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Updated: Jun 12, 2025
08:01
Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
Published on: November 21, 2019
7.1K
Light-induced magnetization from magnonic rectification.
Tom Kahana1, Daniel A Bustamante Lopez2, Dominik M Juraschek1
1School of Physics and Astronomy, Tel Aviv University, Tel Aviv 6997801, Israel.
Science Advances
|September 25, 2024
Summary
Researchers introduce magnonic rectification, a new method to convert spin precession into static magnetization using chiral phonons. This technique creates novel dynamical spin configurations not seen in equilibrium magnetism.
Area of Science:
- Condensed matter physics
- Magnetism
- Spintronics
Background:
- Rectification converts oscillating fields to quasi-static ones, seen in electronics (AC/DC converters), optics, and phononics.
- Existing rectification principles apply to electric fields and lattice vibrations, but not directly to magnetism.
Purpose of the Study:
- To introduce and demonstrate a novel rectification mechanism for magnetism, termed magnonic rectification.
- To explore the conversion of spin dynamics into quasi-static magnetic states.
Main Methods:
- Utilizing the force exerted by a coupled chiral phonon mode.
- Inducing spin precession and observing its conversion into quasi-static magnetization.
Main Results:
- Demonstrated magnonic rectification, converting spin precession into quasi-static magnetization.
- The induced magnetic state mimics a canted antiferromagnet.
- Opened possibilities for creating non-equilibrium dynamical spin configurations.
Conclusions:
- Magnonic rectification offers a new pathway to control and generate magnetic states.
- This mechanism enables access to exotic dynamical spin configurations beyond equilibrium properties.
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