Physica. B, Condensed matter, 2012-06, Vol.407 (12), p.2084-2088
2012
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- Autor(en) / Beteiligte
- Titel
- Room temperature magnetism of Fe doped CdS nanocrystals
- Ist Teil von
- Physica. B, Condensed matter, 2012-06, Vol.407 (12), p.2084-2088
- Ort / Verlag
- Kidlington: Elsevier B.V
- Erscheinungsjahr
- 2012
- Quelle
- Elsevier ScienceDirect Journals
- Beschreibungen/Notizen
- Undoped and Fe doped CdS nanocrystals with Fe content of 2–5at% of average crystallite size 1.2–2nm have been obtained using chemical co-precipitation method with 2-mercaptoethonal as capping agent at 80°C. X-ray diffraction (XRD) results showed that the undoped CdS nanocrystals were in mixed phase of cubic and hexagonal, where as the doped CdS nanocrystals were in hexagonal phase. Room-temperature ferromagnetism has been observed in Fe-doped CdS nanocrystals. Magnetic studies indicated diamagnetism in undoped, ferromagnetism in lightly doped (2 and 3at%) and paramagnetism in samples of higher Fe content (4 and 5at%). The substitutional incorporation of Fe3+ ion in Cd2+ sites was reflected in structural and electron paramagnetic resonance (EPR) measurements. Isolated as well as interacting Fe3+ ions are observed in EPR.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0921-4526eISSN: 1873-2135DOI: 10.1016/j.physb.2012.02.011Titel-ID: cdi_proquest_miscellaneous_1022911252
- Format
- –
- Schlagworte
- Cadmium sulfides, CdS, Condensed matter, Condensed matter: electronic structure, electrical, magnetic, and optical properties, Crystallites, Diamagnetism, paramagnetism and superparamagnetism, Diffraction, Electron paramagnetic resonance, EPR, Exact sciences and technology, Ferromagnetism, Iron, Magnetic properties and materials, Magnetic properties of nanostructures, Magnetic semiconductors, Nanocrystals, Nonmetals, Physics, Studies of specific magnetic materials, XRD