Direct evidence for dominant bond-directional interactions in a honeycomb lattice iridate Na2IrO3

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F15%3A00086048" target="_blank" >RIV/00216224:14740/15:00086048 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.nature.com/nphys/journal/v11/n6/full/nphys3322.html" target="_blank" >http://www.nature.com/nphys/journal/v11/n6/full/nphys3322.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/NPHYS3322" target="_blank" >10.1038/NPHYS3322</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Direct evidence for dominant bond-directional interactions in a honeycomb lattice iridate Na2IrO3

Popis výsledku v původním jazyce

Heisenberg interactions are ubiquitous in magnetic materials and play a central role in modelling and designing quantum magnets. Bond-directional interactions offer a novel alternative to Heisenberg exchange and provide the building blocks of the Kitaevmodel, which has a quantum spin liquid as its exact ground state. Honeycomb iridates, A2IrO3 (A = Na, Li), offer potential realizations of the Kitaev magnetic exchange coupling, and their reported magnetic behaviour may be interpreted within the Kitaev framework. However, the extent of their relevance to the Kitaev model remains unclear, as evidence for bond-directional interactions has so far been indirect. Herewe present direct evidence for dominant bond-directional interactions in antiferromagnetic Na2IrO3 and show that they lead to strong magnetic frustration.

Název v anglickém jazyce

Direct evidence for dominant bond-directional interactions in a honeycomb lattice iridate Na2IrO3

Popis výsledku anglicky

Heisenberg interactions are ubiquitous in magnetic materials and play a central role in modelling and designing quantum magnets. Bond-directional interactions offer a novel alternative to Heisenberg exchange and provide the building blocks of the Kitaevmodel, which has a quantum spin liquid as its exact ground state. Honeycomb iridates, A2IrO3 (A = Na, Li), offer potential realizations of the Kitaev magnetic exchange coupling, and their reported magnetic behaviour may be interpreted within the Kitaev framework. However, the extent of their relevance to the Kitaev model remains unclear, as evidence for bond-directional interactions has so far been indirect. Herewe present direct evidence for dominant bond-directional interactions in antiferromagnetic Na2IrO3 and show that they lead to strong magnetic frustration.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/ED1.1.00%2F02.0068" target="_blank" >ED1.1.00/02.0068: CEITEC - central european institute of technology</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nature Physics

ISSN

1745-2473

e-ISSN

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Svazek periodika

11

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

462-467

Kód UT WoS článku

000355552200010

EID výsledku v databázi Scopus

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