Abstract
The excitation spectrum of the spiral state of a doped quantum antiferromagnetic is discussed. It is shown that the low-lying spin excitations are strongly mixed with the transverse fluctuations of the dipolar polarization field associated with the vacancies. It is argued that for a certain range of phenomenological parameters these transverse fluctuations could lead to the destruction of the long-range order at T=0.
- Received 31 January 1992
DOI:https://doi.org/10.1103/PhysRevB.46.8305
©1992 American Physical Society
