Probing the Berezinskii-Kosterlitz-Thouless vortex unbinding transition in two-dimensional superconductors using local noise magnetometry
Understanding the dynamics of vortices in superconductors is crucial in two dimensions, since these materials are expected to undergo a topological Berezinskii-Kosterlitz-Thouless (BKT) phase transition. It has remained challenging, however, to directly fingerprint this transition and the associated vortex dynamics. Here, the authors show that spin qubit noise magnetometry can potentially detect signatures of the BKT transition via its impact on the magnetic flux noise emanating from the sample as a function of frequency, temperature, and distance.
Authors
- Jonathan B. Curtis (ORCID: https://orcid.org/0000-0001-8544-0555)
- Nicholas R. Poniatowski (ORCID: https://orcid.org/0000-0002-5003-428X)
- Amir Yacoby (ORCID: https://orcid.org/0000-0002-5737-7963)
- Nikola Maksimovic (ORCID: https://orcid.org/0000-0002-4540-6579)
- Eugene Demler (ORCID: https://orcid.org/0000-0002-2499-632X)
- Bertrand I. Halperin (ORCID: https://orcid.org/0000-0002-6999-1039)
- Prineha Narang (ORCID: https://orcid.org/0000-0003-3956-4594)
Institutions
- Harvard University (US)
- University of California, Los Angeles (US)
- Harvard University Press (US)
- ETH Zurich (CH)
Publication Details
- Journal
- Physical review. B./Physical review. B
- Published
- 2024-10-22
- DOI
- https://doi.org/10.1103/physrevb.110.144518
- Citations
- 10
- Primary Topic
- Physics of Superconductivity and Magnetism
- Type
- article
- Field-Weighted Citation Impact
- 3.11
Funders
- National Science Foundation
- U.S. Department of Energy
- Gordon and Betty Moore Foundation
- Army Research Office