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Updated: Aug 26, 2025
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Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
Published on: June 28, 2018
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Possible realization of three-dimensional quantum spin liquid behavior in HoVO4
Dheeraj Ranaut1, Shivprasad S Shastri2, Sudhir K Pandey2
1School of Basic Sciences, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India.
Summary
HoVO4 exhibits short-range magnetic correlations and lacks long-range ordering, suggesting potential as a 3D quantum spin liquid (QSL) material. DFT calculations reveal magnetic frustration due to nearest neighbor interactions.
Area of Science:
- Condensed Matter Physics
- Magnetism
- Quantum Materials
Background:
- Geometrically frustrated magnetic systems with unusual crystal field ground states are key to understanding disordered systems.
- Holmium vanadate (HoVO4) features a distorted HoO8 polyhedron, creating multiple magnetic interaction pathways.
- Investigating such systems can reveal novel physical phenomena.
Purpose of the Study:
- To investigate the structural and magnetic properties of HoVO4.
- To determine if HoVO4 exhibits characteristics of a quantum spin liquid (QSL).
- To understand the role of magnetic frustration in HoVO4.
Main Methods:
- Experimental measurements including structural analysis, DC and AC magnetic susceptibility, and heat capacity.
- Density Functional Theory (DFT) calculations.
- Analysis of temperature-dependent magnetic and thermal properties.
Main Results:
- Broad maxima in DC susceptibility below 10 K indicate short-range correlations.
- AC susceptibility measurements rule out spin freezing.
- Heat capacity data show no long-range ordering, with a broad maximum around 14 K and residual heat capacity following a power law (α ≈ 2), characteristic of 3D quantum spin liquid systems.
- DFT calculations identify dominant second and third nearest neighbor interactions, leading to magnetic frustration.
Conclusions:
- HoVO4 displays characteristics consistent with a three-dimensional quantum spin liquid (3D QSL) state.
- The observed magnetic frustration is attributed to specific nearest neighbor interactions.
- HoVO4 is a promising candidate material for realizing 3D QSL physics.
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