Itinerant spin polaron and metallic ferromagnetism in semiconductor moiré superlattices

Margarita Davydova; Yang Zhang; Liang Fu

doi:10.1103/PhysRevB.107.224420

Itinerant spin polaron and metallic ferromagnetism in semiconductor moiré superlattices

Margarita Davydova
, Yang Zhang
, Liang Fu

Materials Theory

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

Itinerant spin polaron and metallic ferromagnetism are theoretically predicted in the Mott insulator in semiconductor moiré superlattices doped below and above half filling of the narrow moiré band, respectively. The existence of a spin polaron can be directly identified from the kink in the dependence of the charge gap on the magnetic field.

Original language	English
Article number	224420
Journal	Physical Review B
Volume	107
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.107.224420
State	Published - Jun 1 2023

Funding

This work was supported by the Air Force Office of Scientific Research (AFOSR) under award FA9550-22-1-0432 and the David and Lucile Packard Foundation.

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10.1103/PhysRevB.107.224420

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title = "Itinerant spin polaron and metallic ferromagnetism in semiconductor moir{\'e} superlattices",

abstract = "Itinerant spin polaron and metallic ferromagnetism are theoretically predicted in the Mott insulator in semiconductor moir{\'e} superlattices doped below and above half filling of the narrow moir{\'e} band, respectively. The existence of a spin polaron can be directly identified from the kink in the dependence of the charge gap on the magnetic field.",

author = "Margarita Davydova and Yang Zhang and Liang Fu",

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AU - Zhang, Yang

AU - Fu, Liang

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N2 - Itinerant spin polaron and metallic ferromagnetism are theoretically predicted in the Mott insulator in semiconductor moiré superlattices doped below and above half filling of the narrow moiré band, respectively. The existence of a spin polaron can be directly identified from the kink in the dependence of the charge gap on the magnetic field.

AB - Itinerant spin polaron and metallic ferromagnetism are theoretically predicted in the Mott insulator in semiconductor moiré superlattices doped below and above half filling of the narrow moiré band, respectively. The existence of a spin polaron can be directly identified from the kink in the dependence of the charge gap on the magnetic field.

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Itinerant spin polaron and metallic ferromagnetism in semiconductor moiré superlattices

Abstract

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