Chemical vapour transport and structural characterization of layered MnIn2Se4 single crystals
1990; Elsevier BV; Volume: 104; Issue: 3 Linguagem: Inglês
10.1016/0022-0248(90)90002-3
ISSN1873-5002
AutoresGary L. Doll, M. Lux‐Steiner, Ch. Kloc, J. Baumann, E. Bücher,
Tópico(s)Solid-state spectroscopy and crystallography
ResumoLarge single crystals of the semiconductor MnIn2Se4 have been grown by the chemical vapour phase transport technique using AlCl3 as transport agent. The plate-like crystals had a size of up to 1 cm2. Thermodynamic considerations revealed that Mn-Al-Cl complexes are important for the chemical vapour transport. It was found that MnIn2Se4 has a rhombohedral unit cell belonging to the space group R3m with the lattice parameters of a = 4.05(6) Å and c = 39.4(9) Å at 300 K. The thermal expansion coefficients were investigated between 80 and 300 K. According to the crystal structure of ZnIn2S4, a crystal structure model of MnIn2Se4 was proposed, but the distribution of the cations Mn and In in the unit cell could not be completely determined.
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