MICROSCOPY AND MOSSBAUER STUDIES OF IRON STATES IN DOPED GALIUM ANTIMONIDE

C Turta, V Teodorescu, A Mihalache, E Gheorghitsa, G Volodina, G Filoti
unpublished
A single crystal of gallium antimonide doped with 3 at % 57 Fe was obtained via the Czochralski method. The Mössbauer investigations revealed four iron patterns: one diamagnetic and three Fe magnetically ordered sites, even at room temperature. The data suggested that iron-containing compounds are formed at grain boundaries, and the microscopy images revealed the presence of two types of boundaries and holes of different shape and size. The EDX spectrum provided different amounts of Fe in the
more » ... ystal (GaSb) and, respectively, at the boundary area.
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