CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 11687 > Article
Presentation
5 March 2021 Electronic, thermal, and structural properties of zinc gallate from first-principles calculations
Marco D. Santia, Stefan C. Badescu, David C. Look
Author Affiliations +
Proceedings Volume 11687, Oxide-based Materials and Devices XII; 116870Z (2021) https://doi.org/10.1117/12.2586359
Event: SPIE OPTO, 2021, Online Only
Abstract
ZnGa2O4 is a ultra-wide band bandgap transparent oxide with electron transport properties similar to those of the popular b-Ga2O3 but with a higher lattice symmetry. Recent experimental work has been producing high-quality ZnGa2O4 crystals. Here we present our ongoing first-principles modeling work on the structural, thermal, and electronic properties of ZnGa2O4. Elastic stiffness tensor modeling based on symmetry-allowed deformations provides an insight into the effect of symmetry on lattice dynamical properties. We obtain thermodynamical properties such as thermal expansion in the quasiharmonic approximation based on phonons from finite-displacement supercell approach. The phonon dispersions and density of states are compared to those of b-Ga2O3. We find a large number of optical phonons at low energies <15 meV but with higher symmetry by comparison to b-Ga2O3. The large number of optical modes has a signature both in quantum magnetoconductance measurements and in the breakdown field, the latter being a metric relevant for applications in power electronics.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Marco D. Santia, Stefan C. Badescu, and David C. Look "Electronic, thermal, and structural properties of zinc gallate from first-principles calculations", Proc. SPIE 11687, Oxide-based Materials and Devices XII, 116870Z (5 March 2021); https://doi.org/10.1117/12.2586359
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
;
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Zinc
Phonons
Crystals
Electron transport
Oxides
Thermal modeling
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top