Zn13Sb10: A Structural and Landau Theoretical Analysis of Its Phase Transitions
Citations Over TimeTop 10% of 2006 papers
Abstract
Composition, crystal structures, polymorphic transformations, and stability of the thermoelectric material known in the literature as “Zn4Sb3” have been studied on a polycrystalline sample and Bi-flux-grown single crystals using X-ray diffraction techniques, resistance, and Seebeck coefficient measurements at various temperatures ranging from 4 to 773 K. Microprobe analysis yields the composition of the flux-grown crystals to be close to Zn13Sb10, with minor Bi doping. High-temperature X-ray and Seebeck coefficient studies show that the phase is unstable at high temperatures in a vacuum because of Zn losses. Both X-ray diffraction and resistivity measurements indicate the presence of two consecutive symmetry-breaking transitions below room temperature, in agreement with our previous results on polycrystalline samples. Application of Landau theory suggests that the first R3̄c → C2/c symmetry breaking may be second-order in nature. The second, low-temperature symmetry breaking may proceed along two routes. One of these pathways, a first-order C2/c → C1 symmetry reduction, may lead to an incommensurate structure and is consistent with our experimental observations.
Related Papers
- → Improvement of the thermoelectric characteristics of Fe-doped misfit-layered Ca3Co4−xFexO9+δ (x=, 0.05, 0.1, and 0.2)(2006)101 cited
- → Effect of Manganese Dioxide Nanorods on the Thermoelectric Properties of Cement Composites(2018)73 cited
- → Connectivity-driven bi-thermoelectricity in heteroatom-substituted molecular junctions(2018)33 cited
- → Thermoelectric Properties and Performance of n-Type and p-Type Graphite Intercalation Compounds(2014)24 cited
- → Influence of the sheet metal Seebeck coefficient on wear detection based on thermoelectric measurement(2021)1 cited