Publications by authors named "Roman Kuzian"
The discovery of high-Tc superconductivity in cuprates in 1986 moved strongly correlated systems from exotic worlds interesting only for pure theorists to the focus of solid-state research. In recent decades, the majority of hot topics in condensed matter physics (high-Tc superconductivity, colossal magnetoresistance, multiferroicity, ferromagnetism in diluted magnetic semiconductors, etc.) have been related to strongly correlated transition metal compounds.
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- The study investigates the quantum magnetic spin-chain materials Li(2)CuO(2) and CuGeO(3) using high-resolution resonant inelastic soft x-ray scattering.
- By targeting the oxygen K edge, a significant excitation at around 3.5 eV is observed in both materials, which is linked to a specific type of exciton.
- The research highlights the temperature-dependent nature of this excitation, allowing for sensitive measurements of short-range spin correlations at the millielectronvolt scale.