Related Experiment Video
Updated: Apr 16, 2026

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
Published on: March 24, 2019
Phase diagram of a three-dimensional antiferromagnet with random magnetic anisotropy
Felio A Perez1, Pavel Borisov1, Trent A Johnson1
1Department of Physics and Astronomy, West Virginia University, Morgantown, West Virginia 26506-6315, USA.
Abstract:
Three-dimensional antiferromagnets with random magnetic anisotropy (RMA) that have been experimentally studied to date have competing two-dimensional and three-dimensional exchange interactions which can obscure the authentic effects of RMA. The magnetic phase diagram of Fe_{x}Ni_{1-x}F_{2} epitaxial thin films with true random single-ion anisotropy was deduced from magnetometry and neutron scattering measurements and analyzed using mean-field theory. Regions with uniaxial, oblique, and easy-plane anisotropies were identified. A RMA-induced glass region was discovered where a Griffiths-like breakdown of long-range spin order occurs.
Related Concept Videos
Ferromagnetism
Phase Diagrams of Ternary Systems
Paramagnetism
Valence Bond Theory
Magnetic Fields
A magnetic field is defined by the force that a charged particle experiences...
Colors and Magnetism
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...

