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- 1. 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)
- 2. J. Appl. Phys. 99, 073511 (2006) , “Effects of temperature and flux on oxygen bubble formation in Li borosilicate glass under electron beam irradiation”, Nadège Ollier, Giancarlo Rizza, Bruno Boizot, and Guillaume PetiteOxygen bubble formation and evolution under a 300 keV electron beam are analyzed in a Li borosilicate glass under different irradiation conditions: temperature, flux, and dose. Oxygen bubbles are observed to form in a delimited flux and temperature region with a threshold requirement. This region... (Read more)
- 3. Phys. Rev. Lett. 97, 116101 (2006) , “Oxygen Migration, Agglomeration, and Trapping: Key Factors for the Morphology of the Si-SiO2 Interface”, L. Tsetseris and S. T. PantelidesThe measured activation energies for oxide growth rates at the initial and late stages of oxidation of Si are 2 and 1.2 eV, respectively. These values imply that oxidation can proceed at temperatures much smaller than the 800 °C normally used to obtain devices with exceptionally smooth... (Read more)
- 4. Appl. Phys. Lett. 87, 221903 (2005) , “Oxygen segregation to dislocations in GaN”, M. E. Hawkridge and D. ChernsThe structure and composition of threading dislocations in GaN grown by hydride vapor phase epitaxy have been examined by electron microscopy. Transmission electron microscopy showed that the core structure of screw dislocations varied widely, alternating irregularly between open core... (Read more)
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Updated at 2010-07-20 16:50:39
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