Damage of M-type baryum hexaferrites induced by GeV-heavy ion irradiations

The damage induced in single crystals of M-type baryum hexaferrites (BaFe 12O 19 and BaFe 12− x−y Co x Ti y O 19 with x ∼- 1.4; y ∼- 1.5) by 3.8 GeV 129Xe and 6.0 GeV 208Pb ion irradiations has been monitored with room temperature (RT) 57Fe Mössbauer spectrometry. The damage cross sections deduced f...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 1995-12, Vol.106 (1), p.567-572
Main Authors: Costantini, J.M., Brisard, F., Meftah, A., Toulemonde, M., Studer, F.
Format: Article
Language:English
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Summary:The damage induced in single crystals of M-type baryum hexaferrites (BaFe 12O 19 and BaFe 12− x−y Co x Ti y O 19 with x ∼- 1.4; y ∼- 1.5) by 3.8 GeV 129Xe and 6.0 GeV 208Pb ion irradiations has been monitored with room temperature (RT) 57Fe Mössbauer spectrometry. The damage cross sections deduced from the former data are compared with our previous results on polycrystalline samples. The effects of amorphous track formation on the RT ac magnetic permeability and Mössbauer spectra are studied. Comparison is also made with our previous results on another (ferri) magnetic insulator, namely Y 3Fe 5O 12, regarding the effects of disorder and track-induced strain field on the magnetic properties.
ISSN:0168-583X
1872-9584
DOI:10.1016/0168-583X(95)00771-7