2008
DOI: 10.1088/0953-8984/21/3/035402
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Percolation limit and stability conditions for the spin glass state in the spinel families based on the two matrices CuCr2S4and CuCr2Se4doped by Sb ions

Abstract: The percolation limit of the appearance of the spin glass state in the compounds under study has been obtained experimentally. The conditions of stability of the spin glass state have been analyzed here on the basis of the de Almeida-Thouless theory for two spinels differing in the magnetic coupling constants. It turned out that for the higher value of the coupling constant the magnetic field influences the freezing temperature more strongly. Moreover, the greater the coupling constant the broader the range of… Show more

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Cited by 4 publications
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“…Nevertheless, in the present context it is worth to recall that according to Refs. [47,48], further dilution of the Cr sublattice with Sb atoms results in a total frustration in the orientations of the localized magnetic moments, observed as spin-glass-like behaviour in the series of nonstoichiometric compounds Cu 1+x Cr 1.5+y Sb 0.5+z Se 4+t , where −0.02 ≤ x ≤ 0.01, 0.03 ≤ y ≤ 0.35, −0.2 ≤ z ≤ −0.02 and 0.01 ≤ t ≤ 0.08.…”
Section: Discussionmentioning
confidence: 99%
“…Nevertheless, in the present context it is worth to recall that according to Refs. [47,48], further dilution of the Cr sublattice with Sb atoms results in a total frustration in the orientations of the localized magnetic moments, observed as spin-glass-like behaviour in the series of nonstoichiometric compounds Cu 1+x Cr 1.5+y Sb 0.5+z Se 4+t , where −0.02 ≤ x ≤ 0.01, 0.03 ≤ y ≤ 0.35, −0.2 ≤ z ≤ −0.02 and 0.01 ≤ t ≤ 0.08.…”
Section: Discussionmentioning
confidence: 99%