Neutron diffraction study of the wurtzite-structure dilute magnetic semiconductor Zn0.45Mn0.55Se
1987; American Institute of Physics; Volume: 61; Issue: 8 Linguagem: Inglês
10.1063/1.338717
ISSN1520-8850
AutoresT. M. Giebułtowicz, J. J. Rhyne, J. K. Furdyna, U. Debska,
Tópico(s)Magnetic and transport properties of perovskites and related materials
ResumoWe report the first results of neutron diffraction studies of magnetic ordering phenomena in a wurtzite-structured diluted magnetic (semimagnetic) semiconductor Zn0.45Mn0.55Te. At low temperatures the system exhibits a short-range antiferromagnetic ordering, closely related to the antiferromagnetic structure seen in the wurtzite form of β-MnS. This type of ordering indicates short-range and antiferromagnetic only interactions between the Mn spins, in agreement with present theories of exchange mechanism in DMS materials. Similarly as in cubic DMS systems, the magnetic correlation range in Zn0.45Mn0.55Te exhibits a pronounced anisotropy.
Referência(s)