Journal Article

FZJ-2020-04997

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Giant effect of spin–lattice coupling on the thermal transport in two-dimensional ferromagnetic CrI 3

Qin, G. (Corresponding author) ; Wang, H. ; Zhang, L.FZJ* ; Qin, Z. (Corresponding author) ; Hu, M. (Corresponding author)

2020
RSC London ˜[u.a.]œ

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Please use a persistent id in citations: http://hdl.handle.net/2128/26389  doi:10.1039/C9TC05928H

Abstract: High performance thermal management is of great significance to the data security and working stability of magnetic devices with broad applications from sensing to data storage and spintronics, where there would exist coupling between the spin and phonon (lattice vibrations). However, the knowledge of the spin effect on thermal transport is lacking. Here, we report that the thermal conductivity of monolayer CrI3 is more than two orders of magnitude enhanced by the spin–lattice coupling. Fundamental understanding is achieved by analyzing the coupling among electronic, magnetic and phononic properties based on the orbital projected electronic structure and spin density. The bond angles and atomic positions are substantially changed due to the spin–lattice coupling, making the structure more stiff and more symmetric, and lead to the weaker phonon anharmonicity, and thus the enhanced thermal conductivity. This study uncovers the giant effect of spin–lattice coupling on the thermal transport, which would deepen our understanding on thermal transport and shed light on future research of thermal transport in magnetic materials.

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (IAS-1)
2. Quanten-Theorie der Materialien (PGI-1)
3. JARA-FIT (JARA-FIT)
4. JARA - HPC (JARA-HPC)

Research Program(s):

1. 142 - Controlling Spin-Based Phenomena (POF3-142) (POF3-142)
2. 143 - Controlling Configuration-Based Phenomena (POF3-143) (POF3-143)

Appears in the scientific report 2020

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Database coverage:
; ; Allianz-Lizenz / DFG ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF >= 5 ; JCR ; National-Konsortium ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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