Magnetic coupling in highly ordered NiO/Fe3O4(110)

• Verfasst von: Krug, Ingo Peter [VerfasserIn]
• Verfasst von: Haverkort, Maurits W. [VerfasserIn]
• Titel: Magnetic coupling in highly ordered NiO/Fe3O4(110)
• Titelzusatz: ultrasharp magnetic interfaces vs. long-range magnetoelastic interactions
• Verf.angabe: I.P. Krug, F.U. Hillebrecht, H. Gomonaj, M.W. Haverkort, A. Tanaka, L.H. Tjeng and C.M. Schneider
• Jahr des Originals: 2007
• Fussnoten: Published online: 20 November 2007 ; Die Ziffern "3" und "4" im Titel sind tiefgestellt ; Gesehen am 09.11.2017
• Titel Quelle: Enthalten in: epl
• Jahr Quelle: 2008
• Band/Heft Quelle: 81(2008,1) Artikel-Nummer 17005, 6 Seiten
• ISSN Quelle: 1286-4854
• DOI: doi:10.1209/0295-5075/81/17005
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1565104064

Abstract

We present a laterally resolved X-ray magnetic dichroism study of the magnetic proximity effect in a highly ordered oxide system, i.e. NiO films on Fe 3 O 4 (110). We found that the magnetic interface shows an ultrasharp electronic, magnetic and structural transition from the ferrimagnet to the antiferromagnet. The monolayer which forms the interface reconstructs to NiFe 2 O 4 and exhibits an enhanced Fe and Ni orbital moment, possibly caused by bonding anisotropy or electronic interaction between Fe and Ni cations. The absence of spin-flop coupling for this crystallographic orientation can be explained by a structurally uncompensated interface and additional magnetoelastic effects.