4 papers
Optical conductivity of layered topological semimetal TaNiTe
Jakov Budić, Serena Nasrallah, D. Santos-Cottin +9
We present an infrared spectroscopy study of the layered topological semimetal TaNiTe, a material with a quasi-one-dimensional structure and strong in-plane anisotropy. Despite…
Correlation between magnetism and the Verwey transition in magnetite
Karolina Podgórska, Mateusz A. Gala, Kamila Komędera +11
Seeking to unravel the enigmatic Verwey transition and its interplay with magnetism, we have conducted comprehensive measurements on the temperature-dependent electrical resistivit…
Magneto-optical response of magnetic semiconductors EuCd2X2 (X= P, As, Sb)
S. Nasrallah, D. Santos-Cottin, F. Le Mardele +16
In this study, we identify EuCd2X2 (for X = P, As, Sb) as a series of magnetic semiconductors. We examine how the band gap of the series responds to X changing from phosphorus (P),…
Revealing the KH2PO4 soft-mode coupling mechanism with infrared spectroscopy under pressure
D. Santos-Cottin, S. Nasrallah, F. Capitani +4
We measured the far-infrared reflectivity of a KH2PO4 single crystal up to pressures of 2 GPa in the ferroelectric and paraelectric phases. We find that the nu4 vibrational mode of…