Pseudogap and incommensurate magnetic fluctuations in YBa2Cu3O6.6

Author

• Pengcheng Dai
• Herbert A. Mook
• Fatih Dogan, Missouri University of Science and TechnologyFollow

Abstract

Unpolarized inelastic neutron scattering is used to study the temperature and wave vector dependence of the dynamical magnetic susceptibility X"(q,w) of a well-characterized single-crystal YBa₂Cu₃O_6.6 (Tc = 62.7 K). We find that a pseudogap opens in the spin-fluctuation spectrum at temperatures well above T_c. We speculate that the appearance of the low-frequency incommensurate fluctuations is associated with the opening of the pseudogap. To within the error of the measurements, a gap in the spin-fluctuation spectrum is found in the superconducting state.

Recommended Citation

P. Dai et al., "Pseudogap and incommensurate magnetic fluctuations in YBa2Cu3O6.6," Physica B: Condensed Matter, vol. 241-243, pp. 524 - 527, Elsevier, Dec 1997.

The definitive version is available at https://doi.org/10.1016/S0921-4526(97)00633-9

Department(s)

Materials Science and Engineering

Publication Status

Full Text Access

Keywords and Phrases

High-Tc Superconductivity; Magnetic excitations

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2026 Elsiver, All rights reserved

Publication Date

1997-12-01