TY - JOUR
T1 - Wide field imaging of van der Waals ferromagnet Fe3GeTe2 by spin defects in hexagonal boron nitride
AU - Huang, Mengqi
AU - Zhou, Jingcheng
AU - Chen, Di
AU - Lu, Hanyi
AU - McLaughlin, Nathan J.
AU - Li, Senlei
AU - Alghamdi, Mohammed
AU - Djugba, Dziga
AU - Shi, Jing
AU - Wang, Hailong
AU - Du, Chunhui Rita
N1 - Funding Information:
The authors would like to thank Eric E. Fullerton for providing the Physical Property Measurement System (PPMS) for electrical transport measurements and Yuxuan Xiao for assistance in sample preparation and magnetometry characterization. The authors thank Shu Zhang for insightful discussions. J. Z., H. L., N. J. M., H. W., and C. R. D. were supported by the Air Force Office of Scientific Research under award FA9550−20-1-0319 and its Young Investigator Program under award FA9550-21-1-0125. M. H., S. L., D. D., and C. R. D. acknowledged the support from U. S. National Science Foundation (NSF) under awards ECCS-2029558 and DMR-2046227. M. A. and J. S. were supported by NSF under the award ECCS-2051450.
Publisher Copyright:
© 2022, The Author(s).
PY - 2022/12
Y1 - 2022/12
N2 - Emergent color centers with accessible spins hosted by van der Waals materials have attracted substantial interest in recent years due to their significant potential for implementing transformative quantum sensing technologies. Hexagonal boron nitride (hBN) is naturally relevant in this context due to its remarkable ease of integration into devices consisting of low-dimensional materials. Taking advantage of boron vacancy spin defects in hBN, we report nanoscale quantum imaging of low-dimensional ferromagnetism sustained in Fe3GeTe2/hBN van der Waals heterostructures. Exploiting spin relaxometry methods, we have further observed spatially varying magnetic fluctuations in the exfoliated Fe3GeTe2 flake, whose magnitude reaches a peak value around the Curie temperature. Our results demonstrate the capability of spin defects in hBN of investigating local magnetic properties of layered materials in an accessible and precise way, which can be extended readily to a broad range of miniaturized van der Waals heterostructure systems.
AB - Emergent color centers with accessible spins hosted by van der Waals materials have attracted substantial interest in recent years due to their significant potential for implementing transformative quantum sensing technologies. Hexagonal boron nitride (hBN) is naturally relevant in this context due to its remarkable ease of integration into devices consisting of low-dimensional materials. Taking advantage of boron vacancy spin defects in hBN, we report nanoscale quantum imaging of low-dimensional ferromagnetism sustained in Fe3GeTe2/hBN van der Waals heterostructures. Exploiting spin relaxometry methods, we have further observed spatially varying magnetic fluctuations in the exfoliated Fe3GeTe2 flake, whose magnitude reaches a peak value around the Curie temperature. Our results demonstrate the capability of spin defects in hBN of investigating local magnetic properties of layered materials in an accessible and precise way, which can be extended readily to a broad range of miniaturized van der Waals heterostructure systems.
UR - https://www.scopus.com/pages/publications/85137753253
U2 - 10.1038/s41467-022-33016-2
DO - 10.1038/s41467-022-33016-2
M3 - Article
C2 - 36100604
AN - SCOPUS:85137753253
SN - 2041-1723
VL - 13
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 5369
ER -