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Enhanced Phonon Scattering BelowTcCaused by Zn and Ni Substitution in La1.85Sr0.15CuO4

โœ Scribed by Hiroyuki Fujishiro; Manabu Ikebe; Yuzo Shibazaki

Book ID
110421097
Publisher
Springer US
Year
1999
Tongue
English
Weight
247 KB
Volume
117
Category
Article
ISSN
0022-2291

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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