Magnetic properties of LaFe1-xCrxO3 and Fe2-2xCr2xO3 mixed oxides
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| 1. | Title | Title of document | Magnetic properties of LaFe1-xCrxO3 and Fe2-2xCr2xO3 mixed oxides |
| 2. | Creator | Author's name, affiliation, country | E. Loudghiri; Laboratoire de Physique des Matériaux, Faculté des Sciences Université Mohammed V, B.P. 1014 Rabat; Morocco |
| 2. | Creator | Author's name, affiliation, country | A. Belayachi; Laboratoire de Physique des Matériaux, Faculté des Sciences Université Mohammed V, B.P. 1014 Rabat; Morocco |
| 2. | Creator | Author's name, affiliation, country | M. Nogues; Laboratoire de Magnétisme et d’Optique de l’Université de Versailles (URA 1531), Batiment Fermat, 45 Avenue des Etats Unis, 78035 Versailles Cedex; France |
| 2. | Creator | Author's name, affiliation, country | M. Taibi; Laboratoire de Physico-Chimie des Matériaux associé à l’AUF (LAF 502), Ecole Normale Supérieure Takadoum B.P. 5118 Rabat; Morocco |
| 2. | Creator | Author's name, affiliation, country | A. Dahmani; Laboratoire de Physique des Matériaux, Faculté des Sciences Université Mohammed V, B.P. 1014 Rabat Laboratoire de Physico-Chimie des Matériaux associé à l’AUF (LAF 502), Ecole Normale Supérieure Takadoum B.P. 5118 Rabat; Morocco |
| 2. | Creator | Author's name, affiliation, country | M. EL Yamani; Laboratoire de Physique des Matériaux, Faculté des Sciences Université Mohammed V, B.P. 1014 Rabat; Morocco |
| 2. | Creator | Author's name, affiliation, country | J. Aride; Laboratoire de Physico-Chimie des Matériaux associé à l’AUF (LAF 502), Ecole Normale Supérieure Takadoum B.P. 5118 Rabat; Morocco |
| 3. | Subject | Discipline(s) | |
| 3. | Subject | Keyword(s) | |
| 4. | Description | Abstract | Mixed oxides with formula LaFe1-xCrxO3 and Fe2-2xCr2xO3, where 0≤x≤1, are studied. The samples have been prepared using solid state reaction technique in air. The X-ray diffraction spectra indicated that the samples crystallize in a corundum phase with space group ( R3c ) for Fe2-2xCr2xO3 and in the perovskite structure for LaFe1-xCrxO3. Many techniques have been used to explore the magnetic properties of the systems. High field, ZFC and FC magnetization vs. temperature, d.c. susceptibility and Mössbauer spectroscopy were carried out. High temperature magnetic susceptibility measurements and high field magnetic magnetization (H ≤ 20 T) show that the behavior of the susceptibility and the magnetization are complex. Mössbauer spectra of the solid solutions have been measured at 4.2 K and in the temperature range 77 K to 300 K. The shapes of spectra are unusual, showing strong relaxation phenomena in a wide temperature range as recently observed for many frustrated systems. The results are discussed by establishing the existence of various magnetic structures, inducing intermediate magnetic phases between the antiferromagnetic and the paramagnetic states. Preliminary magnetic phase diagrams of the systems have been established. |
| 5. | Publisher | Organizing agency, location | |
| 6. | Contributor | Sponsor(s) | |
| 7. | Date | (YYYY-MM-DD) | 09-03-2011 |
| 8. | Type | Status & genre | Peer-reviewed Article |
| 8. | Type | Type | |
| 9. | Format | File format | |
| 10. | Identifier | Uniform Resource Identifier | https://revues.imist.ma/index.php/MJCM/article/view/71 |
| 11. | Source | Title; vol., no. (year) | Moroccan Journal of Condensed Matter; Vol 3 (2000) |
| 12. | Language | English=en | en |
| 13. | Relation | Supp. Files | |
| 14. | Coverage | Geo-spatial location, chronological period, research sample (gender, age, etc.) | |
| 15. | Rights | Copyright and permissions |
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