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https://doi.org/10.3938/NPSM.69.993
A Short Introduction to Kitaev Magnetism: An Electronic Structure Perspective
New Phys.: Sae Mulli 2019; 69: 993~1008
Published online October 31, 2019;  https://doi.org/10.3938/NPSM.69.993
© 2019 New Physics: Sae Mulli.

Heung-Sik KIM*

Department of Physics, Kangwon National University, Chuncheon 24311, Korea
Correspondence to: heungsikim@kangwon.ac.kr
Received August 22, 2019; Revised September 17, 2019; Accepted September 17, 2019.
cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
In this short review, we will introduce Kitaev magnetism in two- or three-dimensional magnetic materials based on an electronic structure and materials physics perspective. Specifically, the focus will be on the significance of spin-orbit coupling and anisotropic magnetic exchange interactions in devising the Kitaev exchange interaction. First, the quantum mechanical aspects of magnetism on the lattice geometry will be addressed, then, the effects of spin-orbit coupling and the resulting Jackeli-Khaliullin mechanism will be discussed. An introduction to Kitaev's exactly solvable model and its solution will be discussed later. Finally, we will review currently studied Kitaev candidates, the history of researches and various trials to realize Kitaev magnetism and measure the predicted Majorana mode.
PACS numbers: 75.10.Jm, 75.30.Gw, 75.47.Lx
Keywords: Kitaev magnetism, Spin-orbit coupling, Magnetic frustration, Spin liquid


October 2019, 69 (10)
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