| Full text | |
| Author(s): Show less - |
Alves, L. M. S.
[1]
;
Benaion, S. S.
[1]
;
Romanelli, C. M.
[1]
;
dos Santos, C. A. M.
[1]
;
da Luz, M. S.
[1, 2]
;
de Lima, B. S.
[1]
;
Oliveira, F. S.
[1]
;
Machado, A. J. S.
[1]
;
Guedes, E. B.
[3]
;
Abbate, M.
[3]
;
Mossanek, R. J. O.
[3]
Total Authors: 11
|
| Affiliation: | [1] Univ Sao Paulo, Escola Engn Lorena, BR-12600970 Lorena, SP - Brazil
[2] Univ Fed Triangulo Mineiro, Inst Ciencias Tecnol & Exatas, BR-38064200 Uberaba, MG - Brazil
[3] Univ Fed Parana, Dept Fis, BR-81531990 Curitiba, PR - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Brazilian Journal of Physics; v. 45, n. 2, p. 234-237, APR 2015. |
| Web of Science Citations: | 4 |
| Abstract | |
MoO (y) with 1.85 a parts per thousand currency signaEuro parts per thousand y a parts per thousand currency signaEuro parts per thousand 2.20 has been studied by X-ray diffractometry and photoemission spectroscopy at room temperature and by electrical resistance as a function of temperature from 2 to 300 K. Although X-ray diffractograms are very similar to the stoichiometric MoO2 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 measurements suggest that this anomalous behavior is related to the presence of Mo3+ ions such as in KxMoO2 compound. (AU) | |
| FAPESP's process: | 09/54001-2 - Acquisition of cryogen-free equipment for the characterization of magnetic properties by vibrating sample magnetometry |
| Grantee: | Carlos Alberto Moreira dos Santos |
| Support Opportunities: | Multi-user Equipment Program |
| FAPESP's process: | 10/06637-2 - Crystalline structure and physical properties of the anomalous conductor KxMoO2-d |
| Grantee: | Leandro Marcos Salgado Alves |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 09/14524-6 - Re-liquefier for using in a 9 t MagLab Oxford |
| Grantee: | Carlos Alberto Moreira dos Santos |
| Support Opportunities: | Regular Research Grants |