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Morin transition in annealed iron implanted garnets

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Abstract

Y3Fe5O12, Y3Al5O12 and Gd3Ga5O12 single crystal granets were implanted with 1017iron.cm−2. Complementary techniques: CEMS, TEM and XRD at glancing angles have allowed to follow the behavior of implanted iron during thermal annealings. For Y3Fe5O12 large α-Fe2O3 particles are formed after annealings and at 1200°C occurs a low temperature regime of the Morin transition at room temperature. For Y3Al5O12, due to aluminium substitution in the precipitates, the Morin transition is only detected after an annealing at 1300°C whereas in Gd3Ga5O12 no Morin transition is observed.

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Authors and Affiliations

  1. Institut de Physique Nucléaire (et IN2P3), Université Claude Bernard Lyon-1, 43, Bd du 11 Novembre 1918, 69622, Villeurbanne Cedex, France

    G. Marest & N. Kornilios

  2. Département de Physique des Matériaux, Université Claude Bernard Lyon-1, 43, Bd du 11 November 1918, 69622, Villeurbanne Cedex, France

    A. Perez

  3. Laboratoire d’Electronique et de Technologie de l’Informatique, C.E.N. Grenoble, 38X, 38041, Grenoble Cedex, France

    F. Ravel & P. Gerard

  4. Laboratoire de Rayons X, C.N.R.S., 38042, Grenoble Cedex, France

    B. Gilles & M. Brunel

Authors
  1. G. Marest
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  2. N. Kornilios
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  3. A. Perez
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  4. F. Ravel
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  5. P. Gerard
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  6. B. Gilles
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  7. M. Brunel
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Marest, G., Kornilios, N., Perez, A. et al. Morin transition in annealed iron implanted garnets. Hyperfine Interact 35, 943–946 (1987). https://doi.org/10.1007/BF02394529

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  • DOI: https://doi.org/10.1007/BF02394529

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