
« Previous
1
Next »
(11 hits, 1/1)
Showing
10, 25, 50, 100, 500, 1000, all papers per page.
Sort by:
last publication date,
older publication date,
last update date.
- 1. Phys. Rev. B 75, 014111 (2007) , “Effects of vacancies on the properties of disordered ferroelectrics: A first-principles study”, L. Bellaiche, Jorge Íñiguez, Eric Cockayne, and B. P. BurtonA first-principles-based model is developed to investigate the influence of lead vacancies on the properties of the disordered Pb(Sc1/2Nb1/2)O3 (PSN) ferroelectric. Lead vacancies generate large, inhomogeneous, electric fields that reduce barriers between energy... (Read more)
- 2. Phys. Rev. Lett. 98, 115503 (2007) , “Oxygen Vacancy Clustering and Electron Localization in Oxygen-Deficient SrTiO3: LDA+U Study”, Do Duc Cuong, Bora Lee, Kyeong Mi Choi, Hyo-Shin Ahn, Seungwu Han, and Jaichan LeeWe find, using a local density approximation +Hubbard U method, that oxygen vacancies tend to cluster in a linear way in SrTiO3, a prototypical perovskite oxide, accompanied by strong electron localization at the 3d state of the nearby Ti transition metal ion. The vacancy... (Read more)
- 3. Appl. Phys. Lett. 89, 172906 (2006) , “Oxygen vacancy motion in Er-doped barium strontium titanate thin films”, Junling Wang and Susan Trolier-McKinstryAmphoteric dopants are widely used in BaTiO3-based dielectrics to improve capacitor reliability. In this work, an analogous approach was explored for barium strontium titanate thin films. Ba0.7Sr0.3TiO3 thin films were prepared by chemical solution... (Read more)
- 4. Appl. Phys. Lett. 89, 071916 (2006) , “Migration and redistribution of oxygen vacancy in barium titanate ceramics”, L. Chen, X. M. Xiong, H. Meng, P. Lv, and J. X. ZhangDegradation of barium titanate based multilayer capacitor mainly results from migration and redistribution of oxygen vacancy. For barium titanate ceramics, the authors observe an internal friction relaxation peak around 70 °C due to oxygen vacancy, and its relaxation strength differs greatly... (Read more)
- 5. J. Appl. Phys. 100, 044109 (2006) , “Variable energy positron beam analysis of vacancy defects in laser ablated SrTiO3 thin films on SrTiO3”, S. McGuire, D. J. Keeble, R. E. Mason, P. G. Coleman, Y. Koutsonas, and T. J. JacksonVacancies are known often to be the dominant type of point defects in perovskite oxides, but their presence can rarely be directly determined. Positron annihilation methods have unique sensitivity to vacancy-related defects and the variable energy positron beam (VEPB) techniques allow near-surface... (Read more)
- 6. J. Appl. Phys. 100, 044105 (2006) , “Structural defects in multiferroic BiMnO3 studied by transmission electron microscopy and electron energy-loss spectroscopy”, H. Yang, Z. H. Chi, L. D. Yao, W. Zhang, F. Y. Li, C. Q. Jin, and R. C. YuThe multiferroic material BiMnO3 synthesized under high pressure has been systematically studied by transmission electron microscopy and electron energy-loss spectroscopy, and some important structural defects are revealed in this multiferroic material. The frequently observed defects are... (Read more)
- 7. J. Appl. Phys. 99, 124105 (2006) , “Hydrogen-implant-induced polarization loss and recovery in IrO2/Pb(Zr,Ti)O3/Pt capacitors”, J. S. Cross, K. Kurihara, I. Sakaguchi, and H. HanedaHydrogen was implanted into IrO2 (200 nm)/Pb(Zr,Ti)O3/Pt thin film capacitors at 26 keV with a flux of 2×1015 H+ ions/cm2 and also implanted at 20 keV with a flux of 1×1015 H+ ions/cm2 into... (Read more)
- 8. Phys. Rev. B 73, 184105 (2006) , “Iron-oxygen vacancy defect association in polycrystalline iron-modified PbZrO3 antiferroelectrics: Multifrequency electron paramagnetic resonance and Newman superposition model analysis”, Hrvoje Metri, Rüdiger-A. Eichel, Klaus-Peter Dinse, Andrew Ozarowski, Johan van Tol, Louis Claude Brunel, Hans Kungl, Michael J. Hoffmann, Kristin A. Schönau, Michael Knapp, and Hartmut FuessBy utilizing multifrequency electron paramagnetic resonance (EPR) spectroscopy, the iron functional center in Fe3+-modified polycrystalline lead zirconate (PbZrO3) was studied. The single phase polycrystalline sample remained orthorhombic and antiferroelectric down to 20 K as... (Read more)
- 9. Appl. Phys. Lett. 87, 022903 (2005) , “Electron spin resonance investigation of oxygen-vacancy-related defects in BaTiO3 thin films”, V. V. Laguta, A. M. Slipenyuk, I. P. Bykov, M. D. Glinchuk, M. Maglione, D. Michau, J. Rosa, L. JastrabikThe Ti3+ center, based on a regular Ti site perturbed by an oxygen vacancy (VO), is identified by electron spin resonance (ESR) in textured BaTiO3 films. The center shows tetragonal symmetry along cubic 100 axes with g-factors: g=1.997,... (Read more)
- 10. J. Appl. Phys. 80, 5234 (1996) , “Electron paramagnetic resonance of Nb-doped BaTiO3 ceramics with positive temperature coefficient of resistivity”, S. Jida, T. MikiParamagnetic centers in Nb-doped BaTiO3 ceramics are measured at 77500 K by electron paramagnetic resonance (EPR) for investigating the role of the centers on the well-known positive temperature coefficient of resistivity (PTCR) effect (PTCR at the Curie temperature). EPR detects... (Read more)
- 11. J. Appl. Phys. 79, 9250 (1996) , “Defect-dipole alignment and tetragonal strain in ferroelectrics”, W. L. Warren, G. E. Pike, K. Vanheusden, D. Dimos, B. A. Tuttle, J. RobertsonWe show the alignment of defect dipoles along the direction of the spontaneous polarization in polycrystalline Pb(Zr,Ti)O3 and BaTiO3 ferroelectric ceramics using electron paramagnetic resonance (EPR). The alignment is demonstrated via orientation dependent paramagnetic centers... (Read more)
« Previous
1
Next »
(11 hits, 1/1)
Showing
10, 25, 50, 100, 500, 1000, all papers per page.
Sort by:
last publication date,
older publication date,
last update date.
All papers (3399)
Updated at 2010-07-20 16:50:39
Updated at 2010-07-20 16:50:39
(view as: tree
,
cloud
)
1329 | untagged |
Materials
(111 tags)
Others(101 tags)
Technique
(46 tags)
Details
(591 tags)
Bond(35 tags)
Defect(interstitial)(18 tags)
Defect(vacancy)(15 tags)
Defect-type(19 tags)
Element(65 tags)
Energy(8 tags)
Isotope(56 tags)
Label(303 tags)
Sample(17 tags)
Spin(8 tags)
Symmetry(15 tags)