Imaging orbital ferromagnetism in a moiré Chern insulator-Reference-Cited by-同舟云学术

Imaging orbital ferromagnetism in a moiré Chern insulator

Published:2021-06-18 Issue:6548 Volume:372 Page:1323-1327
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Tschirhart C. L.¹^ORCID,Serlin M.¹,Polshyn H.¹^ORCID,Shragai A.¹,Xia Z.¹^ORCID,Zhu J.¹,Zhang Y.¹^ORCID,Watanabe K.²^ORCID,Taniguchi T.³^ORCID,Huber M. E.⁴^ORCID,Young A. F.¹^ORCID

Affiliation:

1. Department of Physics, University of California, Santa Barbara, CA 93106, USA.

2. Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan.

3. International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan.

4. Departments of Physics and Electrical Engineering, University of Colorado Denver, Denver, CO 80217, USA.

Abstract

Capturing exotic magnetism Ferromagnetism is associated with the breaking of time-reversal symmetry, most frequently by the spin degree of freedom. Although the orbital motion of electrons can also contribute to ferromagnetism, in most materials, it is small relative to the spin contribution. Tschirhart et al. showed that the reverse is true in an unusual magnetic state hosted by twisted bilayer graphene. Their scanning magnetometry measurements were consistent with ferromagnetism of predominantly orbital origin. Science , abd3190, this issue p. 1323

Funder

National Science Foundation

U.S. Department of Energy

Army Research Office

Gordon and Betty Moore Foundation

Hertz Foundation

Japan Society for the Promotion of Science

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference44 articles.