Spin accumulation electrically injects a vector magnon spin current into altermagnets with a transverse component enhanced by two orders of magnitude due to broken PT symmetry, providing a transport signature to distinguish them from conventional antiferromagnets.
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CrSb is a high-temperature metallic altermagnet with coherent magnons of group velocities 61 and 58 km/s that exhibit chiral momentum-space splitting, described by a minimal Heisenberg model with alternating exchange interactions.
Checkerboard-lattice Hubbard electrons are unstable to weak-coupling altermagnetism whose magnons display alternating chirality splitting.
PT-symmetric antiferromagnets with hidden dipoles allow electric fields to induce up to 20 meV chiral magnon splitting in Cr2CCl2 and Cr2CBr2, enabling reversible switching of magnon spin currents.
citing papers explorer
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Vector Magnonics: Electrical Injection and Control of Spin Flow in Altermagnets
Spin accumulation electrically injects a vector magnon spin current into altermagnets with a transverse component enhanced by two orders of magnitude due to broken PT symmetry, providing a transport signature to distinguish them from conventional antiferromagnets.
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Coherent high-velocity chiral magnons in the metallic altermagnet CrSb
CrSb is a high-temperature metallic altermagnet with coherent magnons of group velocities 61 and 58 km/s that exhibit chiral momentum-space splitting, described by a minimal Heisenberg model with alternating exchange interactions.
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Weak-coupling altermagnetism and chiral magnetic excitations in a checkerboard lattice
Checkerboard-lattice Hubbard electrons are unstable to weak-coupling altermagnetism whose magnons display alternating chirality splitting.
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Electric-Switchable Chiral Magnons in PT-Symmetric Antiferromagnets
PT-symmetric antiferromagnets with hidden dipoles allow electric fields to induce up to 20 meV chiral magnon splitting in Cr2CCl2 and Cr2CBr2, enabling reversible switching of magnon spin currents.