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Full-Text Articles in Physics
Multiferroic Pb(Fe1/2Nb1/2)O3 Single Crystals: A Raman Scattering Study, A. F. García-Flores, Dmitri A. Tenne, W. J. Ren, X. X. Xi., S.-W. Cheong
Multiferroic Pb(Fe1/2Nb1/2)O3 Single Crystals: A Raman Scattering Study, A. F. García-Flores, Dmitri A. Tenne, W. J. Ren, X. X. Xi., S.-W. Cheong
Physics Faculty Publications and Presentations
No abstract provided.
Structural Development In Ge-Rich Ge-S Glasses, Y. Sakaguchi, Dmitri Tenne, Maria Mitkova
Structural Development In Ge-Rich Ge-S Glasses, Y. Sakaguchi, Dmitri Tenne, Maria Mitkova
Physics Faculty Publications and Presentations
The Raman spectra of Ge-S glasses in the Ge-rich region from Ge 33 to 46 % have been investigated in order to know the structural development of the network glasses. From the detailed curve fits, we have found that there is an unassigned peak at 410 cm-1 and it becomes larger with increasing Ge composition. To clarify the structural origin of the peak, we virtually constructed the atomic arrangement of the glassy state starting from the crystalline state through the liquid state and changed the composition gradually depleting the medium in sulfur. From the consideration of the structural modeling …
High-Resolution Near-Field Raman Microscopy Of Single-Walled Carbon Nanotubes, Achim Hartschuh, X. Sunney Xie, Lukas Novotny, Erik J. Sánchez
High-Resolution Near-Field Raman Microscopy Of Single-Walled Carbon Nanotubes, Achim Hartschuh, X. Sunney Xie, Lukas Novotny, Erik J. Sánchez
Physics Faculty Publications and Presentations
We present near-field Raman spectroscopy and imaging of single isolated single-walled carbon nanotubes with a spatial resolution of approximately 25 nm. The near-field origin of the image contrast is confirmed by the measured dependence of the Raman scattering signal on tip-sample distance and the unique polarization properties. The method is used to study local variations in the Raman spectrum along a single single-walled carbon nanotube.