Ahmet Erbil
Professor

Ph.D., MIT, 1983
Phone: (404)894-6817/894-8189
Room: Howey-N116/W208

EMail: ahmet.erbil [at] physics.gatech.edu

 

■ Research ■

Professor Erbil's research focuses on the creation and understanding of advanced material systems which might lead to the discovery of novel physical phenomena or to applications in electronics, optics, or sensors. The program components include: (1) the growth and processing of materials; (2) the study of bulk, thin film, interface and surface properties; and (3) theoretical modeling. Among the materials of interest are ferroelectrics, silicon, II-VI semiconductor compounds, transition metal oxides, high-temperature superconductors, and diamonds.

One area of recent interest is the study of oxide ferroelectric thin films with the peroskite structure. Some of the issues addressed are pseudomorphic growth, generation of misfit dislocations, thickness dependence of ferroelectric and structural phase transitions (in the thickness range of 50-1000 to 10,000 have been deposited. In a related study, epitaxial single crystal platinum thin films have been grown on KTaO3. The quality of the epitaxy was extre- mely high as demonstrated by RBS and ion channeling. This opens up a whole new area because now metal/insulator superlattices and heterostructures can be grown. A buried thin metal layer surrounded by highly polarizable oxide layers may exhibit novel behaviors, including exitonic superconductivity. Also these artificially structured material systems may have applications in optoelectronics.

■ Publications ■

1. “An Analytical Model for Support Loss in Micromachined Beam Resonators with In-plane Flexural Vibrations”, Z. Hao, A. Erbil, and F. Ayazi, Sensors and Actuators A, Vol. 109, 156-164, (2003).
2. "High-Q single crystal silicon HARPSS capacitive beam resonators with self-aligned sub-100nm transduction gaps", S. Pourkamali, A. Hashimura, R. Abdolvand, G. K. Ho, A. Erbil, and F. Ayazi, Journal of Microelectromechanical Systems, 487-496, (2003).
3. “PWB Compatible High Value Integral Capacitors by MOCVD”, O. Misman, S. Bhattacharya, A. Erbil and R. Tummala, Journal of Materials Science 11, 657 (2000).
4. "Computational Simulation of MOCVD Growth of Titanium Oxide", Z. Nami, O. Misman, A. Erbil and G. May, J. Crystal Growth, vol. 171, pp. 154-165, February, 1997.
5. "Optical Properties of the Epitaxial Pb1-xLaxTiO3 Thin Films Grown by Metalorganic Chemical Vapor Deposition", Y. Kim and A. Erbil, Appl. Phys. Lett., 70, 143 (1997).
6. "Dynamical Properties of Epitaxial Ferroelectric Superlattices", Y. Kim, R. A. Gerhardt and A. Erbil, Phys. Rev. B 55, 8766 (1997-II).
7. "Semi-Empirical Neural Network Modeling of Metal-Organic Chemical Vapor Deposition", Z. Nami, O. Misman, A. Erbil and G. S. May, IEEE Trans. Semiconduct. Manufact., vol.10, pp. 288-294, May 1997.
8. "Giant Permittivity in Epitaxial Ferroelectric Heterostructures", A. Erbil, Y. Kim, and R. A. Gerhardt, Phys. Rev. Lett. 77, 1628 (1996).
9. "Domain Formation and Strain Relaxation in Epitaxial Ferroelectric Heterostructures", B. S. Kwak, A. Erbil, B. J. Wilkens, J. D. Budai, M. F. Chisholm, and L. A. Boatner, Phys. Rev. B 49, 14865 (1994).
10. "Epitaxial Lead Zirconate-Titanate Thin Films on Sapphire", W. Braun, B. S. Kwak, A. Erbil, J. D. Budai and B. J. Wilkens, Appl. Phys. Lett. 63, 467 (1993).