The structure of Zn_1 xMn_xIn₂Se₄crystals grown by chemical vapour phase transport

Abstract

Abstract. Single crystals of Zn 1−x MnxIn 2 Se 4 were grown by the chemical vapour phase transport (CVT) technique. Through X-rays powder diffraction patterns and Laue diagrams of single crystals we studied the transformation from the layered rhombohedral structure of MnIn 2 Se 4 to the tetragonal structure of ZnIn 2 Se 4 . On the ZnIn 2 Se 4 side, we observe single-phase, solid solution samples for x=0.01 and x=0.25, as is the case for the MnIn 2 Se 4 side with x=1 and x= 0.87. For the intermediate concentrations x=0.35, x=0.60 and x=0.67 we observe our samples to be two-phase mixtures.

Scintillation Characteristics of CsI Crystal Doped Br under Gamma and Alpha Particles Excitation

“…In this work the Laue technique was used. By this technique it is possible to make a qualitative analysis of the degree of crystallinity of the crystals obtained by observing the diffraction spots (presence or absence of deformation) in Figure Laue crystal photographed [9].…”

Experimental evidence of the spin-glass transition in the diluted magnetic semiconductor Zn1−xMnxIn2Se4

“…Zn 1−x Mn x In 2 Se 4 samples with nominal Mn concentrations 0.01 x 1.00 were prepared by a vapour phase chemical transport technique (CVT) [14][15][16]. A detailed explanation of the growth procedure is given in [14] and [16].…”

“…Zn 1−x Mn x In 2 Se 4 samples with nominal Mn concentrations 0.01 x 1.00 were prepared by a vapour phase chemical transport technique (CVT) [14][15][16]. A detailed explanation of the growth procedure is given in [14] and [16]. The analysis of Mn content was determined by energy dispersive x-ray fluorescence spectroscopy (EDX) with a Shimadzu EDX-900 device.…”

“…In this work we have investigated the static properties of the spin freezing phenomenon observed in the Zn 1−x Mn x In 2 Se 4 system by means of dc magnetic susceptibility measurements. [16]. The cations are distributed randomly in octahedral ( ) and tetrahedral sites ( ).…”

“…The cations are distributed randomly in octahedral ( ) and tetrahedral sites ( ). (b) Unit cell of the ZnIn 2 Se 4 compound (space group I 42m) reproduced from [16]. The cations are also randomly distributed in octahedral and tetrahedral sites.…”