Title:
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Quenching of ferrimagneticlike ordering in SrCr8Fe4O19 hexagonal ferrite
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Author:
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Obradors, Xavier; Labarta, Amílcar; Tejada Palacios, Javier; Pernet, Michel; Tholence, J. L.; Saint-Paul, M.; Barbara, B.
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Other authors:
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Universitat de Barcelona |
Abstract:
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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 This unusual feature is interpreted as indicative of a transition where long range ferrimagnetic ordering has been replaced by a correlated spin‐glass phase with finite spin correlation length. |
Subject(s):
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-Espectroscòpia Mössbauer -Propietats magnètiques -Ferrita -Vidres de spin -Física de l'estat sòlid -Mössbauer spectroscopy -Magnetic properties -Ferrite -Spin glasses -Solid state physics |
Rights:
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(c) American Institute of Physics, 1988
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Document type:
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Article Article - Published version |
Published by:
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American Institute of Physics
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