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Title: | Spin-glass behaviour in mixed metal oxides with a rutile-type structure |
Author: | Labarta, Amílcar Obradors, Xavier Tejada Palacios, Javier Berry, Frank J., 1947- Sarson, M. |
Keywords: | Vidres de spin Propietats magnètiques Efecte Mössbauer Metall-òxid-semiconductors Spin glasses Magnetic properties Mössbauer effect Metal oxide semiconductors |
Issue Date: | 1988 |
Publisher: | American Institute of Physics |
Abstract: | We report here on the magnetic properties of compounds of composition Fe1−xCrxSbO4 and Fe1−xGaxSbO4. The introduction of paramagnetic Cr3+ and diamagnetic Ga3+ into the rutile‐related iron antimonate lattice does not destroy the antisite atomic ordering which exists in iron antimonate of composition FeSbO4. The initial slope of the Curie temperature dependence on x is similar in both series, indicating that Fe3+‐Cr3+ interactions are very small. The magnetic susceptibility measurements recorded from the compounds of composition Fe1−xCrxSbO4, x<0.4, and Fe0.9Ga0.1SbO4 show them to behave as spin glasses at low temperatures. The inhibition of compounds of the type Fe1−xCrxSbO4, x>0.4, and Fe1−xGaxSbO4, x>0.1 to undergo a spin‐glass transition above 4.2 K is associated with a dilution effect. |
Note: | Reproducció del document publicat a: http://dx.doi.org/10.1063/1.341125 |
It is part of: | Journal of Applied Physics, 1988, vol. 63, num. 8, p. 4337-4339 |
URI: | http://hdl.handle.net/2445/32229 |
Related resource: | http://dx.doi.org/10.1063/1.341125 |
ISSN: | 0021-8979 |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
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