Strong Correlation Between Superconductivity and Ferromagnetism in an Fe-Chalcogenide Superconductor
Abstract
The interplay among topology, superconductivity, and magnetism promises to bring a plethora of exotic and unintuitive behaviors in emergent quantum materials. The family of Fe-chalcogenide superconductors FeTexSe1–x are directly relevant in this context due to their intrinsic topological band structure, high-temperature superconductivity, and unconventional pairing symmetry. Despite enormous promise and expectation, the local magnetic properties of FeTexSe1–x remain largely unexplored, which prevents a comprehensive understanding of their underlying material properties. Exploiting nitrogen vacancy (NV) centers in diamond, here we report nanoscale quantum sensing and imaging of magnetic flux generated by exfoliated FeTexSe1–x flakes, demonstrating strong correlation between superconductivity and ferromagnetism in FeTexSe1–x. The coexistence of superconductivity and ferromagnetism in an established topological superconductor opens up new opportunities for exploring exotic spin and charge transport phenomena in quantum materials. The demonstrated coupling between NV centers and FeTexSe1–x may also find applications in developing hybrid architectures for next-generation, solid-state-based quantum information technologies.
- Authors:
-
[2];
- Univ. of California, San Diego, CA (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Univ. of California, San Diego, CA (United States); Westlake Univ., Hangzhou (China)
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1827162
- Report Number(s):
- BNL-222279-2021-JAAM
Journal ID: ISSN 1530-6984; TRN: US2215940
- Grant/Contract Number:
- SC0012704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nano Letters
- Additional Journal Information:
- Journal Volume: 21; Journal Issue: 17; Journal ID: ISSN 1530-6984
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Quantum sensing; Nitrogen vacancy magnetometry; Topological superconductors; Unconventional ferromagnetism
Citation Formats
McLaughlin, Nathan J., Gu, Genda, Wang, Hailong, Huang, Mengqi, Lee-Wong, Eric, Hu, Lunhui, Lu, Hanyi, Yan, Gerald Q., Wu, Congjun, You, Yi-Zhuang, and Du, Chunhui R. Strong Correlation Between Superconductivity and Ferromagnetism in an Fe-Chalcogenide Superconductor. United States: N. p., 2021.
Web. doi:10.1021/acs.nanolett.1c02424.
McLaughlin, Nathan J., Gu, Genda, Wang, Hailong, Huang, Mengqi, Lee-Wong, Eric, Hu, Lunhui, Lu, Hanyi, Yan, Gerald Q., Wu, Congjun, You, Yi-Zhuang, & Du, Chunhui R. Strong Correlation Between Superconductivity and Ferromagnetism in an Fe-Chalcogenide Superconductor. United States. https://doi.org/10.1021/acs.nanolett.1c02424
McLaughlin, Nathan J., Gu, Genda, Wang, Hailong, Huang, Mengqi, Lee-Wong, Eric, Hu, Lunhui, Lu, Hanyi, Yan, Gerald Q., Wu, Congjun, You, Yi-Zhuang, and Du, Chunhui R. Wed .
"Strong Correlation Between Superconductivity and Ferromagnetism in an Fe-Chalcogenide Superconductor". United States. https://doi.org/10.1021/acs.nanolett.1c02424. https://www.osti.gov/servlets/purl/1827162.
@article{osti_1827162,
title = {Strong Correlation Between Superconductivity and Ferromagnetism in an Fe-Chalcogenide Superconductor},
author = {McLaughlin, Nathan J. and Gu, Genda and Wang, Hailong and Huang, Mengqi and Lee-Wong, Eric and Hu, Lunhui and Lu, Hanyi and Yan, Gerald Q. and Wu, Congjun and You, Yi-Zhuang and Du, Chunhui R.},
abstractNote = {The interplay among topology, superconductivity, and magnetism promises to bring a plethora of exotic and unintuitive behaviors in emergent quantum materials. The family of Fe-chalcogenide superconductors FeTexSe1–x are directly relevant in this context due to their intrinsic topological band structure, high-temperature superconductivity, and unconventional pairing symmetry. Despite enormous promise and expectation, the local magnetic properties of FeTexSe1–x remain largely unexplored, which prevents a comprehensive understanding of their underlying material properties. Exploiting nitrogen vacancy (NV) centers in diamond, here we report nanoscale quantum sensing and imaging of magnetic flux generated by exfoliated FeTexSe1–x flakes, demonstrating strong correlation between superconductivity and ferromagnetism in FeTexSe1–x. The coexistence of superconductivity and ferromagnetism in an established topological superconductor opens up new opportunities for exploring exotic spin and charge transport phenomena in quantum materials. The demonstrated coupling between NV centers and FeTexSe1–x may also find applications in developing hybrid architectures for next-generation, solid-state-based quantum information technologies.},
doi = {10.1021/acs.nanolett.1c02424},
journal = {Nano Letters},
number = 17,
volume = 21,
place = {United States},
year = {Wed Sep 08 00:00:00 EDT 2021},
month = {Wed Sep 08 00:00:00 EDT 2021}
}
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