Related Experiment Video
Updated: Jul 23, 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
Electron spin resonance study on the 4fhoneycomb quantum magnet YbCl3
Jörg Sichelschmidt1, Ellen Häußler2, Ekaterina Vinokurova3,4
1Max Planck Institute for Chemical Physics of Solids, Dresden, Germany.
Summary
Researchers studied Ytterbium (Yb3+) magnetic properties in YbCl3 using electron spin resonance. They observed anisotropic g-factors but isotropic magnetic exchange and spin relaxation, with excited crystal field levels influencing relaxation at higher temperatures.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Magnetism
Background:
- Layered honeycomb materials offer unique platforms for studying exotic magnetic phenomena.
- Ytterbium (Yb3+) ions are known for their complex magnetic behavior due to their electronic structure.
Purpose of the Study:
- To investigate the local magnetic properties of Yb3+ ions in the layered honeycomb material YbCl3.
- To understand the anisotropy of magnetic properties and the influence of crystal field levels on spin dynamics.
Main Methods:
- Electron spin resonance (ESR) spectroscopy was performed on single crystals of YbCl3.
- Magnetic properties were probed across different field orientations and temperatures.
Main Results:
- A clear anisotropy in the g-factor was observed for in-plane and out-of-plane field orientations (g∥=2.97(8) and g⊥=1.53(4)).
- The low-temperature exchange coupling and spin relaxation exhibited an isotropic character.
- The first excited crystal field level (21±2 meV) was found to dominate spin relaxation at elevated temperatures.
Conclusions:
- The magnetic properties of Yb3+ in YbCl3 are a complex interplay of anisotropic interactions and isotropic spin dynamics.
- Crystal field effects play a crucial role in mediating spin relaxation mechanisms in this material.
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