Characterization of Magnetic Components in the Diluted Magnetic Semiconductor Zn$_{1-x}$Co$_x$O by X-ray Magnetic Circular Dichroism

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dc.creatorKobayashi, M.
dc.creatorIshida, Y.
dc.creatorHwang, J. l.
dc.creatorMizokawa, T.
dc.creatorFujimori, A.
dc.creatorMamiya, K.
dc.creatorOkamoto, J.
dc.creatorTakeda, Y.
dc.creatorOkane, T.
dc.creatorSaitoh, Y.
dc.creatorMuramatsu, Y.
dc.creatorTanaka, A.
dc.creatorSaeki, H.
dc.creatorTabata, H.
dc.creatorKawai, T.
dc.date2005-05-16
dc.date.accessioned2026-07-07T06:26:02Z
dc.date.available2026-07-07T06:26:02Z
dc.descriptionWe report on the results of x-ray absorption (XAS), x-ray magnetic circular dichroism (XMCD), and photoemission experiments on {\it n}-type Zn$_{1-x}$Co$_x$O ($x=0.05$) thin film, which shows ferromagnetism at room temperature. The XMCD spectra show a multiplet structure, characteristic of the Co$^{2+}$ ion tetrahedrally coordinated by oxygen, suggesting that the ferromagnetism comes from Co ions substituting the Zn site in ZnO. The magnetic field and temperature dependences of the XMCD spectra imply that the non-ferromagnetic Co ions are strongly coupled antiferromagnetically with each other.
dc.description5pages, 4figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0505387
dc.identifierhttp://arxiv.org/abs/cond-mat/0505387
dc.identifierPhys. Rev. B 72, 201201 (2005)
dc.identifierdoi:10.1103/PhysRevB.72.201201
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/96998
dc.subjectMaterials Science
dc.titleCharacterization of Magnetic Components in the Diluted Magnetic Semiconductor Zn$_{1-x}$Co$_x$O by X-ray Magnetic Circular Dichroism
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