title: Ferromagnetic Mn-doped Si0.3Ge0.7 nanodots self-assembled on Si(100).
abstract: Densely packed epitaxial Mn-doped Si(0.3)Ge(0.7) nanodots self-assembled on Si(100) have been obtained. Their structural properties were studied using reflection high-energy electron diffraction, energy dispersive x-ray diffraction, atomic force microscopy, extended x-ray absorption fine structure measurements and high-resolution transmission electron microscopy. Mn(5)Ge(1)Si(2) crystallites embedded in Si(0.3)Ge(0.7) were found. They exhibit a ferromagnetic behaviour with a Curie temperature of about 225 K.
authors.affiliation: Consiglio Nazionale delle Ricerche-Istituto di Struttura della Materia, via Fosso del Cavaliere, 00133 Roma, Italy. paola.depadova@ism.cnr.it
authors.forename: P
authors.initials: P
authors.lastname: De Padova
authors.forename: B
authors.initials: B
authors.lastname: Olivieri
authors.forename: J-M
authors.initials: JM
authors.lastname: Mariot
authors.forename: L
authors.initials: L
authors.lastname: Favre
authors.forename: I
authors.initials: I
authors.lastname: Berbezier
authors.forename: C
authors.initials: C
authors.lastname: Quaresima
authors.forename: B
authors.initials: B
authors.lastname: Paci
authors.forename: A
authors.initials: A
authors.lastname: Generosi
authors.forename: V
authors.initials: V
authors.lastname: Rossi Albertini
authors.forename: A
authors.initials: A
authors.lastname: Cricenti
authors.forename: C
authors.initials: C
authors.lastname: Ottaviani
authors.forename: M
authors.initials: M
authors.lastname: Luce
authors.forename: A M
authors.initials: AM
authors.lastname: Testa
authors.forename: D
authors.initials: D
authors.lastname: Peddis
authors.forename: D
authors.initials: D
authors.lastname: Fiorani
authors.forename: M
authors.initials: M
authors.lastname: Scarselli
authors.forename: M
authors.initials: M
authors.lastname: De Crescenzi
authors.forename: O
authors.initials: O
authors.lastname: Heckmann
authors.forename: M C
authors.initials: MC
authors.lastname: Richter
authors.forename: K
authors.initials: K
authors.lastname: Hricovini
authors.forename: F
authors.initials: F
authors.lastname: d'Acapito
mesh_terms: D005857:Germanium / Q000737:chemistry*; D008345:Manganese / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D046529:Microscopy, Electron, Transmission; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology; D012825:Silicon / Q000737:chemistry*; D013499:Surface Properties; D013696:Temperature; D014961:X-Ray Diffraction
chemical_list: D005857:Germanium; D008345:Manganese; D012825:Silicon