Low-temperature structural transitions in the phonon-glass thermoelectric material β-Zn4Sb3

Ordering of Zn interstitials and defects

Johanna Nylén, Sven Lidin, Magnus Andersson, Bo Brummerstedt Iversen, Hongxue Liu, Nathan Newman, Ulrich Häussermann

Research output: Contribution to journalArticle

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Abstract

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.

Original languageEnglish (US)
Pages (from-to)834-838
Number of pages5
JournalChemistry of Materials
Volume19
Issue number4
DOIs
StatePublished - Feb 20 2007

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Phase transitions
Glass
Defects
Acoustic impedance
Chemical analysis
Temperature
Thermal conductivity
X ray diffraction

ASJC Scopus subject areas

  • Materials Chemistry
  • Materials Science(all)

Cite this

Low-temperature structural transitions in the phonon-glass thermoelectric material β-Zn4Sb3 : Ordering of Zn interstitials and defects. / Nylén, Johanna; Lidin, Sven; Andersson, Magnus; Iversen, Bo Brummerstedt; Liu, Hongxue; Newman, Nathan; Häussermann, Ulrich.

In: Chemistry of Materials, Vol. 19, No. 4, 20.02.2007, p. 834-838.

Research output: Contribution to journalArticle

Nylén, Johanna ; Lidin, Sven ; Andersson, Magnus ; Iversen, Bo Brummerstedt ; Liu, Hongxue ; Newman, Nathan ; Häussermann, Ulrich. / Low-temperature structural transitions in the phonon-glass thermoelectric material β-Zn4Sb3 : Ordering of Zn interstitials and defects. In: Chemistry of Materials. 2007 ; Vol. 19, No. 4. pp. 834-838.
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