Zobrazeno 1 - 10
of 340
pro vyhledávání: '"Chioncel L"'
Publikováno v:
Phys. Rev. B 109, 165107 (2024)
Ordinary superconductors are widely assumed insensitive to small concentrations of random nonmagnetic impurities, whereas strong disorder suppresses superconductivity, ultimately leading to a superconductor-insulator transition. In between these limi
Externí odkaz:
http://arxiv.org/abs/2403.13202
Compton scattering is a well-established technique that can provide detailed information about electronic states in solids. Making use of the principle of tomography, it is possible to determine the Fermi surface from sets of Compton-scattering data
Externí odkaz:
http://arxiv.org/abs/2210.07701
Autor:
Östlin, A., Chioncel, L.
We study the nature of the electronic states in the intermediate band formed by interstitial titanium in silicon. Our single-site description combines effects of electronic correlations, captured by dynamical mean-field theory, and disorder, modeled
Externí odkaz:
http://arxiv.org/abs/2111.03387
Autor:
Schilberth, F. L., Unglert, N., Prodan, L., Meggle, F., Allah, J. Ebad, Kuntscher, C. A., Tsirlin, A., Tsurkan, V., Deisenhofer, J., Chioncel, L., Kézsmárki, I., Bordács, S.
A single ferromagnetic kagome layer is predicted to realize a Chern insulator with quantized Hall conductance, which upon stacking can become a Weyl-semimetal with large anomalous Hall effect (AHE) and magneto-optical activity. Indeed, in the kagome
Externí odkaz:
http://arxiv.org/abs/2106.15156
Autor:
Weh, A., Zhang, Y., Östlin, A., Terletska, H., Bauernfeind, D., Tam, K. -M., Evertz, H. G., Byczuk, K., Vollhardt, D., Chioncel, L.
Publikováno v:
Phys. Rev. B 104, 045127 (2021)
To explore correlated electrons in the presence of local and non-local disorder, the Blackman-Esterling-Berk method for averaging over off-diagonal disorder is implemented into dynamical mean-field theory using tensor notation. The impurity model com
Externí odkaz:
http://arxiv.org/abs/2105.06971
Autor:
Terletska, H., Moilanen, A., Tam, K. -M., Zhang, Y., Wang, Y., Eisenbach, M., Vidhyadhiraja, N. S., Chioncel, L., Moreno, J.
We use the recently developed finite cluster typical medium approach to study the Anderson localization transition in three dimensions. Applying our method to the box and binary alloy disorder distributions, we find a fast convergence with the cluste
Externí odkaz:
http://arxiv.org/abs/2104.02509
Publikováno v:
Phys. Rev. B 103, 115144 (2021)
We calculated the magnetic Compton profiles (MCPs) of Ni using density functional theory supplemented by electronic correlations treated within dynamical mean-field theory (DMFT). We present comparisons between the theoretical and experimental MCPs.
Externí odkaz:
http://arxiv.org/abs/2012.08812
Autor:
Weh, A., Otsuki, J., Schnait, H., Evertz, H. G., Eckern, U., Lichtenstein, A. I., Chioncel, L.
Publikováno v:
Phys. Rev. Research 2, 043263 (2020)
In this work, we investigate models for bulk, bi- and multilayers containing half-metallic ferromagnets (HMFs), at zero and at finite temperature, in order to elucidate the effects of strong electronic correlations on the spectral properties (density
Externí odkaz:
http://arxiv.org/abs/2007.02804
Publikováno v:
Phys. Rev. B 102, 024306 (2020)
We calculate the single-particle momentum distribution of a quantum many-particle system in the presence of the Coulomb interaction and a confining potential. The region of intermediate momenta, where the confining potential dominates, marks a crosso
Externí odkaz:
http://arxiv.org/abs/2005.05090
Autor:
Östlin, A., Zhang, Y., Terletska, H., Beiuseanu, F., Popescu, V., Byczuk, K., Vitos, L., Jarrell, M., Vollhardt, D., Chioncel, L.
Publikováno v:
Phys. Rev. B 101, 014210 (2020)
By merging single-site typical medium theory with density functional theory we introduce a self-consistent framework for electronic structure calculations of materials with substitutional disorder which takes into account Anderson localization. The s
Externí odkaz:
http://arxiv.org/abs/1911.02393