Nuclear Relaxation in a Spin-\(\frac{1}{2}\) One-Dimensional Antiferromagnet

  • E. F. Rybaczewski
  • E. Ehrenfreund
  • A. F. Garito
  • A. J. Heeger
  • P. Pincus

Abstract

The spin dynamics in a spin—½, one-dimensional (1D) antiferromagnet (AF) at low temperatures is probed by nuclear spin—lattice relaxation measurements. The absence of a long-range order and a true phase transition even at 0°K results in large-amplitude spin fluctuations which dominate the relaxation even at very low temperatures and give rise to a finite relaxation rate at T→ 0°K.

Keywords

TCNQ Tetracyanoquinodimethan Methylphenazinium 

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Copyright information

© Plenum Press, New York 1974

Authors and Affiliations

  • E. F. Rybaczewski
    • 1
  • E. Ehrenfreund
    • 1
  • A. F. Garito
    • 1
  • A. J. Heeger
    • 1
  • P. Pincus
    • 2
  1. 1.Department of Physics and Laboratory for Research on the Structure of MatterUniversity of PennsylvaniaPhiladelphiaUSA
  2. 2.Department of PhysicsUniversity of California at Los AngelesLos AngelesUSA

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