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Cited by 1,271

The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.

Correlated Quantum Phenomena in the Strong Spin-Orbit Regime

Open access
Witczak-Krempa, William, Chen, Gang, Kim, Yong Baek, Balents, Leon·2014·Annual Review of Condensed Matter Physics

Abstract

We discuss phenomena arising from the combined influence of electron correlation and spin-orbit coupling (SOC), with an emphasis on emergent quantum phases and transitions in heavy transition metal compounds with 4d and 5d elements. A common theme is the influence of spin-orbital entanglement produced by SOC, which influences the electronic and magnetic structure. In the weak-to-intermediate correlation regime, we show how nontrivial band-like topology leads to a plethora of phases related to topological insulators (TIs). We expound these ideas using the example of pyrochlore iridates, showing how many novel phases, such as the Weyl semimetal, axion insulator, topological Mott insulator, and TIs, may arise in this context. In the strong correlation regime, we argue that spin-orbital entanglement fully or partially removes orbital degeneracy, reducing or avoiding the normally ubiquitous Jahn-Teller effect. As we illustrate for the honeycomb-lattice iridates and double perovskites, this leads to enhanced quantum fluctuations of the spin-orbital entangled states and the chance to promote exotic spin liquid and multipolar ordered ground states. Connections to experiments, materials, and future directions are discussed.

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Metadata

Authors
Witczak-Krempa, W., Chen, G., Kim, Y. B., & Balents, L.
Venue
Annual Review of Condensed Matter Physics
Published
2014-03-01
Volume
5
Issue
1
Pages
57-82
ISSN
  • 1947-5454 (ISSN-L)
  • 1947-5462
OpenAlex
W2144716597
Cited by
1,271
References
10
FWCI
0.94
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Correlated Quantum Phenomena in the Strong Spin-Orbit Regime. https://app.cochat.ai/papers/10.1146/annurev-conmatphys-020911-125138
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Witczak-Krempa, W., Chen, G., Kim, Y. B., & Balents, L. (2014). Correlated Quantum Phenomena in the Strong Spin-Orbit Regime. Annual Review of Condensed Matter Physics. https://doi.org/10.1146/annurev-conmatphys-020911-125138

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