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Title: Effect of nickel substitution on magnetism in the layered van der Waals ferromagnet Fe3GeTe2

Journal Article · · Physical Review B
 [1];  [2];  [3];  [4];  [1];  [1];  [1];  [1];  [1]
  1. Ames Lab. and Iowa State Univ., Ames, IA (United States)
  2. Paul Scherrer Inst. (PSI), Villigen (Switzerland)
  3. Iowa State Univ., Ames, IA (United States)
  4. 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
Citation Metrics:
Cited by: 37 works
Citation information provided by
Web of Science

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Cited By (2)

Substrate-modulated ferromagnetism of two-dimensional Fe 3 GeTe 2 journal January 2020
New materials physics journal November 2019

Figures / Tables (7)


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