Ven. 17/01/2020 15:00 Grande Ourse, Bâtiment 13, Etage 1 (à confirmer)
DEVOLDER Thibaut (C2N, Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France)
Spin waves as state variables for logic and analog circuits
Spin-waves, or their quantized counterparts (magnons) are propagating waves formed by the collective spin excitations in a magnetic body. In standard magnetic thin films and devices, spin-waves have typically frequencies in the 1-50 GHz range and wavelengths from 10 nm to 10 µm. As spin-waves determine to a large extent the rate at which one can manipulate the magnetization, they are of central importance in various applications of spin electronics, e.g. solid state magnetic memories, microwave magnetic oscillators and magnetization-based rf devices.
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