Incommensurate Magnetic Fluctuations in YBa₂Cu₃O₆.₆

Author

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

Abstract

We use inelastic neutron scattering to demonstrate that the low-frequency magnetic fluctuations in YBa₂Cu₃O_6.6 (T_c = 62.7 K) change from commensurate to incommensurate on cooling with the incommensurability first appearing at temperatures above T_c. For the energies studied, the susceptibility at incommensurate positions increases on cooling below T_c, accompanied by a suppression of the spin fluctuations at the commensurate points. These results suggest that incommensurate spin fluctuations may be a common feature for all cuprate superconductors.

Recommended Citation

P. Dai et al., "Incommensurate Magnetic Fluctuations in YBa₂Cu₃O₆.₆," Physical Review Letters, vol. 80, no. 8, pp. 1738 - 1741, American Physical Society (APS), Feb 1998.

The definitive version is available at https://doi.org/10.1103/PhysRevLett.80.1738

Department(s)

Materials Science and Engineering

International Standard Serial Number (ISSN)

0031-9007

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 1998 American Physical Society (APS), All rights reserved.

Publication Date

01 Feb 1998