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Weyl nodes close to the Fermi energy in NbAs
M. Naumann, F. Arnold, Z. Medvecka +10
The noncentrosymmetric transition metal monopnictides NbP, TaP, NbAs and TaAs are a family of Weyl semimetals in which pairs of protected linear crossings of spin-resolved bands oc…
The Fermi surface of PtCoO2 from quantum oscillations and electronic structure calculations
F. Arnold, M. Naumann, H. Rosner +9
The delafossite series of layered oxides include some of the highest conductivity metals ever discovered. Of these, PtCoO2, with a room temperature resistivity of 1.8 microOhmcm fo…
Orbital effect and weak localization physics in the longitudinal magnetoresistance of the Weyl semimetals NbP, NbAs, TaP and TaAs
M. Naumann, F. Arnold, M. D. Bachmann +5
Weyl semimetals such as the TaAs family (TaAs, TaP, NbAs, NbP) host quasiparticle excitations resembling the long sought after Weyl fermions at special band-crossing points in the…
Acoustic signatures of the phases and phase transitions in YbTiO
Subhro Bhattacharjee, S. Erfanifam, E. L. Green +11
We report on measurements of the sound velocity and attenuation in a single crystal of the candidate quantum- spin-ice material YbTiO as a function of temperature and m…