Spin-Reorientation-Driven Linear Magnetoelectric Effect in Topological Antiferromagnet Cu_{3}TeO_{6}

Area of Science:

• Condensed Matter Physics
• Materials Science
• Spintronics

Background:

• The demand for energy-efficient electronics drives research into novel magnetic materials.
• Antiferromagnets, magnetoelectrics, and topological spin excitation systems are key areas of interest.
• Cu_{3}TeO_{6} uniquely combines properties from all three classes.

Purpose of the Study:

• To investigate the magnetoelectric effect in Cu_{3}TeO_{6}.
• To understand the role of magnetic-field-induced spin reorientation.
• To explore the material's potential for spintronics applications.

Main Methods:

• Static electric polarization measurements.
• Magnetic torque measurements.
• Phenomenological simulations.
• Symmetry analysis (including PT symmetry).

Main Results:

• Magnetic-field-induced spin reorientation is crucial for the linear magnetoelectric effect in Cu_{3}TeO_{6}.
• Magnetic fields induce a transition from nonpolar to polar magnetic structures.
• Near-nonpolar structures persist due to weak symmetry breaking.
• PT symmetry is preserved for Dirac points.

Conclusions:

• Cu_{3}TeO_{6} is a promising material for studying coupled spintronic phenomena.
• Its complex magnetic behavior offers a unique platform for fundamental research.
• The material holds potential for future energy-efficient electronic devices.