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Absence of backscattering in Fermi-arc-mediated conductivity of topological Dirac semimetal CdAs
Vsevolod Ivanov, Lotte Borkowski, Xiangang Wan +1
Having previously been the subject of decades of semiconductor research, cadmium arsenide has now reemerged as a topological material, realizing ideal three-dimensional Dirac point…
Electronic structure and topology across in magnetic Weyl semimetal CoSnS
Antonio Rossi, Vsevolod Ivanov, Sudheer Sreedhar +8
CoSnS is a magnetic Weyl semimetal, in which ferromagnetic ordering at 177K is predicted to stabilize Weyl points. We perform temperature and spatial dependent angle--r…
Colossal anomalous Nernst effect in a correlated noncentrosymmetric kagome ferromagnet
T. Asaba, V. Ivanov, S. M. Thomas +4
Analogous to the Hall effect, the Nernst effect is the generation of a transverse voltage due to a temperature gradient in the presence of a perpendicular magnetic field. The Nerns…
Calculated Exchange Interactions and Sensitivity of Ni Two-Hole Spin State to Hund's Coupling in Doped NdNiO2
Xiangang Wan, Vsevolod Ivanov, Giacomo Resta +2
Using density functional based LDA+U method and linear-response theory, we study the magnetic exchange interactions of the superconductor Nd{1-x}Sr{x}NiO2. Our calculated nearest-n…
Renormalized quasiparticles, topological monopoles and superconducting line nodes in heavy fermion CeTX compounds
Vsevolod Ivanov, Xiangang Wan, Sergey Y. Savrasov
Non-centrosymmetric superconductors have recently attracted much attention, since the lack of inversion symmetry mixes spin singlet and triplet pairing states, which may allow the…
Lifshitz transition and frustration of magnetic moments in infinite-layer NdNiO upon hole-doping
I. Leonov, S. L. Skornyakov, S. Y. Savrasov
Motivated by the recent discovery of superconductivity in the infinite-layer (Sr,Nd)NiO films with Sr content [Li et al., Nature (London) \textbf{572}, 624 (2019)…