Crystal growth, structural and electrical properties of (Cu^sub 1-х^Ag^sub x^)^sub 7^GeS^sub 5^I superionic solid solutions

Single crystals of (Cu1-хAgx)7GeS5I solid solutions were grown by vertical zone crystallization method. XRD studies have shown that they crystallize in face-centered cubic lattice of the argyrodite structure (space group ..., Z = 4). Structural studies were performed on the basis of original structu...

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Bibliographic Details
Published in:Solid state ionics 2019-01, Vol.329, p.119
Main Authors: Studenyak, IP, Pogodin, AI, Kokhan, OP, Kavaliukė, V, Šalkus, T, Kežionis, A, Orliukas, AF
Format: Article
Language:English
Subjects:
Conductivity
Copper
Crystal growth
Crystal structure
Crystallization
Diffraction
Electric properties
Electrical measurement
Electrical properties
Electrical resistivity
Face centered cubic lattice
Rietveld method
Silver
Single crystals
Solid solutions
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Summary:Single crystals of (Cu1-хAgx)7GeS5I solid solutions were grown by vertical zone crystallization method. XRD studies have shown that they crystallize in face-centered cubic lattice of the argyrodite structure (space group ..., Z = 4). Structural studies were performed on the basis of original structure model by means of Rietveld refinement method. Electrical measurements were carried out in the temperature interval 300–360 K and in the range of frequencies 10 Hz–10 GHz. Temperature and frequency dependences of electrical conductivity were analyzed. Influence of cation substitution on the electrical conductivity as well as relationship between structural and electrical properties of (Cu1-хAgx)7GeS5I solid solutions were studied.(ProQuest: ... denotes formulae omitted.)
ISSN:0167-2738
1872-7689
DOI:10.1016/j.ssi.2018.11.020