Electron spectroscopy and the electronic structure of KNbO3: First principle calculations
Taylor and Francis Inc.
99 - 105
MetadataShow full item record
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/28630
The electronic structures of KNbO3were calculated within the density functional theory, and their evolution was analyzed as the crystal-field symmetry changes from cubic to rhombohedral via tetragonal phase. We carried out electron-energy loss spectroscopy experiments by using synchrotron radiation and compared the results with the theoretical spectra calculated within Density Functional Theory. The dominant role of the NbO6 octahedra in the formation of the energy spectra of KNbO3compound was demonstrated. The anomalous behavior of plasmons in ferroelectrics was exhibited by the function representing the characteristic energy loss in the region of phase transition. © 2014 Copyright Taylor & Francis Group, LLC.
- Conference Paper 2294
Showing items related by title, author, creator and subject.
Comparison of the transport properties of high quality AlGaN/AlN/GaN and AlInN/AlN/GaN two-dimensional electron gas heterostructures Tülek, R.; Ilgaz, A.; Gökden, S.; Teke, A.; Öztürk, M.K.; Kasap, M.; Öz̧elik, S.; Arslan, E.; Özbay, E. (2009)The transport properties of high mobility AlGaN/AlN/GaN and high sheet electron density AlInN/AlN/GaN two-dimensional electron gas (2DEG) heterostructures were studied. The samples were grown by metal-organic chemical vapor ...
Photogeneration of hot plasmonic electrons with metal nanocrystals: Quantum description and potential applications Govorov A.O.; Zhang H.; Demir H.V.; Gun'Ko Y.K. (Elsevier B.V., 2014)The paper reviews physical concepts related to the collective dynamics of plasmon excitations in metal nanocrystals with a focus on the photogeneration of energetic carriers. Using quantum linear response theory, we analyze ...
Balkan, N.; O'Brien-Davies, A.; Thoms, A.B.; Potter, R.J.; Poolton, N.; Adams, M.J.; Masum J.; Bek, A.; Serpenguzel, A.; Aydinli, A.; Roberts J.S. (1998)The hot Electron Light Emission and Lasing in Semiconductor Heterostructures devices (HELLISH-1) is novel surface emitter consisting of a GaAs quantum well, within the depletion region, on the n side of Ga 1-xAlxAs p- n ...