DOI: 10.1063/1.4961592. Magnetic microstructure and magnetic properties of uniaxial itinerant ferromagnet Fe3GeTe2

Magnetic microstructure and magnetic properties of uniaxial itinerant ferromagnet Fe3GeTe2

10.1063/1.4961592

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

Magnetic force microscopy was used to observe the magnetic microstructure of Fe3GeTe2 at 4 K on the (001) surface. The surface magnetic structure consists of a two-phase domain branching pattern that is characteristic for highly uniaxial magnets in the plane perpendicular to the magnetic easy axis. The average surface magnetic domain width Ds = 1.3 μm determined from this pattern, in combination with intrinsic properties calculated from bulk magnetization data (the saturation magnetization Ms = 376 emu/cm3 and the uniaxial magnetocrystalline anisotropy constant Ku = 1.46 × 107 erg/cm3), was used to determine the following micromagnetic parameters for Fe3GeTe2 from phenomenological models: the domain wall energy γw = 4.7 erg/cm2, the domain wall thickness δw = 2.5 nm, the exchange stiffness constant Aex = 0.95 × 10−7 erg/cm, the exchange length lex = 2.3 nm, and the critical single domain particle diameter dc = 470 nm.

Bibliography

LeÃ³n-Brito, N., Bauer, E. D., Ronning, F., Thompson, J. D., & Movshovich, R. (2016). Magnetic microstructure and magnetic properties of uniaxial itinerant ferromagnet Fe3GeTe2. Journal of Applied Physics, 120(8).

Authors 5

N. León-Brito (first)
E. D. Bauer (additional)
F. Ronning (additional)
J. D. Thompson (additional)
R. Movshovich (additional)

References 31 Referenced 116

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Dates

Type	When
Created	9 years ago (Aug. 26, 2016, 8:30 p.m.)
Deposited	2 years, 2 months ago (July 5, 2023, 9:31 p.m.)
Indexed	4 weeks, 2 days ago (Aug. 6, 2025, 8:24 a.m.)
Issued	9 years ago (Aug. 26, 2016)
Published	9 years ago (Aug. 26, 2016)
Published Online	9 years ago (Aug. 26, 2016)
Published Print	9 years ago (Aug. 28, 2016)

Funders 1

U.S. Department of Energy 10.13039/100000015
Region: Americas
gov (National government)
Labels8
1. Energy Department
2. Department of Energy
3. United States Department of Energy
4. ENERGY.GOV
5. US Department of Energy
6. USDOE
7. DOE
8. USADOE
Awards1
1. DEAC52-06NA25396

BibTeX

@article{Le_n_Brito_2016, title={Magnetic microstructure and magnetic properties of uniaxial itinerant ferromagnet Fe3GeTe2}, volume={120}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.4961592}, DOI={10.1063/1.4961592}, number={8}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={León-Brito, N. and Bauer, E. D. and Ronning, F. and Thompson, J. D. and Movshovich, R.}, year={2016}, month=aug }

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  "abstract": "<jats:p>Magnetic force microscopy was used to observe the magnetic microstructure of Fe3GeTe2 at 4\u2009K on the (001) surface. The surface magnetic structure consists of a two-phase domain branching pattern that is characteristic for highly uniaxial magnets in the plane perpendicular to the magnetic easy axis. The average surface magnetic domain width Ds\u2009=\u20091.3\u2009\u03bcm determined from this pattern, in combination with intrinsic properties calculated from bulk magnetization data (the saturation magnetization Ms\u2009=\u2009376\u2009emu/cm3 and the uniaxial magnetocrystalline anisotropy constant Ku\u2009=\u20091.46\u2009\u00d7\u2009107\u2009erg/cm3), was used to determine the following micromagnetic parameters for Fe3GeTe2 from phenomenological models: the domain wall energy \u03b3w\u2009=\u20094.7\u2009erg/cm2, the domain wall thickness \u03b4w\u2009=\u20092.5\u2009nm, the exchange stiffness constant Aex\u2009=\u20090.95\u2009\u00d7\u200910\u22127\u2009erg/cm, the exchange length lex\u2009=\u20092.3\u2009nm, and the critical single domain particle diameter dc\u2009=\u2009470\u2009nm.</jats:p>",
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