Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/32229
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
Related resource: http://dx.doi.org/10.1063/1.341125
URI: http://hdl.handle.net/2445/32229
ISSN: 0021-8979
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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