Strong coupling between discrete phonon and continuous electron–hole pair excitations can
induce a pronounced asymmetry in the phonon line shape, known as the Fano resonance …

The optical properties of the new iron-based superconductor CsCa 2 Fe 4 As 4 F 2 with T c≃
29 K have been determined. In the normal state a good description of the low-frequency …

The temperature dependence of ab-plane optical conductivity of CaKFe 4 As 4 has been
measured below and above its superconducting transition temperature T c≃ 35.5 K. In the …

Hybridization between the localized f electrons and the delocalized conduction electrons
together with the crystal electric field (CEF) play a determinant role in governing the many …

The detailed temperature dependence of the infrared-active mode in Fe 1.03 Te (TN≃ 68 K)
and Fe 1.13 Te (TN≃ 56 K) has been examined, and the position, width, strength, and …

In the bilayer ReS2 channel of a field-effect transistor (FET), we demonstrate using Raman
spectroscopy that electron do** (n) results in softening of frequency and broadening of …

We performed an infrared spectroscopic study on a single crystal of Sr 2 VO 3 FeAs grown
by a self-flux method. This layered material system consists of two alternative layers of [SrVO …