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| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
 | Lupton, John Mark | Ultrafast intramolecular energy transfer in single conjugated polymer chains probed by polarized single chromophore spectroscopy | Single molecule spectroscopy of rigid-rod ladder-type conjugated polymers reveals individual chromophore units on a polymer chain, exhibiting fluorescence linewidths of less than 1 nm. Whereas the fluorescence from a single chromophore is fully linearly polarized at low temperatures, a number of exc... | Single molecule spectroscopy; Intramolecular energy transfer; Chromophore spectroscopy; Chromophores; Rigid-rod; Ladder-type | 2004 |
| 2 |
 | Tiwari, Ashutosh | Ferromagnetism in Cu-doped ZnO films: role of charge carriers | We report the observation of room temperature ferromagnetism in Cu-doped (5%) ZnO films grown on c-plane sapphire substrates. Films were prepared by pulsed laser deposition technique and were thoroughly characterized using several state-of-the-art characterization techniques. Hall measurements sho... | Charge carriers | 2008 |
| 3 |
 | Tiwari, Ashutosh | Epitaxial growth and properties of Zn1-xVxO diluted magnetic semiconductor thin films | Here we report systematic studies on the epitaxial growth and properties of Zn1−xVxO[x=0.001-0.2] thin films deposited onto sapphire c-plane single crystals. The thin films were deposited using pulsed laser deposition technique and were found to be epitaxial in nature. X-ray diffraction and high ... | ZnO; Vanadium | 2005 |
| 4 |
 | Rogachev, Andrey | Superconducting properties of polycrystalline Nb nanowires templated by carbon nanotubes | Continuous Nb wires, 7-15 nm in diameter, have been fabricated by sputter-coating single fluorinated carbon nanotubes. Transmission electron microscopy revealed that the wires are polycrystalline, having grain sizes of about 5 nm. The critical current of wires thicker than ~12 nm is very high (107 A... | Polycrystalline Nb; Carbon nanotubes; Langer-Ambegaokar-McCumber-Halperin; Phase slips | 2003 |
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