Results 181 to 190 of about 2,255 (221)

Parametric amplification of spin waves using bulk acoustic waves

2015 IEEE Magnetics Conference (INTERMAG), 2015
P Dhagat, A Jander
exaly   +2 more sources

Combination parametric resonance of spin waves

Soviet Journal of Low Temperature Physics, 1986
The threshold of the parametric instability of spin waves is calculated as a function of external parameters when the longitudinal magnetic field has a two-frequency microwave component and a monochromatic radio-frequency component.
V. S. Borovikov, P. N. Leĭfer, A. M. Frishman   +2 more
openaire   +1 more source

SPIN-WAVE EXPERIMENTS: PARAMETRIC EXCITATION OF ACOUSTIC WAVES AND MODE-LOCKING OF SPIN WAVES

Applied Physics Letters, 1970
In a spin-wave instability experiment, a YIG disk was bonded onto a quartz rod with a transducer attached to it, and was placed in a microwave cavity in a parallel-pumping arrangement. For microwave power above the threshold for spin-wave instability, parametric generation of acoustic waves was observed. The generation was evidenced by the simultaneous
S. Wang, Ta-lin Hsu
openaire   +1 more source

Spin pumping by parametrically excited short-wavelength spin waves

Applied Physics Letters, 2011
We use both parallel and perpendicular parametric pumping techniques to excite short-wavelength spin waves in an yttrium iron garnet film and study the spin current generation from spin waves excited by these pumping methods with the help of the inverse spin-Hall effect in the adjacent Pt layer.
Kurebayashi, H., Dzyapko, O., Demidov, V. E., Fang, D., Ferguson, A. J., Demokritov, S. O.   +5 more
openaire   +2 more sources

Nonlinear Parametric Excitation of Spin Waves

1998
This work is devoted to the nonlinear effects which are connected with parametric interaction of spin waves in ferrites. Parametric processes under the action of both single and numerous microwave signals are considered. The number of original results on amplification of backward volume wave envelope solitons, phase conjugation of pulse signal and echo
G. A. Melkov, A. A. Serga
openaire   +1 more source

Parametric excitation of spin waves by phonon pumping

Journal of Applied Physics, 1973
Parametric excitation of spin waves by a traveling phonon pump is possible because of the magnetoelastic interaction. Expressions for the threshold phonon intensity required for spin-wave pair excitation are presented. The functional dependence of the threshold intensity on pump frequency, internal field, and other pertinent parameters has been ...
Donald H. Lyons, H. Matthews
openaire   +1 more source

Parametric excitation of spin waves in uniaxial ferrites

Technical Physics, 1998
Parametric excitation of spin waves in uniaxial ferrites with large anisotropy is investigated theoretically. First-order processes in a sphere with arbitrary orientation of an external static magnetic field, in which case the pumping is oblique, are studied.
A. V. Nazarov, A. G. Gurevich
openaire   +1 more source

On the transient and stationary parametric excitation of spin waves

Journal of Magnetism and Magnetic Materials, 1999
Abstract Buildup times and the stationary values of spin wave excitations near the Suhl instability threshold are calculated numerically. The study is done in the framework of the two-mode model. The time evolution of the excitation may approach the steady state via oscillations that may last for a very long time.
I Laulicht, P.E Wigen
openaire   +1 more source

Wave Front Reversal of a Dipolar Spin Wave Pulse in a Nonstationary Three-Wave Parametric Interaction

Physical Review Letters, 2000
The effects of wave front reversal and inversion of the time profile are observed experimentally for a dipolar spin wave pulse (carrier frequency omega(1)) interacting in a yttrium-iron garnet film with a weakly localized nonstationary parametric pumping (carrier frequency omega(p) congruent with 2omega(1)) in a three-wave process with conservation law
, Melkov, , Serga, , Tiberkevich, , Oliynyk, , Slavin   +4 more
openaire   +2 more sources

Parametric excitation of spin waves in a nonlinear magnetostatic resonator

Technical Physics, 2008
A theory of spin wave parametric instability is developed that simultaneously allows for cubic anisotropy and first- and second-order uniaxial anisotropies. The contributions of various anisotropies to a dispersion relation and first-and second-order nonlinearity coefficients are considered.
M. A. Popov, I. V. Zavislyak
openaire   +1 more source