Probing magnetism in 2D materials at the nanoscale with single-spin microscopy
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- L. Thiel
- Department of Physics, University of Basel, Klingelbergstrasse 82, Basel CH-4056, Switzerland.
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- Z. Wang
- Department of Quantum Matter Physics, University of Geneva, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland.
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- M. A. Tschudin
- Department of Physics, University of Basel, Klingelbergstrasse 82, Basel CH-4056, Switzerland.
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- D. Rohner
- Department of Physics, University of Basel, Klingelbergstrasse 82, Basel CH-4056, Switzerland.
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- I. Gutiérrez-Lezama
- Department of Quantum Matter Physics, University of Geneva, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland.
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- N. Ubrig
- Department of Quantum Matter Physics, University of Geneva, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland.
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- M. Gibertini
- Department of Quantum Matter Physics, University of Geneva, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland.
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- E. Giannini
- Department of Quantum Matter Physics, University of Geneva, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland.
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- A. F. Morpurgo
- Department of Quantum Matter Physics, University of Geneva, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland.
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- P. Maletinsky
- Department of Physics, University of Basel, Klingelbergstrasse 82, Basel CH-4056, Switzerland.
書誌事項
- 公開日
- 2019-06-07
- DOI
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- 10.1126/science.aav6926
- 公開者
- American Association for the Advancement of Science (AAAS)
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説明
<jats:title>A detailed look into 2D magnetism</jats:title> <jats:p> The van der Waals material chromium triiodide (CrI <jats:sub>3</jats:sub> ) is a ferromagnet in the bulk but appears to become antiferromagnetic when thinned to a few atomic layers. Thiel <jats:italic>et al.</jats:italic> used a local magnetometry technique based on diamond nitrogen-vacancy centers to study the magnetism of these thin films at the nanoscale (see the Perspective by Fernández-Rossier). In agreement with previous results, films with odd numbers of layers had magnetization values consistent with that of a single layer, indicating antiferromagnetic coupling. But when the researchers' probe caused an accidental puncture, the magnetization of a nine-layer film increased approximately ninefold to a value expected in a ferromagnetic material. Further characterization suggested that the puncture had caused a structural transition, linking the structural and magnetic properties of this enigmatic system. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6444" page="973" related-article-type="in-this-issue" vol="364" xlink:href="10.1126/science.aav6926">973</jats:related-article> ; see also p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6444" page="935" related-article-type="in-this-issue" vol="364" xlink:href="10.1126/science.aax6598">935</jats:related-article> </jats:p>
収録刊行物
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- Science
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Science 364 (6444), 973-976, 2019-06-07
American Association for the Advancement of Science (AAAS)
