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Title: Competing antiferromagnetism in a quasi-2D itinerant ferromagnet: Fe3GeTe2

Journal Article · · 2D Materials

Fe3GeTe2 is known as an air-stable layered metal with itinerant ferromagnetism with a transition temperature of about 220 K. From extensive dc and ac magnetic measurements, we have determined that the ferromagnetic layers of Fe3GeTe2 order antiferromagnetically along the c-axis blow 152 K. The antiferromagnetic state was further substantiated by theoretical calculation to be the ground state. A magnetic structure model was proposed to describe the antiferromagnetic ground state as well as competition between antiferromagnetic and ferromagnetic states. Furthermore, Fe3GeTe2 shares many common features with pnictide superconductors and may be a promising system in which to search for unconventional superconductivity.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1332067
Journal Information:
2D Materials, Journal Name: 2D Materials Journal Issue: 1 Vol. 4; ISSN 2053-1583
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (25)

Lattice Dynamics, Phonon Chirality, and Spin–Phonon Coupling in 2D Itinerant Ferromagnet Fe 3 GeTe 2 journal September 2019
Fe 5− x Ge 2 Te 2 —a New Exfoliable Itinerant Ferromagnet with High Curie Temperature and Large Perpendicular Magnetic Anisotropy journal December 2019
The van der Waals Ferromagnets Fe 5- δ GeTe 2 and Fe 5- δ -x Ni x GeTe 2 - Crystal Structure, Stacking Faults, and Magnetic Properties : The van der Waals Ferromagnets Fe journal November 2018
Hard magnetic properties in nanoflake van der Waals Fe3GeTe2 journal April 2018
Two-dimensional itinerant ferromagnetism in atomically thin Fe3GeTe2 journal August 2018
Critical behavior of the van der Waals bonded high T C ferromagnet Fe3GeTe2 journal July 2017
Anisotropic magnetocaloric effect in Fe3−xGeTe2 journal September 2019
Thickness-dependent magnetic order in CrI3 single crystals journal September 2019
High-throughput screening and classification of layered di-metal chalcogenides journal January 2019
Long range intrinsic ferromagnetism in two dimensional materials and dissipationless future technologies journal December 2018
Frontiers of magnetic force microscopy journal February 2019
Pressure-induced modification of the anomalous Hall effect in layered Fe 3 GeTe 2 journal July 2019
Field-dependent anisotropic magnetic coupling in layered ferromagnetic Fe 3 − x GeTe 2 journal September 2019
Angular dependence of the topological Hall effect in the uniaxial van der Waals ferromagnet Fe 3 GeTe 2 journal October 2019
Anisotropic anomalous Hall effect in triangular itinerant ferromagnet Fe 3 GeTe 2 journal October 2017
Critical behavior of the van der Waals bonded ferromagnet Fe 3 − x GeTe 2 journal October 2017
Visualization and manipulation of magnetic domains in the quasi-two-dimensional material F e 3 GeT e 2 journal January 2018
Domain wall pinning and hard magnetic phase in Co-doped bulk single crystalline Fe 3 GeTe 2 journal May 2019
Emergence of Kondo lattice behavior in a van der Waals itinerant ferromagnet, Fe 3 GeTe 2 journal January 2018
Antisymmetric magnetoresistance in van der Waals Fe 3 GeTe 2 /graphite/Fe 3 GeTe 2 trilayer heterostructures journal July 2019
Two-Dimensional Itinerant Ising Ferromagnetism in Atomically thin Fe3GeTe2 text January 2018
Hard magnetic properties in nanoflake van der Waals Fe3GeTe2 text January 2018
Long Range Intrinsic Ferromagnetism in Two Dimensional Materials and Dissipationless Future Technologies text January 2018
Anisotropic magnetocaloric effect in Fe$_{3-x}$GeTe$_2$ text January 2019
Thickness-dependent magnetic order in CrI$_3$ single crystals text January 2019