TY - JOUR
T1 - Low-temperature structural transitions in the phonon-glass thermoelectric material β-Zn4Sb3
T2 - Ordering of Zn interstitials and defects
AU - Nylén, Johanna
AU - Lidin, Sven
AU - Andersson, Magnus
AU - Iversen, Bo Brummerstedt
AU - Liu, Hongxue
AU - Newman, Nathan
AU - Häussermann, Ulrich
PY - 2007/2/20
Y1 - 2007/2/20
N2 - The low-temperature phase transitions of thermoelectric Zr 4Sb3 have been characterized using singlecrystal X-ray diffraction, electrical resistance, and thermal conductivity measurements. Room-temperature stable, disordered β-Zn4Sb3 undergoes a phase transition at 254 K to ordered α-n4Sb 3, which has an ideal composition Zn4Sb10. Below 235 K, a second low-temperature phase (α′-Zn 4Sb3) can be detected. The sequence of phase transitions β-α-α′ is reversible. The α-α′ transformation originates from a slight Zn deficiency with respect to Zn 13Sb10Sb10. The actual composition of n 4Sb3 is Zn13-δSb10.
AB - The low-temperature phase transitions of thermoelectric Zr 4Sb3 have been characterized using singlecrystal X-ray diffraction, electrical resistance, and thermal conductivity measurements. Room-temperature stable, disordered β-Zn4Sb3 undergoes a phase transition at 254 K to ordered α-n4Sb 3, which has an ideal composition Zn4Sb10. Below 235 K, a second low-temperature phase (α′-Zn 4Sb3) can be detected. The sequence of phase transitions β-α-α′ is reversible. The α-α′ transformation originates from a slight Zn deficiency with respect to Zn 13Sb10Sb10. The actual composition of n 4Sb3 is Zn13-δSb10.
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U2 - 10.1021/cm062384j
DO - 10.1021/cm062384j
M3 - Article
AN - SCOPUS:33947153872
SN - 0897-4756
VL - 19
SP - 834
EP - 838
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 4
ER -