Uniaxial strain in ZrSiS preserves its flat infrared optical conductivity under compression, triggers a Lifshitz transition under ~2 GPa tension that weakens screening, and tunes the dispersion of ~20 eV low-loss hyperbolic plasmons.
Science 2015, 349, 613–617
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Effect of mechanical strain on the optical properties of nodal-line semimetal ZrSiS
Uniaxial strain in ZrSiS preserves its flat infrared optical conductivity under compression, triggers a Lifshitz transition under ~2 GPa tension that weakens screening, and tunes the dispersion of ~20 eV low-loss hyperbolic plasmons.