|About this Abstract
||Materials Science & Technology 2015
||Ceramic Optical Materials
||NMR Spectroscopy of Paramagnetic Doped Ceramics to Determine Site Occupancy and Distribution
||Ryan J McCarty, Jonathan F Stebbins
|On-Site Speaker (Planned)
||Ryan J McCarty
High resolution solid state Nuclear Magnetic Resonance (NMR) spectroscopy has been widely used to investigate structure and ordering in diamagnetic ceramic solids. A novel approach is to examine compounds doped with paramagnetic cations, in which unpaired electrons can in some cases produce distinct resonances in the spectra of NMR active nuclides. These resonances are can be quantified for 1st and 2nd neighbor interactions, placing bounds on paramagnetic cation site preference and distribution. This approach may be valuable when structurally characterizing optical materials such as photonics and phosphors.
Examples of the successful applications of this approach include REE in Y, La phosphates (31P), transition metals in silicate garnets (27Al and 29Si) and in olivines (29Si), and new work on Nd in YAG (27Al).
||Planned: MS&T all conference proceedings CD