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 language | English (US) |
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Article number | 245133 |
Journal | Physical Review B |
Volume | 99 |
Issue number | 24 |
DOIs | |
State | Published - Jun 19 2019 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics