Crystal coherence length effects on the infrared optical response of MgO thin films.
Conference
·
OSTI ID:1021614
- University of Central Florida, Orlando, FL
- Los Alamos National Laboratory, Los Alamos, NM
The role of crystal coherence length on the infrared optical response of MgO thin films was investigated with regard to Reststrahlen band photon-phonon coupling. Preferentially (001)-oriented sputtered and evaporated ion-beam assisted deposited thin films were prepared on silicon and annealed to vary film microstructure. Film crystalline coherence was characterized by x-ray diffraction line broadening and transmission electron microscopy. The infrared dielectric response revealed a strong dependence of dielectric resonance magnitude on crystalline coherence. Shifts to lower transverse optical phonon frequencies were observed with increased crystalline coherence. Increased optical phonon damping is attributed to increasing granularity and intergrain misorientation.
- Research Organization:
- Sandia National Laboratories
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1021614
- Report Number(s):
- SAND2010-4979C
- Country of Publication:
- United States
- Language:
- English
Similar Records
Crystal coherence length effects on the infrared optical response of MgO thin films
Morphology of TiN thin films grown on MgO(001) by reactive dc magnetron sputtering
Ultraviolet to far-infrared dielectric function of n -doped cadmium oxide thin films
Journal Article
·
Sun Nov 07 23:00:00 EST 2010
· Applied Physics Letters
·
OSTI ID:21464558
Morphology of TiN thin films grown on MgO(001) by reactive dc magnetron sputtering
Journal Article
·
Thu Jul 15 00:00:00 EDT 2010
· Journal of Vacuum Science and Technology. A, International Journal Devoted to Vacuum, Surfaces, and Films
·
OSTI ID:22053747
Ultraviolet to far-infrared dielectric function of n -doped cadmium oxide thin films
Journal Article
·
Thu Feb 27 19:00:00 EST 2020
· Physical Review Materials
·
OSTI ID:1770365