|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'501'711
Articles rated: 2609
20 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Multiferroicity and Topology in Twisted Transition Metal Dichalcogenides | | Ahmed Abouelkomsan
; Emil J. Bergholtz
; Shubhayu Chatterjee
; | | Date: |
26 Oct 2022 | | Abstract: | Van der Waals heterostructures have recently emerged as an exciting platform
for investigating the effects of strong electronic correlations, including
various forms of magnetic or electrical orders. Here, we perform an unbiased
exact diagonalization study of the effects of interactions on topological flat
bands of twisted transition metal dichalcogenides (TMDs) at odd integer
fillings. We find that Chern insulator phases, expected from
interaction-induced spin and valley polarization of the bare band structure,
are quite fragile, and give way to spontaneous multiferroic order -- coexisting
ferroelectricity and ferromagnetism, in presence of long-range Coulomb
repulsion. We provide a simple real-space picture to understand the phase
diagram as a function of interaction range and strength. Our findings establish
twisted TMDs as a novel and highly tunable platform for multiferroicity, with
potential applications to electrical control of magnetism. | | Source: | arXiv, 2210.14918 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER