun P. Investigation of the effect of high pressure on the superfluid density of H3S, LaH10, and CaAlSi superconductors. Physica C: Superconductivity and its Applications. Vol 611, No. (2023). doi:10.1016/j.physc.2023.1354297 Retrieved from: https://hdl.handle.net/20.500.14740/11891

Title

Investigation of the effect of high pressure on the superfluid density of H3S, LaH10, and CaAlSi superconductors

Author(s)

Chanilkul G.
 Changjan A.
 Udomsamuthirun P.

Other Contributor(s)

Srinakharinwirot University

Abstract

This study investigated the gap-to-Tc ratios and superfluid density of anisotropic s-wave superconductors under external pressure using the BCS theory and the semiclassical approach. The gap-to-Tc ratio and superfluid density were developed based on our pressure parameter assumptions to describe the anisotropic s-wave in CaAlSi and the isotropic s-wave in H3S and LaH10 superconductors. The gap-to-Tc ratios were calculated, and the results showed that H3S, LaH10, and CaAlSi were 3.72, 3.68, and 3.53, respectively. The differences of superfluid densities between the baseline and variations in pressure parameters reach their maximum at T/Tc ≈ 0.7, approximately. Finally, we can conclude that the BCS theory and semiclassical approach can account for describe the behaviour of H3S, LaH10 and CaAlSi superconductors under high pressure. © 2023

Subject(s)

Anisotropic superconductors
 Hydride superconductors
 Pressure effect
 Superfluid density

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URI

https://hdl.handle.net/20.500.14740/11891

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Scopus: Year 2023

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