Journal
CANADIAN JOURNAL OF PHYSICS
Volume 88, Issue 10, Pages 771-797Publisher
CANADIAN SCIENCE PUBLISHING
DOI: 10.1139/P10-081
Keywords
-
Categories
Funding
- Physics Department of McGill University
- McGill Centre for the Physics of Materials
- Natural Sciences and Engineering Research Council (NSERC)
- McGill University
Ask authors/readers for more resources
We present the classical antiferromagnet MnF2 as a perfect demonstration system for teaching a remarkably wide variety of neutron scattering concepts. The nature of antiferromagnetism and the magnetic Hamiltonian in this classical antiferromagnet are discussed. The transition temperature to the Neel state, the value of magnetic moment in the ordered state, the critical scattering close to the phase transition, spin waves associated with the ordering of the moments, as well as their dispersion and temperature dependences are determined experimentally. Parameters such as the Neel transition temperature and exchange coupling constants obtained from the experiments agree reasonably well with the previously published data. In addition, details of how an inelastic neutron scattering experiment is performed by means of triple-axis spectroscopy are provided.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available