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Thermal Hall conductivity in the cuprate Mott insulators Nd2CuO4 and Sr2CuO2Cl2

Authors :
Marie-Eve Boulanger
Gaël Grissonnanche
Sven Badoux
Andréanne Allaire
Étienne Lefrançois
Anaëlle Legros
Adrien Gourgout
Maxime Dion
C. H. Wang
X. H. Chen
R. Liang
W. N. Hardy
D. A. Bonn
Louis Taillefer
Source :
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Publication Year :
2020
Publisher :
Nature Portfolio, 2020.

Abstract

What makes the phonons in cuprates become chiral, as measured by their thermal Hall effect, is an unresolved question. Here, the authors rule out two extrinsic mechanisms and argue that chirality comes from a coupling of acoustic phonons to the intrinsic excitations of the CuO2 planes.

Subjects

Subjects :
Science

Details

Language :
English
ISSN :
20411723
Volume :
11
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Nature Communications
Publication Type :
Academic Journal
Accession number :
edsdoj.1bb17ab5f124ce389e4e6db240add58
Document Type :
article
Full Text :
https://doi.org/10.1038/s41467-020-18881-z