Microscopy and mossbauer studies of iron states in doped galium antimonide
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TURTA, Constantin; MIHĂLACHE, Alexei; TEODORESCU, V.; GHEORGHITA, Eugene; VOLODINA, Galina; FILOTI, George. Microscopy and mossbauer studies of iron states in doped galium antimonide. In: Moldavian Journal of the Physical Sciences. 2014, nr. 1-2(13), pp. 8-19. ISSN 1810-648X.
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Moldavian Journal of the Physical Sciences
Numărul 1-2(13) / 2014 / ISSN 1810-648X /ISSNe 2537-6365

Microscopy and mossbauer studies of iron states in doped galium antimonide

Pag. 8-19

Turta Constantin1, Mihălache Alexei2, Teodorescu V.3, Gheorghita Eugene2, Volodina Galina4, Filoti George3
 
1 Institute of Chemistry of the Academy of Sciences of Moldova,
2 Moldova Tiraspol State University,
3 National Institute of Materials Physics Bucharest-Magurele,
4 Institute of Applied Physics, Academy of Sciences of Moldova
 
Disponibil în IBN: 29 mai 2015


Rezumat

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 resence of two types of boundaries and holes of different shape and size. The EDX spectrum provided different amounts of Fe in the crystal (GaSb) and, respectively, at the boundary area.