Details

Autor(en) / Beteiligte

• Marcin, Miroslav
• Kačmarčík, Jozef
• Pribulová, Zuzana
• Kopčík, Michal
• Szabó, Pavol
• Šofranko, Ondrej
• Samuely, Tomáš
• Vaňo, Viliam
• Marcenat, Christophe
• Verchenko, Valeriy Yu
• Shevelkov, Andrei V
• Samuely, Peter

Titel

Single-gap superconductivity in Mo 8 Ga 41

Ist Teil von

• Scientific reports, 2019-09, Vol.9 (1), p.13552

Ort / Verlag

England

Erscheinungsjahr

2019

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• In this paper, the potential existence of two-gap superconductivity in Mo Ga is addressed in detail by means of thermodynamic and spectroscopic measurements. A combination of highly sensitive bulk and surface probes, specifically ac-calorimetry and scanning tunneling spectroscopy (STS), are utilized on the same piece of crystal and reveal the presence of only one intrinsic gap in the system featuring strong electron-phonon coupling. Minute traces of additional superconducting phases detected by STS and also in the heat capacity measured in high magnetic fields on a high-quality and seemingly single-phase crystal might mimic the multigap superconductivity of Mo Ga suggested recently in several studies.