Location
University of Nevada, Las Vegas
Start Date
3-8-2010 9:00 AM
End Date
3-8-2010 12:00 PM
Description
Crystal size reduction in bulk materials changes the structural and magnetic properties considerably [1]. More importantly the transition pressure is strongly influenced by temperature, pressure, and the crystallite size effect. Rare earth europium chalcogenides crystallize in the NaCl (rock salt) type structure. The interest in Eu nanomaterials is motivated by the possibility of their use in magnetic devices [2,3]. Recent studies suggest that europium chalcogenide nanocrystals exhibit significant changes in their structural and magnetic properties, compared to bulk chalcogenides, when the nanocrystal diameter decreases. The crystal structure and phase transition behavior of EuS nanoparticles have been investigated and compared as a function of pressure with the bulk material.
Keywords
High pressure crystallography; High pressure (Science) — Research; Europium; Nanocrystals; Sulfides
Disciplines
Biological and Chemical Physics | Mineral Physics | Physical Sciences and Mathematics | Physics
Language
English
High pressure structural studies on EuS nano particles up to 52 GPa
University of Nevada, Las Vegas
Crystal size reduction in bulk materials changes the structural and magnetic properties considerably [1]. More importantly the transition pressure is strongly influenced by temperature, pressure, and the crystallite size effect. Rare earth europium chalcogenides crystallize in the NaCl (rock salt) type structure. The interest in Eu nanomaterials is motivated by the possibility of their use in magnetic devices [2,3]. Recent studies suggest that europium chalcogenide nanocrystals exhibit significant changes in their structural and magnetic properties, compared to bulk chalcogenides, when the nanocrystal diameter decreases. The crystal structure and phase transition behavior of EuS nanoparticles have been investigated and compared as a function of pressure with the bulk material.
Comments
Poster research sponsored by NSF REU Physics