| Full text | |
| Author(s): |
Carvalho, M. H.
[1]
;
Rizzo Piton, M.
[1]
;
Lemine, O. M.
[2]
;
Bououdina, M.
[3]
;
Galeti, H. V. A.
[4]
;
Souto, S.
[5]
;
Pereira, E. C.
[6]
;
Galvao Gobato, Y.
[1]
;
de Oliveira, A. J. A.
[1]
Total Authors: 9
|
| Affiliation: | [1] Univ Fed Sao Carlos UFSCar, Dept Fis, BR-13565905 Sao Carlos, SP - Brazil
[2] Al Imam Mohammad Ibn Saud Islamic Univ IMISU, Coll Sci, Phys Dept, POB 90950, Riyadh 11623 - Saudi Arabia
[3] Bahrain Univ, Phys Dept, Zallaq - Bahrain
[4] Univ Fed Sao Carlos, Dept Engn Eletr, BR-13565905 Sao Carlos, SP - Brazil
[5] Univ Sao Paulo, Fac Zootecnia & Engn Alimentos, Dept Ciencias Basicas, BR-13635900 Pirassununga, SP - Brazil
[6] Univ Fed Sao Carlos UFSCar, Dept Quim, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 6
|
| Document type: | Journal article |
| Source: | MATERIALS RESEARCH EXPRESS; v. 6, n. 2 FEB 2019. |
| Web of Science Citations: | 2 |
| Abstract | |
In this paper, we investigated structural, optical and magnetic properties of mechanically milled In2O3 nanoparticles in the cubic bixbyite phase. It was observed that mechanical milling induces an important increase in the density of defects, strain and hexagonal phase transition for cubic In2O3 nanoparticles. Remarkably, room temperature ferromagnetism was observed after mechanical milling. The hexagonal phase of In2O3 nanoparticles (H-In2O3) which is usually obtained in a high-temperature and pressure environment was clearly observed for the sample submitted to higher milling times which considerably affects the magnetic and optical properties. The physical origin of the FM order of mechanically milled In2O3 nanoparticles has been ascribed to the increase in the density of defects and strain. (AU) | |
| FAPESP's process: | 09/54082-2 - Acquisition of a vibranting sample magnetometer coupled with a superconducting quantum interference device assensor (Squid-VSM) with cryogenic closed cycle |
| Grantee: | Ernesto Chaves Pereira de Souza |
| Support Opportunities: | Multi-user Equipment Program |
| FAPESP's process: | 13/07296-2 - CDMF - Center for the Development of Functional Materials |
| Grantee: | Elson Longo da Silva |
| Support Opportunities: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |
| FAPESP's process: | 17/24995-2 - Magnetism in multifunctional materials |
| Grantee: | Adilson Jesus Aparecido de Oliveira |
| Support Opportunities: | Regular Research Grants |