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

被引：53

作者：

Drachuck, Gil ^{[1
,2
]}

Salman, Zaher ^{[3
]}

Masters, Morgan W. ^{[1
]}

Taufour, Valentin ^{[1
,4
]}

Lamichhane, Tej N. ^{[1
,2
]}

Lin, Qisheng ^{[2
,5
]}

Straszheim, Warren E. ^{[2
]}

Bud'Ko, Sergey L. ^{[1
,2
]}

Canfield, Paul C. ^{[1
,2
]}

机构：

[1] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

[2] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA

[3] Paul Scherrer Inst, Lab Muon Spin Spect, CH-5232 Villigen, Switzerland

[4] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[5] Iowa State Univ, Dept Chem, Ames, IA 50011 USA

来源：

PHYSICAL REVIEW B | 2018年 / 98卷 / 14期

关键词：

SINGLE-CRYSTALS; SOLUTION GROWTH; SUPERCONDUCTIVITY; RELAXATION; MUONS; FIELD;

D O I：

10.1103/PhysRevB.98.144434

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have grown a series of nickel-substituted single crystals of the layered ferromagnet (FM) Fe3GeTe2. The large single-crystalline samples of (Fe1-xNix)(3)GeTe2 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 T-C = 212 K for x = 0 down to T-C = 50 K 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. 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.

引用

页数：9

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