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Structural, optical and morphological properties of Ga1?xMnxAs thin films deposited by magnetron sputtering for spintronic device applications
| dc.creator | Bernal, M.E. | spa |
| dc.creator | Dussan, A. | spa |
| dc.creator | Mesa, F. | spa |
| dc.date.accessioned | 2020-08-28T15:48:10Z | |
| dc.date.available | 2020-08-28T15:48:10Z | |
| dc.date.created | 2012-08-15 | spa |
| dc.description.abstract | In this work, GaMnAs alloy materials were deposited on 7059 Corning glass and GaAs (1 0 0) substrates via RF magnetron sputtering technique. A concentration of Mn about 0.28 was obtained by Energy Dispersive X-ray spectroscopy. The substrate temperature was changed from 440 to 520 °C and layer thicknesses between 172 and 514 nm were obtained. Characterization by atomic force microscopy and X-ray diffraction were performed to determinate surface morphology and crystal structure, respectively. From transmittance spectral measurements we were able to determine optical constants: band gap energy (Eg), absorption coefficient (?), and refraction index (n). A correlation between morphological properties and substrate type was also studied. Diluted magnetic semiconductors like GaMnAs are considered among promising materials for the development of new spin-electronic devices. | eng |
| dc.format.mimetype | application/pdf | |
| dc.identifier.doi | https://doi.org/10.1016/j.physb.2011.12.067 | |
| dc.identifier.issn | ISSN: 0921-4526 | |
| dc.identifier.issn | EISSN: 1873-2135 | |
| dc.identifier.uri | https://repository.urosario.edu.co/handle/10336/28423 | |
| dc.language.iso | eng | spa |
| dc.publisher | Elsevier | spa |
| dc.relation.citationEndPage | 3213 | |
| dc.relation.citationIssue | No. 16 | |
| dc.relation.citationStartPage | 3210 | |
| dc.relation.citationTitle | Physica B: Condensed Matter | |
| dc.relation.citationVolume | Vol. 407 | |
| dc.relation.ispartof | Physica B: Condensed Matter, ISSN: 0921-4526;EISSN: 1873-2135, Vol. 407, No. 16 (15 August 2012); pp. 3210-3213 | spa |
| dc.relation.uri | https://www.sciencedirect.com/science/article/abs/pii/S0921452611012609 | spa |
| dc.rights.accesRights | info:eu-repo/semantics/restrictedAccess | |
| dc.rights.acceso | Restringido (Acceso a grupos específicos) | spa |
| dc.source | Physica B: Condensed Matter | spa |
| dc.source.instname | instname:Universidad del Rosario | |
| dc.source.reponame | reponame:Repositorio Institucional EdocUR | |
| dc.subject.keyword | Diluted magnetic semiconductors | spa |
| dc.subject.keyword | Optical properties | spa |
| dc.subject.keyword | Morphology | spa |
| dc.title | Structural, optical and morphological properties of Ga1?xMnxAs thin films deposited by magnetron sputtering for spintronic device applications | spa |
| dc.title.TranslatedTitle | Propiedades estructurales, ópticas y morfológicas de películas delgadas de Ga1 ? xMnxAs depositadas por pulverización catódica con magnetrón para aplicaciones de dispositivos espintrónicos | spa |
| dc.type | article | eng |
| dc.type.hasVersion | info:eu-repo/semantics/publishedVersion | |
| dc.type.spa | Artículo | spa |
