Surface Piezoelectricity of (0001) Sapphire
نویسندگان
چکیده
منابع مشابه
Rotational Reconstruction of Sapphire (0001)
The structure of the ( √ 31 × √ 31)R ± 9 reconstructed phase on sapphire (0001) surface is investigated by means of a simulation based on the energy minimization. The interaction between Al adatoms is described with the semi-empirical manybody Sutton-Chen potential, corrected for the charge transfer between the metallic overlayer and the substrate. The interactions between the Al adatoms and sa...
متن کاملThe role of substrate surface termination in the deposition of (111) CdTe on (0001) sapphire
The small lattice mismatch and sixfold symmetry offered by the (0001) planes of sapphire make it an ideal substrate candidate for the deposition of (111) CdTe films. There, however, exists a wide disparity in film quality among various researchers with both single crystal and highly twinned, multidomain films being reported. We have developed a pulsed laser deposition process that enables us to...
متن کاملIon-assisted nucleation and growth of GaN on sapphire„0001..
We have performed a real-time x-ray scattering study of the nucleation of GaN on sapphire~0001! by gas-source molecular-beam epitaxy. GaN growth using thermal ammonia and Ga~C2H5!3 exhibited a rapidly decaying intensity at the 0001 reflection, characteristic of three-dimensional cluster growth. Growth with 30-eV NHx 1 ions and Ga~C2H5!3 exhibited layer-by-layer intensity oscillations with maxim...
متن کاملSurface electronic structures of La(0001) and Lu(0001)
D. Wegner,1 A. Bauer,1 Yu. M. Koroteev,2,3 G. Bihlmayer,4 E. V. Chulkov,2,5 P. M. Echenique,2,5 and G. Kaindl1 1Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin-Dahlem, Germany 2Donostia International Physics Center (DIPC), Paseo de Manuel Lardizabal 4, 20018 San Sebastián/Donostia, Basque Country, Spain 3Institute of Strength Physics and Material Science, ...
متن کاملSurface piezoelectricity: Size effects in nanostructures and the emergence of piezoelectricity in non-piezoelectric materials
In this work, using a combination of a theoretical framework and atomistic calculations, we highlight the concept of “surface piezoelectricity,” which can be used to interpret the piezoelectricity of nanostructures. Focusing on three specific material systems (ZnO, SrTiO3, and BaTiO3), we discuss the renormalization of apparent piezoelectric behavior at small scales. In a rather interesting int...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Applied
سال: 2019
ISSN: 2331-7019
DOI: 10.1103/physrevapplied.11.064065