Emergent ferromagnetism near three-quarters filling in twisted bilayer graphene-Reference-Cited by-同舟云学术

Emergent ferromagnetism near three-quarters filling in twisted bilayer graphene

Published:2019-08-09 Issue:6453 Volume:365 Page:605-608
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Sharpe Aaron L.¹²^ORCID,Fox Eli J.²³^ORCID,Barnard Arthur W.³,Finney Joe³,Watanabe Kenji⁴^ORCID,Taniguchi Takashi⁴,Kastner M. A.²³⁵⁶^ORCID,Goldhaber-Gordon David²³^ORCID

Affiliation:

1. Department of Applied Physics, Stanford University, 348 Via Pueblo Mall, Stanford, CA 94305, USA.

2. Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA.

3. Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA.

4. National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan.

5. Science Philanthropy Alliance, 480 California Avenue #304, Palo Alto, CA 94306, USA.

6. Department of Physics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.

Abstract

Twisted bilayer graphene goes magnetic When two layers of graphene in a bilayer are twisted with respect to each other by just the right, “magic,” angle, the electrons in the system become strongly correlated. As the electronic density is tuned by gating, the system goes through several exotic phases, including superconductivity. Now, Sharpe et al. show that, at a particular electronic density, magic-angle graphene becomes magnetic (see the Perspective by Pixley and Andrei). The finding is supported by the observation of a large anomalous Hall effect. Science , this issue p. 605 ; see also p. 543

Funder

U.S. Department of Energy

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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