| Full text | |
| Author(s): |
Andrade, Margareth
;
Maffei, Mariana Lanzoni
;
Salgado Alves, Leandro Marcos
;
Moreira dos Santos, Carlos Alberto
;
Ferreira, Bento
;
Sartori, Antonio Fernando
Total Authors: 6
|
| Document type: | Journal article |
| Source: | MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 15, n. 6, p. 5-pg., 2012-11-01. |
| Abstract | |
High quality KMo4O6 single crystals with tetragonal structure (space group P4/mbm) have been prepared by fused salt electrolysis. The crystals were studied by scanning electron microscopy (SEM), X-ray diffractometry, electrical resistivity, and magnetization measurements. X-ray powder diffraction patterns and SEM have given some information on the growth of single crystals. Electrical resistivity as a function of temperature shows that the KMo4O6 compound is a bad metal with resistivity change of approximately 30% in the temperature range from 2 to 300K. A metal-insulator transition (MIT), observed at approximately 110K, has been also confirmed for this material. Magnetization as a function of temperature agrees with previous report, however a magnetic ordering has been observed in M(H) curves in the whole temperature range. (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: | 09/14524-6 - Re-liquefier for using in a 9 t MagLab Oxford |
| Grantee: | Carlos Alberto Moreira dos Santos |
| Support Opportunities: | Regular Research Grants |
| 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 |