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Full-Text Articles in Physics

Band Dispersion In C60(111): An Angle-Resolved Photoemission Study, P. J. Benning, C. G. Olson, David W. Lynch, J. H. Weaver Oct 1994

Band Dispersion In C60(111): An Angle-Resolved Photoemission Study, P. J. Benning, C. G. Olson, David W. Lynch, J. H. Weaver

Physics and Astronomy Publications

Angle-resolved photoemission studies of single-crystal C60(111) films grown on GeS(001) reveal changes in valence feature line shape with emission angle and photon energy that are indicative of band dispersion. For an excitation energy (hν) of 10 eV, normal emission spectra show four sharp structures within the ∼1.1-eV-wide valence feature derived from the second highest molecular orbital (HOMO-1) of C60. For hν=8.1 eV, the 1-eV-wide HOMO-derived feature exhibits changes with emission angle mainly due to dispersion of 0.6 eV in the unoccupied bands. The distribution of electronic states underlying HOMO and HOMO-1 indicates ...


Method For Producing Strain Tolerant Multifilamentary Oxide Superconducting Wire, Douglas K. Finnemore, Theodore A. Miller, Jerome E. Ostenson, Louis A. Schwartzkopf, Steven C. Sanders Jul 1994

Method For Producing Strain Tolerant Multifilamentary Oxide Superconducting Wire, Douglas K. Finnemore, Theodore A. Miller, Jerome E. Ostenson, Louis A. Schwartzkopf, Steven C. Sanders

Iowa State University Patents

A strain tolerant multifilamentary wire capable of carrying superconducting currents is provided comprising a plurality of discontinuous filaments formed from a high temperature superconducting material. The discontinuous filaments have a length at least several orders of magnitude greater than the filament diameter and are sufficiently strong while in an amorphous state to withstand compaction. A normal metal is interposed between and binds the discontinuous filaments to form a normal metal matrix capable of withstanding heat treatment for converting the filaments to a superconducting state. The geometry of the filaments within the normal metal matrix provides substantial filament-to-filament overlap, and the ...