High Resolution Inelastic Neutron Scattering Study of Phonon Self-Energy Effects in YBCO

Author

Dmitry V. Reznik
Bernhard Keimer
Fatih Dogan, Missouri University of Science and TechnologyFollow
Ilhan A. Aksay

Abstract

We report preliminary results of the high resolution inelastic neutron scattering measurements of the 42.5 meV optical phonon branch in YBCO, whose behavior at momentum transfer q=0 has been extensively studied by Raman scattering. The experiment was done on a large (75g) single crystal of YBa₂Cu₃O_7-x (T_c~90K) with the resolution of 2 meV (full width at half maximum). In cooling from 100K to 50K we observe a small softening of the phonon energy at q= 0.25, 0.25, 0, but no significant linewidth change.

Recommended Citation

D. V. Reznik et al., "High Resolution Inelastic Neutron Scattering Study of Phonon Self-Energy Effects in YBCO," Physica C: Superconductivity and its Applications, vol. 235-240, no. PART 3, pp. 1733 - 1734, Elsevier, Dec 1994.

The definitive version is available at https://doi.org/10.1016/0921-4534(94)92088-5

Department(s)

Materials Science and Engineering

International Standard Serial Number (ISSN)

0921-4534

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1994 Elsevier, All rights reserved.

Publication Date

01 Dec 1994