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Title: Quenching of ferrimagneticlike ordering in SrCr8Fe4O19 hexagonal ferrite
Author: Obradors, Xavier
Labarta, Amílcar
Tejada Palacios, Javier
Pernet, Michel
Tholence, J. L.
Saint-Paul, M.
Barbara, B.
Keywords: Espectroscòpia Mössbauer
Propietats magnètiques
Vidres de spin
Física de l'estat sòlid
Mössbauer spectroscopy
Magnetic properties
Spin glasses
Solid state physics
Issue Date: 1988
Publisher: American Institute of Physics
Abstract: We report here measurements of high field (H≤150 kOe) isothermal magnetization, dc and ac susceptibility, and Mossbauer spectroscopy of the exchange frustrated insulator SrCr8Fe4O19. The isothermal magnetization and Mossbauer spectroscopy results are consistent with a ferrimagneticlike transition at TC≊250 K. Low field dc and ac susceptibility measurements reveal a reentrant spin‐glass transition at low temperature but they fail to show any anomaly at the nominal Curie temperature TC. This unusual feature is interpreted as indicative of a transition where long range ferrimagnetic ordering has been replaced by a correlated spin‐glass phase with finite spin correlation length.
Note: Reproducció digital del document proporcionada per AIP i
It is part of: Journal of Applied Physics, 1988, vol. 63, núm. 8, p. 4091-4093
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ISSN: 0021-8979
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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