Universität zu Köln

Trebst, Simon ORCID: 0000-0002-1479-9736 and Hickey, Ciaran (2022). Kitaev materials. Phys. Rep.-Rev. Sec. Phys. Lett., 950. S. 1 - 38. AMSTERDAM: ELSEVIER. ISSN 1873-6270

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Abstract

In transition-metal compounds with partially filled 4d and 5d shells spin-orbit entanglement, electronic correlations, and crystal-field effects conspire to give rise to a variety of novel forms of topological quantum matter. This includes Kitaev materials - a family of spin-orbit assisted Mott insulators, in which local, spin-orbit entangled j = 1/2 moments form that are subject to dominant bond-directional Ising exchange interactions. On a conceptual level, Kitaev materials attract much interest for their potential for unconventional forms of magnetism, such as spin liquid physics in two and three-dimensional lattice geometries or the formation of non-trivial spin textures. Experimentally, a number of Kitaev materials have been synthesized, which includes the honeycomb materials Na2IrO3, alpha-Li2IrO3, H3LiIr2O6, and, most prominently, alpha-RuCl3, the triangular materials Ba(3)IrxTi(3-x)O(9), as well as the three-dimensional hyper-honeycomb and stripy-honeycomb materials beta-Li2IrO3 and gamma-Li2IrO3. We provide a short review of the current status of the theoretical and experimental exploration of these Kitaev materials. (c) 2021 The Author(s). Published by Elsevier B.V.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Trebst, Simon UNSPECIFIED orcid.org/0000-0002-1479-9736 UNSPECIFIED Hickey, Ciaran UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-661140
DOI:	10.1016/j.physrep.2021.11.003
Journal or Publication Title:	Phys. Rep.-Rev. Sec. Phys. Lett.
Volume:	950
Page Range:	S. 1 - 38
Date:	2022
Publisher:	ELSEVIER
Place of Publication:	AMSTERDAM
ISSN:	1873-6270
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SPIN LIQUID; MAGNETIC-PROPERTIES; QUANTUM; FRACTIONALIZATION; PHYSICS; PHASE; DELAFOSSITES; TOPOLOGY; IRIDIUM; ANYONS Multiple languages Physics, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/66114