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- 1. Phys. Rev. B 74, 214409 (2006) , “Hyperfine interaction of Er3+ ions in Y2SiO5: An electron paramagnetic resonance spectroscopy study”, O. Guillot-Noël, Ph. Goldner, Y. Le Du, E. Baldit, P. Monnier, and K. BencheikhElectron paramagnetic resonance (EPR) spectroscopy of rare earth ions in crystals is a powerful tool to analyze the hyperfine structure of the rare earth ground state. This can be useful for coherent spectroscopy and quantum information applications where the hyperfine structure of the electronic... (Read more)
- 2. Phys. Rev. B 74, 165202 (2006) , “Structural and electronic properties of Fe3+ and Fe2+ centers in GaN from optical and EPR experiments”, E. Malguth, A. Hoffmann, W. Gehlhoff, O. Gelhausen, M. R. Phillips, and X. XuThis work provides a consistent picture of the structural, optical, and electronic properties of Fe-doped GaN. A set of high-quality GaN crystals doped with Fe at concentrations ranging from 5×1017 cm3 to 2×1020 cm3 is... (Read more)
- 3. Phys. Rev. B 74, 100201(R) (2006) , “Direct spectroscopic observation of the atomic-scale mechanisms of clustering and homogenization of rare-earth dopant ions in vitreous silica”, Sabyasachi Sen, Rafail Rakhmatullin, Ruslan Gubaidullin, and Andreas PöpplStructural aspects of clustering of rare earth ions in oxide glasses have been studied for the last several years in relation to their applications in photonics. However, the mechanism of homogenization of the spatial distribution of rare earth ions by codoping, typically with Al or P, is still not... (Read more)
- 4. 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)
- 5. Appl. Phys. Lett. 83, 3407-3409 (2003) , “Electron spin resonance observation of trapped electron centers in atomic-layer-deposited hafnium oxide on Si”, A. Y. Kang, P. M. Lenahan, J. F. Conley Jr.We observed two paramagnetic defects in thin films of HfO2 on silicon with electron spin resonance. Both appear after photoinjecting electrons into the dielectric. Strong spectroscopic evidence links one spectrum to an O2-" align="middle"> defect. A second spectrum is... (Read more)
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Updated at 2010-07-20 16:50:39
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