• Corpus ID: 238857026

A Low Temperature Structural Transition in Canfieldite, Ag$_8$SnS$_6$, Single Crystals

  title={A Low Temperature Structural Transition in Canfieldite, Ag\$\_8\$SnS\$\_6\$, Single Crystals},
  author={Tyler J. Slade and Volodymyr Gvozdetskyi and John M. Wilde and Andreas Kreyssig and Elena Gati and Lin‐Lin Wang and Yaroslav Mudryk and Raquel de Almeida Ribeiro and Vitalij K. Pecharsky and Julia V. Zaikina and Sergey L. Budko and Paul C. Canfield},
Canfieldite, Ag8SnS6, is a semiconducting mineral notable for its high ionic conductivity, photosensitivity, and low thermal conductivity. We report the solution growth of large single crystals of Ag8SnS6 of mass up to 1 g from a ternary Ag-Sn-S melt. On cooling from high temperature, Ag8SnS6 undergoes a known cubic (F 4̄3m) to orthorhombic (Pna21) phase transition at ≈ 460 K. By studying the magnetization and thermal expansion between 5–300 K, we discover a second structural transition at… 

Figures from this paper


Ag2Se to KAg3Se2: Suppressing Order-Disorder Transitions via Reduced Dimensionality.
The results imply that dimensional reduction may be used as a design strategy to frustrate order-disorder phenomena while retaining desirable electronic and thermal properties.
High Thermoelectric Figure of Merit of Ag 8 SnS 6 Component Prepared by Electrodeposition Technique
A new thermoelectric material Ag8SnS6, with ultra-low thermal conductivity in thin film shape, is prepared on indium tin oxide coated glass (ITO) substrates using a chemical process via the
Intrinsically minimal thermal conductivity in cubic I-V-VI2 semiconductors.
Measurements of the thermal conductivity of high-quality crystals of the cubic I-V-VI2 semiconductors AgSbTe2 and AgBiSe2 show members of this family of compounds are most promising for thermoelectric applications, particularly as p-type materials.
Ag 8 SnSe 6 argyrodite synthesis and optical properties
Abstract The Ag 8 SnSe 6 argyrodite compound was synthesized by the direct melting of the elementary Ag, Sn and Se high purity grade stoichiometric mixture in a sealed silica ampoule. The prepared
Crystal Structure of -Ag8SnSe6.
Abstract The crystal structure of the low-temperature modification (β) of Ag 8 SnSe 6 was investigated using X-ray powder diffraction. The compound crystallizes in the orthorhombic unit cell (space
CsAg5Te3: a new metal-rich telluride with a unique tunnel structure
Abstract The synthesis and structure of a new ternary silver telluride, CsAg5Te3, is described. The compound was prepared from a Cs2Te CaTe Te flux but it can also be prepared from a direct
Thermally insulative thermoelectric argyrodites
Abstract Ag/Cu-based argyrodites have recently received extensive attention as promising thermoelectric materials. This can be largely understood by the hierarchical chemical bonding structure that
Enhancement of Power Factor for Inherently Poor Thermal Conductor Ag8GeSe6 by Replacing Ge with Sn
Superionic argyrodites have been identified as thermoelectric materials with inherent ultralow lattice thermal conductivity because of liquid-like behavior of cations in a relatively larger unit
Development of viable solutions for the synthesis of sulfur bearing single crystals
The discovery of high temperature superconductivity in FeAs and FeSe based compounds has once again focused the condensed matter community on the need to systematically explore compounds containing
Zur Kenntnis des Argyrodit-Strukturtyps: Die Kristallstruktur von Ag8SiS6 / The Argyrodite Structure Type : The Crystal Structure of Ag8SiS6
The room temperature modification of Ag8SiS6 is orthorhombic, space group Pna21, with α = 15.024, b = 7.428, c = 10.533 Å, Z = 4. A complete single crystal X-ray structure analysis shows the