Universität zu Köln

Yokoi, T., Ma, S., Kasahara, Y., Kasahara, S., Shibauchi, T., Kurita, N., Tanaka, H., Nasu, J., Motome, Y., Hickey, C., Trebst, S. and Matsuda, Y. (2021). Half-integer quantized anomalous thermal Hall effect in the Kitaev material candidate alpha-RuCl3. Science, 373 (6554). S. 568 - 597. WASHINGTON: AMER ASSOC ADVANCEMENT SCIENCE. ISSN 1095-9203

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Abstract

Half-integer thermal quantum Hall conductance has recently been reported for the two-dimensional honeycomb material alpha-RuCl3. We found that the half-integer thermal Hall plateau appears even for a magnetic field with no out-of-plane components. The measured field-angular variation of the quantized thermal Hall conductance has the same sign structure as the topological Chern number of the pure Kitaev spin liquid. This observation suggests that the non-Abelian topological order associated with fractionalization of the local magnetic moments persists even in the presence of non-Kitaev interactions in alpha-RuCl3.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Yokoi, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ma, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kasahara, Y. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kasahara, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Shibauchi, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kurita, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Tanaka, H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Nasu, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Motome, Y. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hickey, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Trebst, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Matsuda, Y. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-589305
DOI:	10.1126/science.aay5551
Journal or Publication Title:	Science
Volume:	373
Number:	6554
Page Range:	S. 568 - 597
Date:	2021
Publisher:	AMER ASSOC ADVANCEMENT SCIENCE
Place of Publication:	WASHINGTON
ISSN:	1095-9203
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language QUANTUM; FERMIONS Multiple languages Multidisciplinary Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/58930