Kitaev-like honeycomb magnets: Global phase behavior and emergent effective models
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F19%3A00107309" target="_blank" >RIV/00216224:14310/19:00107309 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1103/PhysRevB.99.064425" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.99.064425</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.99.064425" target="_blank" >10.1103/PhysRevB.99.064425</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Kitaev-like honeycomb magnets: Global phase behavior and emergent effective models
Popis výsledku v původním jazyce
Compounds of transition metal ions with strong spin-orbit coupling recently attracted attention due to the possibility to host frustrated bond-dependent anisotropic magnetic interactions. In general, such interactions lead to complex phase diagrams that may include exotic phases, e.g., the Kitaev spin liquid. Here we report on our comprehensive analysis of the global phase diagram of the extended Kitaev-Heisenberg model relevant to honeycomb lattice compounds Na2IrO3 and alpha-RuCl3. We have utilized recently developed method based on spin coherent states that enabled us to resolve arbitrary spin patterns in the cluster ground states obtained by exact diagonalization. Global trends in the phase diagram are understood in combination with the analytical mappings of the Hamiltonian that uncover peculiar links to known models-Heisenberg, Ising, Kitaev, or compass models on the honeycomb lattice-or reveal entire manifolds of exact fluctuation-free ground states. Finally, our study can serve as a methodological example that can be applied to other spin models with complex bond-dependent non-Heisenberg interactions.
Název v anglickém jazyce
Kitaev-like honeycomb magnets: Global phase behavior and emergent effective models
Popis výsledku anglicky
Compounds of transition metal ions with strong spin-orbit coupling recently attracted attention due to the possibility to host frustrated bond-dependent anisotropic magnetic interactions. In general, such interactions lead to complex phase diagrams that may include exotic phases, e.g., the Kitaev spin liquid. Here we report on our comprehensive analysis of the global phase diagram of the extended Kitaev-Heisenberg model relevant to honeycomb lattice compounds Na2IrO3 and alpha-RuCl3. We have utilized recently developed method based on spin coherent states that enabled us to resolve arbitrary spin patterns in the cluster ground states obtained by exact diagonalization. Global trends in the phase diagram are understood in combination with the analytical mappings of the Hamiltonian that uncover peculiar links to known models-Heisenberg, Ising, Kitaev, or compass models on the honeycomb lattice-or reveal entire manifolds of exact fluctuation-free ground states. Finally, our study can serve as a methodological example that can be applied to other spin models with complex bond-dependent non-Heisenberg interactions.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Physical Review B
ISSN
2469-9950
e-ISSN
2469-9969
Svazek periodika
99
Číslo periodika v rámci svazku
6
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
18
Strana od-do
„064425-1“-„064425-18“
Kód UT WoS článku
000459222700012
EID výsledku v databázi Scopus
2-s2.0-85061974025