Anomalous Spin Dynamics in Doped Quantum Antiferromagnets
- 24 April 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 74 (17) , 3411-3414
- https://doi.org/10.1103/physrevlett.74.3411
Abstract
Finite-temperature spin dynamics in the planar model are studied using a method based on the Lanczos diagonalization of small systems. The dynamical spin structure factor at moderate dopings shows the coexistence of free-fermion-like and spin-fluctuation time scales. At , low-frequency and static susceptibilities show a pronounced dependence, supporting a scenario related to the marginal Fermi liquid one, for the explanation of neutron-scattering and NMR relaxation experiments in cuprates. Calculated NMR relaxation rates reasonably reproduce experimental ones.
Keywords
All Related Versions
This publication has 17 references indexed in Scilit:
- Correlated electrons in high-temperature superconductorsReviews of Modern Physics, 1994
- Toward a unified magnetic phase diagram of the cuprate superconductorsPhysical Review Letters, 1993
- Spin-spin correlation in the quantum critical regime ofPhysical Review Letters, 1993
- Uniform magnetic susceptibility of thet-Jmodel on the 4×4 latticePhysical Review B, 1993
- Temperature dependence of the dynamic susceptibility χ’’(ω) in superconducting (=53 K)Physical Review B, 1993
- Antiferromagnetic correlations and nuclear magnetic relaxation in high-Tcsuperconductors: A critical reexaminationPhysical Review B, 1992
- Temperature scaling of the integrated dynamical susceptibility in YBa2Cu3O6.5(T c =50 K)Zeitschrift für Physik B Condensed Matter, 1992
- Cu and O NMR studies of the magnetic properties of (=62 K)Physical Review B, 1991
- Antiferromagnetic Spin Fluctuations and Superconductivity in Two-Dimensional Metals -A Possible Model for HighTcOxidesJournal of the Physics Society Japan, 1990
- Phenomenology of the normal state of Cu-O high-temperature superconductorsPhysical Review Letters, 1989