Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Pourovskii, Leonid"'
The origin of the "hidden" quadrupolar and unconventional magnetic low-temperature orders observed in the spin-orbit double perovskite Ba$_2$MgReO$_6$ defies explanation through standard experimental and theoretical techniques. Here we address this p
Externí odkaz:
http://arxiv.org/abs/2402.15564
Autor:
Soh, Jian-Rui, Merkel, Maximilian E., Pourovskii, Leonid, Živković, Ivica, Malanyuk, Oleg, Pásztorová, Jana, Francoual, Sonia, Hirai, Daigorou, Urru, Andrea, Tolj, Davor, Fiore-Mosca, Dario, Yazyev, Oleg, Spaldin, Nicola A., Ederer, Claude, Rønnow, Henrik M.
Clarifying the underlying mechanisms that govern ordering transitions in condensed matter systems is crucial for comprehending emergent properties and phenomena. While transitions are often classified as electronically driven or lattice-driven, we pr
Externí odkaz:
http://arxiv.org/abs/2312.01767
Publikováno v:
Communications Physics 7, 12 (2024)
Standard microscopic approach to magnetic orders is based on assuming a Heisenberg form for inter-atomic exchange interactions. These interactions are considered as a driving force for the ordering transition with magnetic moments serving as the prim
Externí odkaz:
http://arxiv.org/abs/2309.07071
Autor:
Celiberti, Lorenzo, Mosca, Dario Fiore, Allodi, Giuseppe, Pourovskii, Leonid V., Tassetti, Anna, Forino, Paola Caterina, Cong, Rong, Garcia, Erick, Tran, Phuong M., De Renzi, Roberto, Woodward, Patrick M., Mitrović, Vesna F., Sanna, Samuele, Franchini, Cesare
Polarons and spin-orbit (SO) coupling are distinct quantum effects that play a critical role in charge transport and spin-orbitronics. Polarons originate from strong electron-phonon interaction and are ubiquitous in polarizable materials featuring el
Externí odkaz:
http://arxiv.org/abs/2306.15757
Autor:
Blesio, German G., Pourovskii, Leonid V., Aichhorn, Markus, Pozzo, Monica, Alfè, Dario, Mravlje, Jernej
Knowing the transport properties of iron under realistic conditions present in the Earth's core is essential for the geophysical modeling of Earth's magnetic field generation. Besides by extreme pressures and temperatures, transport may be influenced
Externí odkaz:
http://arxiv.org/abs/2304.13962
Autor:
Pourovskii, Leonid V.
Publikováno v:
Phys. Rev. B 108, 054436 (2023)
In Mott insulators with a half-filled $t_{2g}$ shell the Hund's rule coupling induces a spin-3/2 orbital-singlet ground state. The spin-orbit interaction is not expected to qualitatively impact low-energy degrees of freedom in such systems. Indeed, $
Externí odkaz:
http://arxiv.org/abs/2212.03358
Autor:
Boust, James, Aubert, Alex, Fayyazi, Bahar, Skokov, Konstantin P., Skourski, Yurii, Gutfleisch, Oliver, Pourovskii, Leonid V.
A first-principles approach combining density functional and dynamical mean-field theories in conjunction with a quasi-atomic approximation for the strongly localized 4$f$ shell is applied to Nd$_{2}$Fe$_{14}$B-based hard magnets in order to evaluate
Externí odkaz:
http://arxiv.org/abs/2206.15093
Multipolar magnetic phases in correlated insulators represent a great challenge for Density Functional Theory (DFT) due to the coexistence of intermingled interactions, typically spin-orbit coupling, crystal field and complex non-collinear and high-r
Externí odkaz:
http://arxiv.org/abs/2202.12920
Autor:
Galler, Anna, Pourovskii, Leonid V.
Publikováno v:
New J. Phys. 24 043039 (2022)
The electronic structure of the rare-earth mononitrides LnN (where Ln=rare-earth), which are promising materials for future spintronics applications, is difficult to resolve experimentally due to a strong influence of defects on their transport and o
Externí odkaz:
http://arxiv.org/abs/2112.11076
In rare-earth semiconductors, wide ligand $p$ and rare-earth 5$d$ bands coexist with localized, partially filled 4$f$ shells. A simultaneous description for both extended and localized states represents a significant challenge for first-principles th
Externí odkaz:
http://arxiv.org/abs/2110.00400