In situ photoemission study of the room-temperature ferromagnet ZnGeP_2:Mn

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dc.creatorIshida, Y.
dc.creatorSarma, D. D.
dc.creatorOkazaki, K.
dc.creatorOkabayashi, J.
dc.creatorHwang, J. I.
dc.creatorOtt, H.
dc.creatorFujimori, A.
dc.creatorMedvedkin, G. A.
dc.creatorIshibashi, T.
dc.creatorSato, K.
dc.date2003-04-04
dc.date2003-04-11
dc.date.accessioned2026-07-07T08:36:03Z
dc.date.available2026-07-07T08:36:03Z
dc.descriptionThe chemical states of the ZnGeP$_{2}$:Mn interface, which shows ferromagnetism above room-temperature, has been studied by photoemission spectroscopy. Mn deposition on the ZnGeP$_2$ substrate heated to 400$^{\circ}$C induced Mn substitution for Zn and then the formation of metallic Mn-Ge-P compounds. Depth profile studies have shown that Mn 3$d$ electrons changed their character from itinerant to localized along the depth, and in the deep region, dilute divalent Mn species ($\textless$ 5 % Mn) was observed with a coexisting metallic Fermi edge of non-Mn 3$d$ character. The possibility of hole doping through Mn substitution for Ge and/or Zn vacancy is discussed.
dc.description4 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0304109
dc.identifierhttp://arxiv.org/abs/cond-mat/0304109
dc.identifierPhys. Rev. Lett. 91, 107202 (2003)
dc.identifierdoi:10.1103/PhysRevLett.91.107202
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/139942
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleIn situ photoemission study of the room-temperature ferromagnet ZnGeP_2:Mn
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