Abstract
Inelastic neutron-scattering profiles of spin waves in the dilute quasi-one-dimensional Ising-like antiferromagnet CsCa0.83Mg0.17Br3 have been investigated. Calculations of Sxx(Q,w), based on an effective spin Hamiltonian, accurately describe the experimental spin-wave spectrum of the 2J mode. The Q dependence of the energy of this spin-wave mode follows the analytical prediction wxx(Q)=(2J)(1-5ε2 cos2 Qa+2ε2)1/2, calculated by Ishimura and Shiba using perturbation theory.
Original language | English |
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Article number | 212408 |
Pages (from-to) | 2124081-2124084 |
Number of pages | 4 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 65 |
Issue number | 21 |
DOIs | |
State | Published - Jun 1 2002 |