Abstract
The ground state of a quantum vacancy in a 2D antiferromagnet is found to involve a long-range dipolar distortion of the staggered magnetization. An effective Hamiltonian of vacancies interacting with long-wavelength spin waves is derived. The implications for the anitferromagnetic long-range order are discussed.
- Received 5 February 1988
DOI:https://doi.org/10.1103/PhysRevLett.61.467
©1988 American Physical Society