Raman phonons of $\alpha$-FeTe and Fe${}_{1.03}$Se${}_{0.3}$Te${}_{0.7}$ single crystals

Tian-Long Xia, D. Hou, S. C. Zhao +7

The polarized Raman scattering spectra of nonsuperconducting $\alpha$-FeTe and of the newly discovered, As-free superconductor Fe${}_{1.03}$Se${}_{0.3}$Te${}_{0.7}$ are measured at room tempe…