Latent track formation induced by high electronic energy loss in hexaferrites AFe12O19 (A = Ba, Sr): A magnetic investigation
作者： Ch. Houpert , N. Nguyen , F. Studer , D. Groult , M. Toulemonde
DOI: 10.1016/0168-583X(88)90748-3
关键词: Atomic physics 、 Ion 、 Hyperfine structure 、 Magnetometer 、 Irradiation 、 Amorphous solid 、 Xenon 、 Fluence 、 Mössbauer spectroscopy 、 Chemistry
摘要: Abstract Irradiation effects induced by 3.1 GeV xenon ions and 2.3 molybdenum in two hyperfrequency materials, BaFe12O19 SrFe12O19, have been investigated means of Mossbauer spectroscopy vibrating sample magnetometry. In both cases a track mechanism has considered to explain the damage rate, showing that SrFe12O19 is less sensitive than high energy heavy ion irradiation. For fluence lower 7 × 1011 Xe cm−2 it shown 4f1 + 4f2 sites structure are more affected irradiation 12k sites. Above wide distribution magnetic hyperfine field necessary fit data. It could be related transition zone separating amorphous core tracks from unperturbed matrix.
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