301 citations
- ETH ZurichCH28 papers
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- Laboratoire de physique des SolidesFR6 papers
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- Paul Scherrer InstituteCH5 papers
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10 papers · 1 filter
Pearl-Vortex Tunneling in Magic-Angle Twisted Graphene
Marta Perego, Peter Koopmann, Clara Galante Agero +8
Twisted graphene provides a tunable platform for studying superconductivity in two dimensions. In the presence of electric currents and magnetic fields, vortices determine the phen…
Coexistence of superconductivity and itinerant ferromagnetism in Sr0.5Ce0.5FBiS2-xSex (x = 0.5 and 1.0), the first non-U material with Tc < TFM
Gohil S. Thakur, G. Fuchs, K. Nenkov +4
We have carried out detailed magnetic and transport studies of the new Sr0.5Ce0.5FBiS2-xSex (x = 0.5, 1) superconductors derived by doping Se in Sr0.5Ce0.5FBiS2. Se-doping produces…
Interplay between spin density wave and superconductivity in '122' iron pnictides: 57Fe Mössbauer study
A. Blachowski, K. Ruebenbauer, J. Zukrowski +3
Iron-based superconductors Ba0.7Rb0.3Fe2As2 and CaFe1.92Co0.08As2 of the '122' family have been investigated by means of the 14.41-keV Moessbauer transition in 57Fe versus temperat…
Influence of the carbon substitution on the critical current density and AC losses in MgB2 single crystals
M. Ciszek, K. Rogacki, K. Oganisian +2
The DC magnetization and AC complex magnetic susceptibilities were measured for MgB2 single crystals, unsubstituted and carbon substituted with the composition of Mg(B_0.94C_0.06)2…
Observation of Leggett's collective mode in a multi-band MgB2 superconductor
G. Blumberg, A. Mialitsin, B. S. Dennis +3
We report observation of Leggett's collective mode in a multi-band MgB2 superconductor with T_c=39K arising from the fluctuations in the relative phase between two superconducting…
Multi-Gap Superconductivity in MgB2: Magneto-Raman Spectroscopy
G. Blumberg, A. Mialitsin, B. S. Dennis +2
Electronic Raman scattering studies on MgB2 single crystals as a function of excitation and polarization have revealed three distinct superconducting features: a clean gap below 37…