TY - JOUR
T1 - Spin pumping driven by bistable exchange spin waves
AU - Ando, K.
AU - Saitoh, E.
PY - 2012/7/11
Y1 - 2012/7/11
N2 - Spin pumping driven by bistable exchange spin waves is demonstrated in a Pt/Y 3Fe 5O 12 film under parametric excitation. In the Pt/Y 3Fe 5O 12 film, the spin pumping driven by parametric excitation selectively enhances the relaxation of short-wavelength exchange spin waves, indicating strong coupling between the exchange spin waves and spin currents at the interface through efficient spin transfer. The parametric spin pumping, furthermore, allows direct access to nonlinear spin wave dynamics in combination with the inverse spin Hall effect, revealing unconventional bistability of the exchange spin waves.
AB - Spin pumping driven by bistable exchange spin waves is demonstrated in a Pt/Y 3Fe 5O 12 film under parametric excitation. In the Pt/Y 3Fe 5O 12 film, the spin pumping driven by parametric excitation selectively enhances the relaxation of short-wavelength exchange spin waves, indicating strong coupling between the exchange spin waves and spin currents at the interface through efficient spin transfer. The parametric spin pumping, furthermore, allows direct access to nonlinear spin wave dynamics in combination with the inverse spin Hall effect, revealing unconventional bistability of the exchange spin waves.
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U2 - 10.1103/PhysRevLett.109.026602
DO - 10.1103/PhysRevLett.109.026602
M3 - Article
AN - SCOPUS:84863650871
SN - 0031-9007
VL - 109
JO - Physical review letters
JF - Physical review letters
IS - 2
M1 - 026602
ER -