Details

Autor(en) / Beteiligte

• D'Addato, S
• Gragnaniello, L
• Bona, A di
• Rota, A
• Vavassori, P
• Valeri, S

Titel

Growth and study of Ni nanoparticles films deposited on inert subtrates

Ist Teil von

• Journal of physics. Conference series, 2008, Vol.100 (7), p.072046

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2008

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• We report the results of a study on Ni-clusters assembled films deposited on Si(100) and MgO(100) surfaces. The films were produced by deposition of pre-formed Ni nanoparticles generated by a gas aggregation source. The samples topography and growth mode were investigated with SEM, AFM, STM and XPS. MOKE technique was used to determine magnetization curves at T 300 K, T 100 K and T 50K. The films show random paving growth mode, where clusters assemble in agglomerates. From MOKE data we observe a behaviour that can be ascribed to the occurrence of Super Correlated Spin Glass phase at T 300 K, and soft ferromagnetic hysteresis cycles at low temperature, possibly related with a different magnetic phase.