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A New Spin on Material Properties: Local Magnetic Structure in Functional and Quantum Materials
Benjamin A Frandsen1, Henry E Fischer2
1Department of Physics and Astronomy, Brigham Young University, Provo, Utah 84602, United States of America.
Chemistry of Materials : a Publication of the American Chemical Society
|October 14, 2024
Summary
Local magnetic structure significantly impacts emerging materials. The magnetic pair distribution function (mPDF) technique effectively probes short-range magnetism using neutron scattering data.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Magnetism
Background:
- Emerging functional and quantum materials' properties depend on local atomic and magnetic structure.
- Traditional methods like Rietveld refinement focus on average structure, missing short-range details.
- Advanced probes are needed to capture local structural correlations on short length- and time-scales.
Purpose of the Study:
- To highlight the significance of local magnetic structure in emerging materials.
- To introduce the magnetic pair distribution function (mPDF) technique for studying short-range magnetism.
- To showcase mPDF applications in technologically relevant magnetic materials.
Main Methods:
- Utilizing neutron total-scattering data.
- Applying the magnetic pair distribution function (mPDF) analysis.
- Examining materials like MnTe, geometrically frustrated magnets, and iron-oxide nanoparticles.
Main Results:
- Demonstrated the importance of local magnetic structure in various emerging materials.
- Successfully applied mPDF to analyze short-range magnetism.
- Provided insights into the local magnetic behavior of selected magnetic materials.
Conclusions:
- The magnetic pair distribution function (mPDF) is a powerful tool for studying local magnetism.
- mPDF analysis is crucial for understanding emerging magnetic materials.
- The technique is well-positioned for continued impact in materials science research.
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