Infrared spectroscopy study of the nodal-line semimetal candidate ZrSiTe under pressure: Hints for pressure-induced phase transitions

J. Ebad-Allah, M. Krottenmüller, J. Hu, Y. L. Zhu, Z. Q. Mao, C. A. Kuntscher

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We studied the effect of external pressure on the optical response of the nodal-line semimetal candidate ZrSiTe by reflectivity measurements. At pressures of a few GPa, the reflectivity, optical conductivity, and loss function are strongly affected in the whole measured frequency range (200-16500cm-1), indicating drastic changes in the electronic band structure. The pressure-induced shift of the electronic bands affects both the intraband and interband transitions. We find anomalies in the pressure dependence of several optical parameters at the pressures Pc1≈4.1GPa and Pc2≈6.5GPa, suggesting the occurrence of two phase transitions of either structural or electronic type.

Original languageEnglish (US)
Article number245133
JournalPhysical Review B
Volume99
Issue number24
DOIs
StatePublished - Jun 19 2019

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Metalloids
metalloids
Infrared spectroscopy
Phase transitions
infrared spectroscopy
electronics
reflectance
Optical conductivity
Optical losses
pressure dependence
frequency ranges
Band structure
occurrences
anomalies
conductivity
shift

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Ebad-Allah, J. ; Krottenmüller, M. ; Hu, J. ; Zhu, Y. L. ; Mao, Z. Q. ; Kuntscher, C. A. / Infrared spectroscopy study of the nodal-line semimetal candidate ZrSiTe under pressure : Hints for pressure-induced phase transitions. In: Physical Review B. 2019 ; Vol. 99, No. 24.
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Infrared spectroscopy study of the nodal-line semimetal candidate ZrSiTe under pressure : Hints for pressure-induced phase transitions. / Ebad-Allah, J.; Krottenmüller, M.; Hu, J.; Zhu, Y. L.; Mao, Z. Q.; Kuntscher, C. A.

In: Physical Review B, Vol. 99, No. 24, 245133, 19.06.2019.

Research output: Contribution to journalArticle

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AU - Ebad-Allah, J.

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AU - Hu, J.

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AB - We studied the effect of external pressure on the optical response of the nodal-line semimetal candidate ZrSiTe by reflectivity measurements. At pressures of a few GPa, the reflectivity, optical conductivity, and loss function are strongly affected in the whole measured frequency range (200-16500cm-1), indicating drastic changes in the electronic band structure. The pressure-induced shift of the electronic bands affects both the intraband and interband transitions. We find anomalies in the pressure dependence of several optical parameters at the pressures Pc1≈4.1GPa and Pc2≈6.5GPa, suggesting the occurrence of two phase transitions of either structural or electronic type.

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