Morphological and magnetic properties of Ge/MnxGe1-x/Ge(0 0 1)2 × 1 diluted magnetic semiconductor (Articolo in rivista)

Type
Label
  • Morphological and magnetic properties of Ge/MnxGe1-x/Ge(0 0 1)2 × 1 diluted magnetic semiconductor (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.susc.2006.02.071 (literal)
Alternative label
  • De Padova, P. (a); Generosi, A. (a); Paci, B. (a); Rossi Albertini, V. (a); Perfetti, P. (a); Quaresima, C. (a); Olivieri, B. (b); Richter, M.C. (c); Heckmann, O. (c); D’Orazio, F. (d); Lucari, F. (d); Hricovini, K. (c) (2006)
    Morphological and magnetic properties of Ge/MnxGe1-x/Ge(0 0 1)2 × 1 diluted magnetic semiconductor
    in Surface science
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • De Padova, P. (a); Generosi, A. (a); Paci, B. (a); Rossi Albertini, V. (a); Perfetti, P. (a); Quaresima, C. (a); Olivieri, B. (b); Richter, M.C. (c); Heckmann, O. (c); D’Orazio, F. (d); Lucari, F. (d); Hricovini, K. (c) (literal)
Pagina inizio
  • 4190 (literal)
Pagina fine
  • 4194 (literal)
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  • 600 (literal)
Rivista
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  • http://dx.doi.org/10.1016/j.susc.2006.02.071 (literal)
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  • 18 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (a) CNR-ISM, via Fosso del Cavaliere, 00133 Roma, Italy (b) CNR-ISAC, via Fosso del Cavaliere, 00133 Roma, Italy (c) LMPS, Université de Cergy-Pontoise, Neuville/Oise, 95031 Cergy-Pontoise, France (d) INFM-Dipartimento di Fisica, Università di L’Aquila, Via Vetoio-Coppito, I-67010 L’Aquila, Italy (literal)
Titolo
  • Morphological and magnetic properties of Ge/MnxGe1-x/Ge(0 0 1)2 × 1 diluted magnetic semiconductor (literal)
Abstract
  • We studied morphological and magnetic properties of Ge/MnxGe1-x/Ge(0 0 1)2 × 1, x = 0.02–0.04. Several MnxGe1-x alloys were grown on Ge(0 0 1)2 × 1 by molecular beam epitaxy, as a function of substrate temperature and Mn concentration. The samples were characterized in situ by RHEED, and ex situ by energy dispersive X-ray reflectivity (EDXR) and magneto-optical Kerr effect, (MOKE). From RHEED analysis we found an optimal growth temperature Tepi = 523 K to achieve 2D epitaxial MnxGe1-x (x = 0.02–0.04) alloy on a Ge(0 0 1) substrate. X-ray reflectivity measurements provided: the film roughness, the MnxGe1-x scattering length density, and the average thickness for all samples. MOKE analysis showed ferromagnetism with Curie temperature TC = 270 K for samples grown at Tepi = 523 K. (literal)
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