Topological dynamical quantum phase transition in a quantum skyrmion phase

Autor: Vipin Vijayan, L. Chotorlishvili, A. Ernst, S. S. P. Parkin, M. I. Katsnelson, S. K. Mishra

Publikováno v: Physical Review B, 107, 10, pp. 1-7
Physical Review B, 107, 1-7
Physical Review B

The quantum skyrmionic phase is modeled in a two-dimensional helical spin lattice. This topological skyrmionic phase retains its nature in a large parameter space before moving to a ferromagnetic phase. Next -nearest-neighbor interaction improves the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f14f2209db859e98395bea590e902e3f
https://doi.org/10.1103/physrevb.107.l100419

Measuring graphene’s Berry phase at B=0 T

Autor: Ivan Brihuega, Mikhail I. Katsnelson, Vincent T. Renard, Héctor González-Herrero, C. Dutreix, Claude Chapelier

Publikováno v: Comptes Rendus. Physique
Comptes Rendus. Physique, Académie des sciences (Paris), 2021, 22 (S4), pp.1-11. ⟨10.5802/crphys.79⟩
Comptes Rendus Physique, 2021, 1-11
Comptes Rendus Physique, 2021, pp. 1-11
Comptes Rendus. Physique, 2021, 22 (S4), pp.1-11. ⟨10.5802/crphys.79⟩

International audience; The Berry phase of wave functions is a key quantity to understand various low-energy propertiesof matter, among which electric polarisation, orbital magnetism, as well as topological and ultra-relativisticphenomena. Standard a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99bcec743b110d926a1c96d5d528859e
https://doi.org/10.5802/crphys.79

Anomalous transverse effects and Magneto-Optical properties of Co-based Heusler Compounds

Autor: Anusree, C.V., Rudenko, A., Manivel Raja, M., Kanchana, V.

Publikováno v: Computational Materials Science, 213, 1-10
Computational Materials Science, 213, pp. 1-10

Contains fulltext : 282477.pdf (Publisher’s version ) (Closed access)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::184d6d7473d91161f564c803380000f8
https://doi.org/10.1016/j.commatsci.2022.111625

Quantum dot-like plasmonic modes in twisted bilayer graphene supercells

Autor: Mikhail I. Katsnelson, Malte Rösner, Tom Westerhout

Publikováno v: 2d Materials, 9, 1, pp. 1-12
2d Materials, 9, 1-12

We derive a material-realistic real-space many-body Hamiltonian for twisted bilayer graphene from first principles, including both single-particle hopping terms for p z electrons and their long-range Coulomb interaction. By disentangling low- and hig

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d87ce7c49d8dee932e66ed165a4fca9d
https://doi.org/10.1088/2053-1583/ac38ca

Spin dynamics of itinerant electrons: Local magnetic moment formation and Berry phase

Autor: Stepanov, E. A., Brener, S., Harkov, V., Katsnelson, M. I., Lichtenstein, A. I.

Publikováno v: Physical Review B, 105, 15, pp. 1-21
Physical Review B, 105, 1-21

The state-of-the-art theoretical description of magnetic materials relies on solving effective Heisenberg spin problems or their generalizations to relativistic or multi-spin-interaction cases that explicitly assume the presence of local magnetic mom

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::433346b3b204b91ebc3e2e84e17a1286
https://hdl.handle.net/2066/252482