Theory of electron spin resonance in Haldane-gap antiferromagnets
- 1 October 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 46 (14) , 9002-9008
- https://doi.org/10.1103/physrevb.46.9002
Abstract
Recent electron-spin-resonance experiments on the one-dimensional Heisenberg antiferromagnet, NENP, have observed 47-GHz transitions in magnetic fields of 1.4–5 T, depending on orientation. We argue that these should be understood as transitions between magnon states of a wave vector near π and different polarizations, whose energies are split by crystal-field anisotropy and magnetic fields. Neutron scattering measurements and/or models of the magnon spectrum thus determine the ESR resonance frequencies.Keywords
This publication has 15 references indexed in Scilit:
- Continuum dynamics of the 1-D Heisenberg antiferromagnet: Identification with the O(3) nonlinear sigma modelPublished by Elsevier ,2002
- Observation of fractional spinS=1/2 on open ends ofS=1 linear antiferromagnetic chains: Nonmagnetic dopingPhysical Review Letters, 1991
- Observation ofS=1/2 degrees of freedom in anS=1 linear-chain Heisenberg antiferromagnetPhysical Review Letters, 1990
- Model for Quasi-One-Dimensional Antiferromagnets: Application to CsNiPhysical Review Letters, 1990
- Elementary excitation in the Haldane statePhysical Review Letters, 1990
- Monte Carlo calculation of elementary excitation of spin chainsPhysical Review Letters, 1989
- Model for Quasi-One-Dimensional Antiferromagnets: Application to CsNiPhysical Review Letters, 1989
- Quantum energy gap in two quasi-one-dimensional S=1 Heisenberg antiferromagnets (invited)Journal of Applied Physics, 1988
- Presumption for a Quantum Energy Gap in the Quasi-One-Dimensional S = 1 Heisenberg Antiferromagnet Ni(C 2 H 8 N 2 ) 2 NO 2 (ClO 4 )Europhysics Letters, 1987
- Experimental evidence for the Haldane gap in a spin-1 nearly isotropic, antiferromagnetic chainPhysical Review Letters, 1986