Study of critical properties in B-spinel ZnxCd1-xCr2Se4 (0.35 ≤ x ≤ 0.58)
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| 1. | Title | Title of document | Study of critical properties in B-spinel ZnxCd1-xCr2Se4 (0.35 ≤ x ≤ 0.58) |
| 2. | Creator | Author's name, affiliation, country | N. Benzakour; Laboratoire de physique du solide. Département de physique, Faculté des Sciences Dhar Mahraz B.P, 1796 Atlas –Fès; Morocco |
| 2. | Creator | Author's name, affiliation, country | M. Hamedoun; Laboratoire de physique du solide. Département de physique, Faculté des Sciences Dhar Mahraz B.P, 1796 Atlas –Fès; Morocco |
| 2. | Creator | Author's name, affiliation, country | M. Houssa; Laboratoire de physique du solide. Département de physique, Faculté des Sciences Dhar Mahraz B.P, 1796 Atlas –Fès; Morocco |
| 2. | Creator | Author's name, affiliation, country | A. Hourmatallah; Laboratoire de physique du solide. Département de physique, Faculté des Sciences Dhar Mahraz B.P, 1796 Atlas –Fès École Normale Supérieure B.P 5206 Fès; Morocco |
| 2. | Creator | Author's name, affiliation, country | F. Mahjoubi; Laboratoire de physique du solide. Département de physique, Faculté des Sciences Dhar Mahraz B.P, 1796 Atlas –Fès; Morocco |
| 3. | Subject | Discipline(s) | |
| 3. | Subject | Keyword(s) | |
| 4. | Description | Abstract | The critical behaviour of the B-spinel ZnxCd1-xCr2Se4 systems is studied in the concentration range 0.35≤x≤0.58. The mean field theory and the ferromagnetic spin-wave theory at low temperatures are combined to calculate the exchange integrals up to the third nearest neighbours. The ferromagnetic critical region is studied by the high-temperature series expansion (H.T.S.) extrapolated with the Padé (P.A) approximants method. The critical temperatures T c and the critical exponents associated with the magnetic susceptibility (γ) and the correlation length (ν) are estimated. The obtained values of T c are in good agreement with those obtained by magnetic measurements. The values of γ and ν are sensitive to the dilution ratio x. For the compounds situated in the ferromagnetic region ( 0.35≤x≤0.41), they are close to those of 3D Heisenberg model. For the compounds presenting re-entrant behaviour ( 0.41≤x≤0.58 ), γ and ν deviate slowly from those of this model and approach the values found in re-entrant systems. |
| 5. | Publisher | Organizing agency, location | |
| 6. | Contributor | Sponsor(s) | |
| 7. | Date | (YYYY-MM-DD) | 07-03-2011 |
| 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/48 |
| 11. | Source | Title; vol., no. (year) | Moroccan Journal of Condensed Matter; Vol 2 (1999) |
| 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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