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Molecular beam epitaxy growth and properties of Fe3GeTe2 thin films Roemer, Ryan Lee
Abstract
Monolayer iron germanium telluride Fe₃GeTe₂, one of the typical two-dimensional ferromagnetic materials, hitherto, has only been studied by exfoliated micron-sized samples. We achieve high-quality wafer-scale growth of thin Fe₃GeTe₂ films by molecular beam epitaxy, greatly expanding the types of characterization tools employable and providing the possibility for its integration in devices like consumer electronics. Thickness-dependent transport measurements are used to characterize and probe for magnetic order. Ferromagnetic states exist in 1-10 layer thick Fe₃GeTe₂, with Curie temperatures ranging from 75 K in one layer samples to above 175 K in ten layer samples. A single ferromagnetic phase with signifi cant magnetic anisotropy is revealed for all layer numbers. We present the capability of synthesizing, wafer-scale Fe₃GeTe₂ as an essential step towards its fulfillment in any applications involving magnetism, such as spintronics.
Item Metadata
Title |
Molecular beam epitaxy growth and properties of Fe3GeTe2 thin films
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
2021
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Description |
Monolayer iron germanium telluride Fe₃GeTe₂, one of the typical two-dimensional
ferromagnetic materials, hitherto, has only been studied by exfoliated micron-sized
samples. We achieve high-quality wafer-scale growth of thin Fe₃GeTe₂
films by molecular beam epitaxy, greatly expanding the types of characterization
tools employable and providing the possibility for its integration in
devices like consumer electronics. Thickness-dependent transport measurements
are used to characterize and probe for magnetic order. Ferromagnetic
states exist in 1-10 layer thick Fe₃GeTe₂, with Curie temperatures ranging
from 75 K in one layer samples to above 175 K in ten layer samples. A
single ferromagnetic phase with signifi cant magnetic anisotropy is revealed
for all layer numbers. We present the capability of synthesizing, wafer-scale
Fe₃GeTe₂ as an essential step towards its fulfillment in any applications
involving magnetism, such as spintronics.
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Genre | |
Type | |
Language |
eng
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Date Available |
2021-04-28
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Provider |
Vancouver : University of British Columbia Library
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Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
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DOI |
10.14288/1.0397001
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
2021-05
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Campus | |
Scholarly Level |
Graduate
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Rights URI | |
Aggregated Source Repository |
DSpace
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Rights
Attribution-NonCommercial-NoDerivatives 4.0 International