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
โฆ LIBER โฆ
Above Tc phonon renormalization in La1.85Sr0.15CuO4
โ Scribed by Yoad Yagil; Ekhard K.H. Salje
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 338 KB
- Volume
- 229
- Category
- Article
- ISSN
- 0921-4534
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