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14 papers · 1 filter
Fractional Exclusion Statistics and Two Dimensional Electron Systems
R. K. Bhaduri, M. V. N. Murthy, M. K. Srivastava
Using the Thomas-Fermi approximation, we show that an interacting two dimensional electron gas may be described in terms of fractional exclusion statistics at zero and finite tempe…
Vortex State in a d-Wave Superconductor
M. Franz, C. Kallin, P. I. Soininen +2
We discuss the physics of the vortex state in a -wave superconductor, using the phenomenological Ginzburg-Landau theory, where many novel phenomena arise from the small admixtur…
Optical phonons along the c axis of YBa_2Cu_3O_{6+x}, for x=0.5 -> 0.95
C. C. Homes, T. Timusk, D. A. Bonn +2
The c-axis polarized phonon spectra of single crystals of YBCO_{6+x} have been measured for the doping range x=0.5 -> 0.95, between 10 K and 300 K. The low background electronic co…
Hubble Space Telescope Observations of White Dwarfs in the Globular Cluster M4
Harvey B. Richer, Gregory G. Fahlman, Rodrigo A. Ibata +9
With the Wide Field Planetary Camera 2 (WFPC2) on the Hubble Space Telescope, we have discovered in M4 (NGC 6121, C 1620-264) the first extensive sequence of cooling white dwarfs s…
Effect of Proximity Coupling of Chains and Planes on the Penetration Depth Anisotropy in Y_1Ba_2Cu_3O_7
W. A. Atkinson, J. P. Carbotte
We calculate the penetration depth in the , and directions for a simple model of YBaCuO. In this model there are two layers---representing a CuO plan…
Are Galaxies Optically Thin to Their Own Lyman Continuum Radiation? II. NGC 6822
K. Patel, C. D. Wilson
Halpha and UBV photometry of NGC 6822 are used to study the distribution of OB stars and HII regions in the galaxy and to determine whether individual regions of the galaxy are in…