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Magnetic studies and critical behaviour in ZnxCd1-xCr2Se4 compounds (0.35≤ x ≤ 0.45)


 
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1. Title Title of document Magnetic studies and critical behaviour in ZnxCd1-xCr2Se4 compounds (0.35≤ x ≤ 0.45)
 
2. Creator Author's name, affiliation, country M. Hamedoun; Laboratoire de Physique du Solide, Department de Physique. Faculté des Sciences Dhar Matra: E. P,1796 Atlas -Fés; Morocco
 
2. Creator Author's name, affiliation, country A. Hourmatallah; Laboratoire de Physique du Solide, Department de Physique. Faculté des Sciences Dhar Matra: E. P,1796 Atlas -Fés; Morocco
 
2. Creator Author's name, affiliation, country N. Benzakour; Laboratoire de Physique du Solide, Department de Physique. Faculté des Sciences Dhar Matra: E. P,1796 Atlas -Fés; Morocco
 
2. Creator Author's name, affiliation, country F. Mahjoubi; Laboratoire de Physique du Solide, Department de Physique. Faculté des Sciences Dhar Matra: E. P,1796 Atlas -Fés; Morocco
 
2. Creator Author's name, affiliation, country M. Houssa; Laboratoire de Physique du Solide, Department de Physique. Faculté des Sciences Dhar Matra: E. P,1796 Atlas -Fés; Morocco
 
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4. Description Abstract Magnetization measurements were presented in this paper for the spinel solid solutions ZnxCd1-xCr2Se4 for x=0.35, 0.41 and 0.45. The Cr moment is 2.8µB/Cr where the magnetization saturates for fields up to 10 KOe at low temperature. The ferromagnetic scaling properties permit to determine the critical temperature Tc; and the critical exponents b, g and d . Whereas the compounds with x=0.35 and 0.41 exhibit exponents compatible with a 3D Heisenberg ferromagnetic model, a slight increase of b, g and decrease of d were round for x=0.45 The Kadanoff scaling law g =b(d - I) is satisfied by the experimental data. Using the mean field theory and the spin-wave theory at low temperature, the exchange integrals were calculated up to the third nearest neighbors (tnn).
 
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7. Date (YYYY-MM-DD) 07-03-2011
 
8. Type Status & genre Peer-reviewed Article
 
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9. Format File format PDF
 
10. Identifier Uniform Resource Identifier https://revues.imist.ma/index.php/MJCM/article/view/5
 
11. Source Title; vol., no. (year) Moroccan Journal of Condensed Matter; Vol 1 (1998)
 
12. Language English=en en
 
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