001020240 001__ 1020240 001020240 005__ 20240226075245.0 001020240 0247_ $$2doi$$a10.1103/PhysRevLett.130.246701 001020240 0247_ $$2ISSN$$a0031-9007 001020240 0247_ $$2ISSN$$a1092-0145 001020240 0247_ $$2ISSN$$a1079-7114 001020240 0247_ $$2datacite_doi$$a10.34734/FZJ-2023-05907 001020240 0247_ $$2pmid$$a37390424 001020240 0247_ $$2WOS$$aWOS:001019609700013 001020240 037__ $$aFZJ-2023-05907 001020240 082__ $$a530 001020240 1001_ $$0P:(DE-Juel1)178993$$aGo, Dongwook$$b0$$eCorresponding author 001020240 245__ $$aLong-Range Orbital Torque by Momentum-Space Hotspots 001020240 260__ $$aCollege Park, Md.$$bAPS$$c2023 001020240 3367_ $$2DRIVER$$aarticle 001020240 3367_ $$2DataCite$$aOutput Types/Journal article 001020240 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1704263970_16172 001020240 3367_ $$2BibTeX$$aARTICLE 001020240 3367_ $$2ORCID$$aJOURNAL_ARTICLE 001020240 3367_ $$00$$2EndNote$$aJournal Article 001020240 520__ $$aWhile it is often assumed that the orbital response is suppressed and short ranged due to strong crystal field potential and orbital quenching, we show that the orbital response can be remarkably long ranged in ferromagnets. In a bilayer consisting of a nonmagnet and a ferromagnet, spin injection from the interface results in spin accumulation and torque in the ferromagnet, which rapidly oscillate and decay by spin dephasing. In contrast, even when an external electric field is applied only on the nonmagnet, we find substantially long-ranged induced orbital angular momentum in the ferromagnet, which can go far beyond the spin dephasing length. This unusual feature is attributed to nearly degenerate orbital characters imposed by the crystal symmetry, which form hotspots for the intrinsic orbital response. Because only the states near the hotspots contribute dominantly, the induced orbital angular momentum does not exhibit destructive interference among states with different momentum as in the case of the spin dephasing. This gives rise to a distinct type of orbital torque on the magnetization, increasing with the thickness of the ferromagnet. Such behavior may serve as critical long-sought evidence of orbital transport to be directly tested in experiments. Our findings open the possibility of using long-range orbital response in orbitronic device applications. 001020240 536__ $$0G:(DE-HGF)POF4-5211$$a5211 - Topological Matter (POF4-521)$$cPOF4-521$$fPOF IV$$x0 001020240 536__ $$0G:(GEPRIS)437337265$$aDFG project 437337265 - Spin+Optik: Theoretischer Entwurf von antiferromagnetischer Optospintronik (A11) (437337265)$$c437337265$$x1 001020240 536__ $$0G:(GEPRIS)444844585$$aDFG project 444844585 - Statische und dynamische Kopplung von Gitter- und elektronischen Freiheitsgraden in magnetisch geordneten Übergangsmetalldichalkogenieden (B06) (444844585)$$c444844585$$x2 001020240 588__ $$aDataset connected to CrossRef, Journals: juser.fz-juelich.de 001020240 7001_ $$0P:(DE-HGF)0$$aJo, Daegeun$$b1 001020240 7001_ $$0P:(DE-HGF)0$$aKim, Kyoung-Whan$$b2 001020240 7001_ $$0P:(DE-HGF)0$$aLee, Soogil$$b3 001020240 7001_ $$0P:(DE-HGF)0$$aKang, Min-Gu$$b4 001020240 7001_ $$0P:(DE-HGF)0$$aPark, Byong-Guk$$b5 001020240 7001_ $$0P:(DE-Juel1)130548$$aBlügel, Stefan$$b6 001020240 7001_ $$0P:(DE-HGF)0$$aLee, Hyun-Woo$$b7 001020240 7001_ $$0P:(DE-Juel1)130848$$aMokrousov, Yuriy$$b8$$ufzj 001020240 773__ $$0PERI:(DE-600)1472655-5$$a10.1103/PhysRevLett.130.246701$$gVol. 130, no. 24, p. 246701$$n24$$p246701$$tPhysical review letters$$v130$$x0031-9007$$y2023 001020240 8564_ $$uhttps://juser.fz-juelich.de/record/1020240/files/PhysRevLett.130.246701.pdf$$yOpenAccess 001020240 8564_ $$uhttps://juser.fz-juelich.de/record/1020240/files/PhysRevLett.130.246701.gif?subformat=icon$$xicon$$yOpenAccess 001020240 8564_ $$uhttps://juser.fz-juelich.de/record/1020240/files/PhysRevLett.130.246701.jpg?subformat=icon-1440$$xicon-1440$$yOpenAccess 001020240 8564_ $$uhttps://juser.fz-juelich.de/record/1020240/files/PhysRevLett.130.246701.jpg?subformat=icon-180$$xicon-180$$yOpenAccess 001020240 8564_ $$uhttps://juser.fz-juelich.de/record/1020240/files/PhysRevLett.130.246701.jpg?subformat=icon-640$$xicon-640$$yOpenAccess 001020240 909CO $$ooai:juser.fz-juelich.de:1020240$$pdnbdelivery$$pdriver$$pVDB$$popen_access$$popenaire 001020240 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)178993$$aForschungszentrum Jülich$$b0$$kFZJ 001020240 9101_ $$0I:(DE-HGF)0$$6P:(DE-HGF)0$$a Department of Physics, Pohang University of Science and Technology, Pohang 37673, Korea$$b1 001020240 9101_ $$0I:(DE-HGF)0$$6P:(DE-HGF)0$$a Center for Spintronics, Korea Institute of Science and Technology, Seoul 02792, Korea$$b2 001020240 9101_ $$0I:(DE-HGF)0$$6P:(DE-HGF)0$$a Department of Materials Science and Engineering and KI for Nanocentury, KAIST, Daejeon 34141, Korea$$b3 001020240 9101_ $$0I:(DE-HGF)0$$6P:(DE-HGF)0$$a Department of Materials Science and Engineering and KI for Nanocentury, KAIST, Daejeon 34141, Korea$$b4 001020240 9101_ $$0I:(DE-HGF)0$$6P:(DE-HGF)0$$a Department of Materials, ETH Zurich, 8093 Zurich, Switzerland$$b4 001020240 9101_ $$0I:(DE-HGF)0$$6P:(DE-HGF)0$$a Department of Materials Science and Engineering and KI for Nanocentury, KAIST, Daejeon 34141, Korea$$b5 001020240 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)130548$$aForschungszentrum Jülich$$b6$$kFZJ 001020240 9101_ $$0I:(DE-HGF)0$$6P:(DE-HGF)0$$a Department of Physics, Pohang University of Science and Technology, Pohang 37673, Korea$$b7 001020240 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)130848$$aForschungszentrum Jülich$$b8$$kFZJ 001020240 9101_ $$0I:(DE-HGF)0$$6P:(DE-Juel1)130848$$a Institute of Physics, Johannes Gutenberg University Mainz, 55099 Mainz, Germany$$b8 001020240 9131_ $$0G:(DE-HGF)POF4-521$$1G:(DE-HGF)POF4-520$$2G:(DE-HGF)POF4-500$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF4-5211$$aDE-HGF$$bKey Technologies$$lNatural, Artificial and Cognitive Information Processing$$vQuantum Materials$$x0 001020240 9141_ $$y2023 001020240 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS$$d2023-10-21 001020240 915__ $$0StatID:(DE-HGF)0160$$2StatID$$aDBCoverage$$bEssential Science Indicators$$d2023-10-21 001020240 915__ $$0StatID:(DE-HGF)1230$$2StatID$$aDBCoverage$$bCurrent Contents - 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