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- W2956161056 abstract "${mathrm{Fe}}_{3}{mathrm{GeTe}}_{2}$ is a paradigmatic two-dimensional ferromagnet with strong uniaxial anisotropy. In this work we systematically studied the angular dependence of electrical transport properties in ${mathrm{Fe}}_{3}{mathrm{GeTe}}_{2}$ single crystals, and uncovered an unexpected topological Hall effect (THE) in the configuration of large tilted magnetic fields. The Hall resistivity and magnetoresistance varied periodically when the external magnetic field rotated in the $ac$ (or $bc$) plane, while the THE emerged and maintained robust with fields swept across the nearby hard-magnetized $ab$ plane. The approximate in-plane THE covered the whole temperature region below ${T}_{C}(ensuremath{sim}150phantom{rule{0.28em}{0ex}}mathrm{K})$ and reached the maximum value at 100 K. Emergence of an internal gauge field was proposed to explain the origin of this large THE, which is generated by either the possible topological domain structure of uniaxial ${mathrm{Fe}}_{3}{mathrm{GeTe}}_{2}$ or the noncoplanar spin structure forming during the in-plane magnetization. Our results promise to provide an alternative detection method to the in-plane skyrmion formation and may bring a brand new prospective to magnetotransport studies in condensed matter physics." @default.
- W2956161056 created "2019-07-12" @default.
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- W2956161056 date "2019-10-31" @default.
- W2956161056 modified "2023-10-16" @default.
- W2956161056 title "Angular dependence of the topological Hall effect in the uniaxial van der Waals ferromagnet <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:msub><mml:mi>Fe</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi>GeTe</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>" @default.
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- W2956161056 doi "https://doi.org/10.1103/physrevb.100.134441" @default.
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