OpenAccess

An inelastic neutron scattering technique is employed to investigate the paramagnetic spin dynamics in a single-crystalline sample of the magnetocaloric compound MnFe4Si3. In the investigated temperature range, 1.033 x TC to 1.5 x TC , where TC is the Curie temperature, the spin fluctuations are well described by the ferromagnetic Heisenberg model predictions. [...]

Neutrons, owing to their unique properties, serve as indispensable probes for investigating the structure and dynamics of materials across various length scales. The scientific community utilizing neutron research infrastructures encompasses a diverse range of disciplines, making it challenging to quantify its scientific and societal impact. [...]

The potential solid-state [2 + 2] photodimerization of two trans-cinnamic acid derivatives, trans-4-(trifluoromethyl)cinnamic acid (4-tfmca) and trans-3-(trifluoromethyl)cinnamic acid (3-tfmca), has been studied using potassium bromide (KBr) pellets and optical spectroscopy. As opposed to taking a powder or single crystal material as a sample, herein, we used polycrystalline samples incorporated in the KBr matrix (pellet) and were able to follow the course of the photochemical reaction via optical spectroscopy. [...]

Poly(N-isopropylacrylamide) (PNIPAM) in aqueous solution forms mesoglobules above its cloud point temperature Tcp. While these are small and compact at atmospheric pressure, they are large and water-rich at high pressure. [...]