Raman spectroscopic signature of fractionalized excitations in the harmonic-honeycomb iridates β- and γ-Li2IrO3

Fractional excitations in quantum spin systems lead to exotic particles predicted in theory but difficult to observe in experiments. Here, Glamazda et al. report the dynamical Raman response of β- and γ-Li2IrO3is dominated by thermal damping of fermionic excitations, suggesting the emergence of Majo...

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Bibliographic Details
Main Authors: A. Glamazda, P. Lemmens, S. -H. Do, Y. S. Choi, K. -Y. Choi
Format: Article
Language:English
Published: Nature Portfolio 2016-07-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/ncomms12286
Description
Summary:Fractional excitations in quantum spin systems lead to exotic particles predicted in theory but difficult to observe in experiments. Here, Glamazda et al. report the dynamical Raman response of β- and γ-Li2IrO3is dominated by thermal damping of fermionic excitations, suggesting the emergence of Majorana fermions from spin fractionalization.
ISSN:2041-1723