Giant Anomalous Hall Conductivity at the Pt/Cr₂O₃ Interface

Moriyama, Takahiro; Shiratsuchi, Yu; Iino, Tatsuya; Aono, Hikaru; Suzuki, Motohiro; Nakamura, Tetsuya; Kotani, Yoshinori; Nakatani, Ryoichi; Nakamura, Kohji; Ono, Teruo

doi:https://doi.org/10.1103/PhysRevApplied.13.034052

Giant Anomalous Hall Conductivity at the Pt/Cr₂O₃ Interface

Moriyama, Takahiro; Shiratsuchi, Yu; Iino, Tatsuya et al.

Physical Review Applied, 2020, 13(3), 034052

Number of Access:941（2025-08-14 04:33 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/89963

Link to primary information

File	Format	Terms of use	Size	Views	Date.Available	Description	information
PhysRevAppl_13_3	pdf	None	1.93 MB	272	2023.02.01

Item Information

Output File Export EndNote Basic Export Mendeley

Title	Giant Anomalous Hall Conductivity at the Pt/Cr₂O₃ Interface
Creator	NRID 1000050643326 1000050643326 CreatorName Moriyama, Takahiro
	NRID 1000070379121 1000070379121 ORCID 0000-0002-8938-4869 0000-0002-8938-4869 researchmap permalink read0090304 read0090304 Scopus Author ID 6602197167 6602197167 CreatorName Shiratsuchi, Yu
	CreatorName Iino, Tatsuya
	CreatorName Aono, Hikaru
	NRID 1000060443553 1000060443553 CreatorName Suzuki, Motohiro
	NRID 1000070311355 1000070311355 CreatorName Nakamura, Tetsuya
	NRID 1000010596464 1000010596464 CreatorName Kotani, Yoshinori
	NRID 1000060314374 1000060314374 researchmap permalink read0068619 read0068619 Scopus Author ID 7005234924 7005234924 CreatorName Nakatani, Ryoichi
	NRID 1000070281847 1000070281847 CreatorName Nakamura, Kohji
	NRID 1000090296749 1000090296749 CreatorName Ono, Teruo
Description	T.Moriyama, Y.Shiratsuchi, T.Iino, et al. Giant Anomalous Hall Conductivity at the Pt/Cr₂O₃ Interface. Physical Review Applied 13, 034052 (2020); https://doi.org/10.1103/PhysRevApplied.13.034052.
Abstract	The interface between a magnetic material and a heavy metal that has a large spin-orbit interaction is at the root of various spin-related phenomena. In this paper, we address the peculiar spin-dependent transport at a Pt/Cr₂O₃ interface by exploring the origin of the nonlinear anomalous Hall effect (AHE) in Pt/Cr₂O₃ bilayers. X-ray magnetic circular dichroism (XMCD) measurements show no appreciable magnetic moment at the interface originating from Cr 3d and Pt 5d orbitals, which could be associated with the AHE response. A possible interfacial magnetic moment M at the Pt/Cr₂O₃ interface, assumed from the detection limit of the XMCD measurements, yields an anomalous Hall conductivity (σAHE) per unit net magnetic moment (M),-σAHE/M, of 0.57 V-1, which is extraordinary large compared with that for general magnetic materials. Together with first-principles calculations, the results suggest the possibility of an intrinsic AHE in the Pt/Cr₂O₃ interface that does not rely on the net magnetic moment.
Publisher	American Physical Society
Source Title	Physical Review Applied
Volume (Issue)	13(3)
Page	034052
Date of Issued	2020-03-20
Language	English
Handle URL	https://hdl.handle.net/11094/89963
eISSN	23317019
Relation.isIdenticalTo	DOI (Publisher Version) https://doi.org/10.1103/PhysRevApplied.13.034052
Access Rights	open access
CopyRight	Copyright 2020 by the American Physical Society
oaire:version	Version of Record
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	Physical Review Applied. 2020, 13(3), p. 034052
DC.title	Giant Anomalous Hall Conductivity at the Pt/Cr₂O₃ Interface
DC.creator	Moriyama, Takahiro
	Shiratsuchi, Yu
	Iino, Tatsuya
	Aono, Hikaru
	Suzuki, Motohiro
	Nakamura, Tetsuya
	Kotani, Yoshinori
	Nakatani, Ryoichi
	Nakamura, Kohji
	Ono, Teruo
DC.publisher	American Physical Society
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2020-03-20
DC.identifier	https://doi.org/10.1103/PhysRevApplied.13.034052
DC.description	T.Moriyama, Y.Shiratsuchi, T.Iino, et al. Giant Anomalous Hall Conductivity at the Pt/Cr₂O₃ Interface. Physical Review Applied 13, 034052 (2020); https://doi.org/10.1103/PhysRevApplied.13.034052.
DCTERMS.abstract	The interface between a magnetic material and a heavy metal that has a large spin-orbit interaction is at the root of various spin-related phenomena. In this paper, we address the peculiar spin-dependent transport at a Pt/Cr₂O₃ interface by exploring the origin of the nonlinear anomalous Hall effect (AHE) in Pt/Cr₂O₃ bilayers. X-ray magnetic circular dichroism (XMCD) measurements show no appreciable magnetic moment at the interface originating from Cr 3d and Pt 5d orbitals, which could be associated with the AHE response. A possible interfacial magnetic moment M at the Pt/Cr₂O₃ interface, assumed from the detection limit of the XMCD measurements, yields an anomalous Hall conductivity (σAHE) per unit net magnetic moment (M),-σAHE/M, of 0.57 V-1, which is extraordinary large compared with that for general magnetic materials. Together with first-principles calculations, the results suggest the possibility of an intrinsic AHE in the Pt/Cr₂O₃ interface that does not rely on the net magnetic moment.
DC.rights	Copyright 2020 by the American Physical Society
DC.format	89963
citation_title	Giant Anomalous Hall Conductivity at the Pt/Cr₂O₃ Interface
citation_author	Moriyama, Takahiro
	Shiratsuchi, Yu
	Iino, Tatsuya
	Aono, Hikaru
	Suzuki, Motohiro
	Nakamura, Tetsuya
	Kotani, Yoshinori
	Nakatani, Ryoichi
	Nakamura, Kohji
	Ono, Teruo
citation_publisher	American Physical Society
citation_language	English
citation_date	2020-03-20
citation_journal_title	Physical Review Applied
citation_volume	13
citation_issue	3
citation_firstpage	034052
citation_doi	https://doi.org/10.1103/PhysRevApplied.13.034052
citation_public_url	https://hdl.handle.net/11094/89963

Giant Anomalous Hall Conductivity at the Pt/Cr₂O₃ Interface

Link to primary information

Item Information

Show details