Effect of nickel substitution on magnetism in the layered van der Waals ferromagnet Fe3GeTe2
- Ames Lab. and Iowa State Univ., Ames, IA (United States)
- Paul Scherrer Inst. (PSI), Villigen (Switzerland)
- Iowa State Univ., Ames, IA (United States)
- Iowa State Univ., Ames, IA (United States); Univ. of California, Davis, CA (United States)
We have grown a series of nickel-substituted single crystals of the layered ferromagnet (FM) Fe3GeTe2. The large single-crystalline samples of (Fe1–xNix)3GeTe2 with x = 0–0.84 were characterized with single-crystal x-ray diffraction, magnetic susceptibility, electrical resistance, and muon spin spectroscopy. We find Fe can be continuously substituted with Ni with only a minor structural variation. In addition, FM order is suppressed from TC = 212K for x = 0 down to TC = 50K for x=0.3, which is accompanied by a strong suppression of saturated and effective moments, and Curie-Weiss temperature. Beyond x=0.3, the FM order is continuously smeared into a FM cluster-glass phase, with a nearly full magnetic volume fraction. Here, we attribute the observed change in the nature of magnetic order to the intrinsically disordered structure of Fe3GeTe2 and subsequent dilution effects from the Ni substitution.
- Research Organization:
- Ames Laboratory (AMES), Ames, IA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-07CH111358; GBMF4411
- OSTI ID:
- 1481861
- Alternate ID(s):
- OSTI ID: 1478688
- Report Number(s):
- IS-J-9806; PRBMDO
- Journal Information:
- Physical Review B, Vol. 98, Issue 14; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Substrate-modulated ferromagnetism of two-dimensional Fe 3 GeTe 2
|
journal | January 2020 |
New materials physics
|
journal | November 2019 |
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