Magnetic imaging under high pressure with a spin-based quantum sensor integrated in a van der Waals heterostructure
Pressure is a powerful tool for tuning the magnetic properties of van der Waals magnets owing to their weak interlayer bonding. However, local magnetometry measurements under high pressure still remain elusive for this important class of emerging materials. Here we demonstrate magnetic imaging of a van der Waals magnet under high pressure with sub-micron spatial resolution, using a two-dimensional (2D) quantum sensing platform based on boron-vacancy ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup><mml:mrow><mml:mi>V</mml:mi></mml:mrow> <mml:mrow><mml:mi>B</mml:mi></mml:mrow> <mml:mrow><mml:mo>-</mml:mo></mml:mrow> </mml:msubsup> </mml:math> ) centers in hexagonal boron nitride (hBN). We first analyze the performances of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup><mml:mrow><mml:mi>V</mml:mi></mml:mrow> <mml:mrow><mml:mi>B</mml:mi></mml:mrow> <mml:mrow><mml:mo>-</mml:mo></mml:mrow> </mml:msubsup> </mml:math> centers in hBN for magnetic imaging under pressures up to few GPa, and we then use this 2D sensing platform to investigate the pressure-dependent magnetization in micrometer-sized flakes of 1T-CrTe<sub>2</sub>. Besides providing a new path for studying pressure-induced phase transitions in van der Waals magnets, this work also opens up interesting perspectives for exploring the physics of 2D superconductors under pressure via local measurements of the Meissner effect.
Authors
- Iann C. Gerber (ORCID: https://orcid.org/0000-0001-5091-2655)
- A. Hadj-Azzem
- Johann Coraux (ORCID: https://orcid.org/0000-0003-2373-3453)
- James H. Edgar (ORCID: https://orcid.org/0000-0003-0918-5964)
- Guillaume Cassabois (ORCID: https://orcid.org/0000-0001-5997-4609)
- Jérôme Rouquette (ORCID: https://orcid.org/0000-0002-6880-1715)
- X. Marie (ORCID: https://orcid.org/0000-0002-7772-2517)
- Jiahan Li (ORCID: https://orcid.org/0000-0002-5118-0908)
- Aurore Finco (ORCID: https://orcid.org/0000-0002-0197-7476)
- Bernard Gil (ORCID: https://orcid.org/0000-0002-1588-887X)
- Nicolas Rougemaille (ORCID: https://orcid.org/0000-0003-0923-1000)
- V. Jacques (ORCID: https://orcid.org/0000-0001-5471-6061)
- Alrik Durand (ORCID: https://orcid.org/0000-0003-4278-4141)
- Sébastien Clément (ORCID: https://orcid.org/0000-0002-8473-8197)
- J. Fraunié (ORCID: https://orcid.org/0009-0000-6785-1940)
- Cédric Robert (ORCID: https://orcid.org/0000-0002-3722-3705)
- Zhongfei Mu (ORCID: https://orcid.org/0009-0006-6666-1663)
- Thomas Poirier (ORCID: https://orcid.org/0009-0003-5258-9160)
Institutions
- Centre National de la Recherche Scientifique (FR)
- Université Toulouse III - Paul Sabatier (FR)
- University of Kansas (US)
- Université Fédérale de Toulouse Midi-Pyrénées (FR)
- Institut Universitaire de France (FR)
- Kansas State University (US)
- Institut National des Sciences Appliquées de Toulouse (FR)
- Université de Montpellier (FR)
- Institut Charles Gerhardt Montpellier (FR)
- Laboratoire Charles Coulomb (FR)
- Institut Néel (FR)
- Université Grenoble Alpes (FR)
Publication Details
- Journal
- Nature Communications
- Published
- 2025-09-29
- DOI
- https://doi.org/10.1038/s41467-025-63580-2
- Citations
- 3
- Primary Topic
- Diamond and Carbon-based Materials Research
- Type
- article
- Field-Weighted Citation Impact
- 1.55
Funders
- National Science Foundation
- U.S. Department of Energy
- Equipex
- Agence Nationale de la Recherche
- Grand Équipement National De Calcul Intensif
- Région Occitanie Pyrénées-Méditerranée
- Office of Nuclear Energy
- Idaho Operations Office, U.S. Department of Energy
- Office of Naval Research
- Division of Civil, Mechanical and Manufacturing Innovation