Related Experiment Video
Updated: Jul 25, 2025
09:06
Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
Published on: March 24, 2019
8.2K
Structure and magnetism of the triangular lattice material YbBO3
G Sala1, Matthew B Stone2, Seung-Hwan Do3
1Spallation Neutron Source, Second Target Station, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States of America.
Summary
Ytterbium borate (YbBO3) exhibits complex magnetic ordering on a triangular lattice with two distinct Yb3+ sites. Neutron diffraction reveals magnetic Bragg peaks, indicating potential long-range order below 0.4 K.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Magnetism
Background:
- YbBO3 belongs to the orthoborate family, characterized by a triangular arrangement of Yb3+ ions.
- Understanding the magnetic properties of materials with triangular lattices is crucial for exploring novel quantum phenomena.
Purpose of the Study:
- To investigate the physical properties and magnetic ordering of YbBO3.
- To determine the crystallographic structure and magnetic behavior of YbBO3 at low temperatures.
Main Methods:
- Neutron diffraction
- Inelastic neutron scattering
- Specific heat measurements
- AC susceptibility measurements
Main Results:
- YbBO3 crystallizes in the monoclinic space group C2/c with two distinct Yb3+ sites on a distorted triangular lattice.
- Magnetic ordering is suggested by heat capacity and AC susceptibility measurements around 0.4 K.
- Neutron diffraction at 0.044 K reveals magnetic Bragg peaks indexed by (0 0 1), with ordered moments between 0.4-0.9 μB on both Yb sites.
- Diffuse scattering indicates incomplete long-range magnetic order, alongside shorter-ranged spin correlations.
Conclusions:
- YbBO3 is a two-site triangular lattice material.
- The material displays signatures of both long-range magnetic order and shorter-ranged spin correlations.
- The complex magnetic behavior arises from the two distinct Yb3+ sites and the triangular lattice geometry.
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