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

3 Scopus citations

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

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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