Anomalous structural phase transition properties in ReSe 2 and Au-doped ReSe 2

Yu Cheng Kao, Tony Huang, Der Yuh Lin, Ying Sheng Huang, Kwong Kau Tiong, Hsin Yi Lee, Jhih Min Lin, Hwo Shuenn Sheu, Chih Ming Lin

Research output: Contribution to journalArticle

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Abstract

The high pressure induced phase transition in rhenium diselenides (ReSe 2) and gold-doped rhenium diselenides (Au-ReSe 2) at ambient temperature have been investigated using angular-dispersive x-ray diffraction (ADXRD) under high pressure up to around 10.50 and 9.98 GPa, respectively. In situ ADXRD measurements found that the phase transition pressures of ReSe 2 and Au-ReSe 2 began at 9.98 and 8.52 GPa, respectively. Compressibilities analysis shows the relationship of along c-axis > along a-axis > along b-axis. The linear compressibility of the pressure dependence of α, β, and γ of ReSe 2 shows that a phase transition can be related to a counterclockwise rotational trend of the selenium atoms around the chain of Re 4 atoms during the decrease of the c-axis distance by a combination of stresses due to the bending effect of α and stretching effect of β. The cause of the reduction of the phase transition pressure of Au-ReSe 2 is attributed mainly to a structural distortion as evidenced by the observation of a weak clockwise rotational trend of Se atoms around the chain of Re 4 atoms in the pressure range 3.99-4.99 GPa which subsequently reversed to counterclockwise rotation under higher pressure.

Original languageEnglish
Article number024509
JournalJournal of Chemical Physics
Volume137
Issue number2
DOIs
Publication statusPublished - 2012 Jul 14

Fingerprint

Phase transitions
transition pressure
rhenium
compressibility
atoms
x ray diffraction
Rhenium
Atoms
trends
Compressibility
selenium
pressure dependence
ambient temperature
Diffraction
X rays
gold
Selenium
causes
Gold
Stretching

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Kao, Y. C., Huang, T., Lin, D. Y., Huang, Y. S., Tiong, K. K., Lee, H. Y., ... Lin, C. M. (2012). Anomalous structural phase transition properties in ReSe 2 and Au-doped ReSe 2 Journal of Chemical Physics, 137(2), [024509]. https://doi.org/10.1063/1.4733985
Kao, Yu Cheng ; Huang, Tony ; Lin, Der Yuh ; Huang, Ying Sheng ; Tiong, Kwong Kau ; Lee, Hsin Yi ; Lin, Jhih Min ; Sheu, Hwo Shuenn ; Lin, Chih Ming. / Anomalous structural phase transition properties in ReSe 2 and Au-doped ReSe 2 In: Journal of Chemical Physics. 2012 ; Vol. 137, No. 2.
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Kao, YC, Huang, T, Lin, DY, Huang, YS, Tiong, KK, Lee, HY, Lin, JM, Sheu, HS & Lin, CM 2012, 'Anomalous structural phase transition properties in ReSe 2 and Au-doped ReSe 2 ', Journal of Chemical Physics, vol. 137, no. 2, 024509. https://doi.org/10.1063/1.4733985

Anomalous structural phase transition properties in ReSe 2 and Au-doped ReSe 2 . / Kao, Yu Cheng; Huang, Tony; Lin, Der Yuh; Huang, Ying Sheng; Tiong, Kwong Kau; Lee, Hsin Yi; Lin, Jhih Min; Sheu, Hwo Shuenn; Lin, Chih Ming.

In: Journal of Chemical Physics, Vol. 137, No. 2, 024509, 14.07.2012.

Research output: Contribution to journalArticle

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