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Terahertz Antiferromagnetic Spin Hall Nano-Oscillator
Ran Cheng, Di Xiao, Arne Brataas
We consider the current-induced dynamics of insulating antiferromagnets in a spin Hall geometry. Sufficiently large in-plane currents perpendicular to the Néel order trigger sponta…
Antiferromagnetic Spin Wave Field-Effect Transistor
Ran Cheng, Matthew W. Daniels, Jian-Gang Zhu +1
In a collinear antiferromagnet with easy-axis anisotropy, symmetry dictates that the spin wave modes must be doubly degenerate. Theses two modes, distinguished by their opposite po…
Ultrafast Switching of Antiferromagnets via Spin-transfer Torque
Ran Cheng, Matthew W. Daniels, Jian-Gang Zhu +1
Picosecond switching of the staggered antiferromagnetic order is shown to be realizable through spin-transfer torques from a short current pulse. The coupled dynamics of sublattice…