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Guo, Jianping ; Brizolla, Gusthavo M. S. ; Rao, Peng ; Shao, Jian ; Meier, Thomas Norbert G. ; Xu, Tailai ; Ji, Peirui ; Finley, Jonathan ; Fabian, Jaroslav ; Knolle, Johannes ; Back, Christian ; Chen, Lin

Electric-current control of anomalous Hall effect

Guo, Jianping, Brizolla, Gusthavo M. S., Rao, Peng, Shao, Jian, Meier, Thomas Norbert G., Xu, Tailai, Ji, Peirui, Finley, Jonathan, Fabian, Jaroslav , Knolle, Johannes, Back, Christian und Chen, Lin (2026) Electric-current control of anomalous Hall effect. arXiv preprint. (Eingereicht)

Veröffentlichungsdatum dieses Volltextes: 14 Jan 2026 05:31
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.78423


Zusammenfassung

We demonstrate robust and reversible electric-current control of the anomalous Hall effect (AHE) in a two-dimensional WTe₂/Fe₃GeTe₂ (FGT) stack. Applying a current through Td-WTe₂ leads to a giant modulation of the AHE of the adjacent FGT layer, with the relative change of the AHE conductivity exceeding 180%. Control experiments show that i) the observed effect is absent in pure FGT, ii) the ...

We demonstrate robust and reversible electric-current control of the anomalous Hall effect (AHE) in a two-dimensional WTe₂/Fe₃GeTe₂ (FGT) stack. Applying a current through Td-WTe₂ leads to a giant modulation of the AHE of the adjacent FGT layer, with the relative change of the AHE conductivity exceeding 180%. Control experiments show that i) the observed effect is absent in pure FGT, ii) the modulation weakens in thicker FGT films, confirming its interfacial origin, and iii) the modulation peaks for bilayer WTe₂, indicating that the Berry-curvature dipole (BCD) plays the dominant role in the modulation. We propose that the charge current I generates an out-of-plane magnetization Mz via BCD in WTe₂ and Mz modifies the exchange splitting of FGT via the inverse magnetic proximity effect, thereby altering its Berry curvature and nontrivially influencing the AHE. The demonstrated method of AHE control offers new possibilities for magnetism control, i.e., for the study of AHE-transistors as well as electric-current control of quantum magnets, especially magnetic insulators.



Beteiligte Einrichtungen


Details

DokumentenartArtikel
Titel eines Journals oder einer ZeitschriftarXiv preprint
Datum7 Januar 2026
InstitutionenPhysik > Institut für Theoretische Physik > Lehrstuhl Professor Richter > Arbeitsgruppe Jaroslav Fabian
Projekte
Gefördert von: Deutsche Forschungsgemeinschaft (DFG) (314695032)
Identifikationsnummer
WertTyp
2601.03744arXiv-ID
Dewey-Dezimal-Klassifikation500 Naturwissenschaften und Mathematik > 530 Physik
StatusEingereicht
BegutachtetNein, diese Version wurde noch nicht begutachtet (bei preprints)
An der Universität Regensburg entstandenZum Teil
URN der UB Regensburgurn:nbn:de:bvb:355-epub-784235
Dokumenten-ID78423

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