Electrical Resistivity in Non-stoichiometric MoO2
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Sociedade Brasileira de Física
2015
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| _version_ | 1876434138980941824 |
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| author | L. M. S. Alves |
| author_facet | L. M. S. Alves |
| contents | Electrical Resistivity in Non-stoichiometric MoO2 L. M. S. Alves S. S. Benaion C. M. Romanelli C. A. M. dos Santos M. S. da Luz B. S. de Lima F. S. Oliveira A. J. S. Machado E. B. Guedes M. Abbate R. J. O. Mossanek Física, Astronomía y Matemáticas Oxides Electrical properties Photoelectron spectroscopy MoO y with 1.85 ≤ y ≤ 2.20 has been studied by X-ray diffractometry and photoemission spectroscopy at room tem- perature and by electrical resis tance as a function of temperature from 2 to 300 K. Although X-ray diffractograms are very sim- ilar to the stoichiometric MoO 2 with monoclinic structure of the space group P2 1 /c (14), the electrical properties are strongly dependent on the oxygen composition. Samples with y =1.85 and 1.90 show anomalous behavior in electrical conductivity. Photoemission and X-ray absorption spectroscopy measure- ments suggest that this anomalous behavior is related to the presence of Mo 3+ ions such as in K x MoO 2 compound. 2015 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46438835007 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2 Vol.45 |
| format | Artículo científico |
| id | redalyc_46438835007 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Electrical Resistivity in Non-stoichiometric MoO2 L. M. S. Alves Física, Astronomía y Matemáticas Oxides Electrical properties Photoelectron spectroscopy Electrical Resistivity in Non-stoichiometric MoO2 L. M. S. Alves S. S. Benaion C. M. Romanelli C. A. M. dos Santos M. S. da Luz B. S. de Lima F. S. Oliveira A. J. S. Machado E. B. Guedes M. Abbate R. J. O. Mossanek Física, Astronomía y Matemáticas Oxides Electrical properties Photoelectron spectroscopy MoO y with 1.85 ≤ y ≤ 2.20 has been studied by X-ray diffractometry and photoemission spectroscopy at room tem- perature and by electrical resis tance as a function of temperature from 2 to 300 K. Although X-ray diffractograms are very sim- ilar to the stoichiometric MoO 2 with monoclinic structure of the space group P2 1 /c (14), the electrical properties are strongly dependent on the oxygen composition. Samples with y =1.85 and 1.90 show anomalous behavior in electrical conductivity. Photoemission and X-ray absorption spectroscopy measure- ments suggest that this anomalous behavior is related to the presence of Mo 3+ ions such as in K x MoO 2 compound. 2015 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46438835007 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2 Vol.45 |
| title | Electrical Resistivity in Non-stoichiometric MoO2 |
| topic | Física, Astronomía y Matemáticas Oxides Electrical properties Photoelectron spectroscopy |
| url | https://www.redalyc.org/articulo.oa?id=46438835007 |