Master of Science in Physics
Physics and Astronomy
Lon Spight, Committee Chair
First Committee Member
Dave Schiferl, Committee Co-Chair
Second Committee Member
Third Committee Member
Graduate Faculty Representative
Number of Pages
The dual partial phonon density of states (DOS) from two different Mossbauer isotopes (161Dy and 57Fe) in the same material (DyFe3) was successfully measured using the nuclear resonant inelastic x-ray scattering (NRIXS) technique at high pressure. Nuclear inelastic scattering measurements yield an in-depth understanding of the element-specific dynamic properties. The Debye temperatures, the Lamb-Mossbauer factor (fLM), and the vibrational contributions to the Helmholtz free energy (Fvib), specific heat (cV ), entropy (Svib) and internal energy (Uvib) are calculated directly from the phonon density of states.
57 Fe; 161Dy; DyFe3; Dysprosium; Element properties; Iron; Mossbauer isotopes; Phonon density of states
Biological and Chemical Physics | Condensed Matter Physics
Tanis, Elizabeth Anne, "Photon density of states of 47-iron and 161-dysprosium in DyFe3 by nuclear resonant inelastic x-ray scattering under high pressure" (2010). UNLV Theses, Dissertations, Professional Papers, and Capstones. 17.