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The energy gap of the high Tc superconductor La1.85Sr0.15CuO4

✍ Scribed by D.A. Bonn; J.E. Greedan; C.V. Stager; T. Timusk

Book ID
107855316
Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
223 KB
Volume
62
Category
Article
ISSN
0038-1098

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πŸ“œ SIMILAR VOLUMES

Structural instability of high-Tc superc
Structural instability of high-Tc superconductor La1.85Sr0.15CuO4
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Investigation on a high-To superconductor, Lal.ssSro.15CuO4, was performed in the wide range of Q E space by means of neutron scattering and synchrotron radiation. The structure as well as the phonon dynamics showed a clear evolution at To. We found a spontaneous strain and phonon softening, which p

High-energy phonon dispersion in La1.85S
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✍ A.H. Moudden; P.M. Gehring; G. Shirane; M. Matsuda; L. Vasiliu-Doloc; B. Hennion πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 189 KB

We have measured two phonon-dispersion curves above 50meV in a superconducting (T~ = 33 K) single crystal of Lal.85Sro.tsCuO4. In the normal phase (T =45 K), we show that the A, mode compatible with the Raman A, g (425 cm -1) mode is weakly dispersive, falling from 53.7 meV at the zone center to abo