Parametric Excitation and Amplification of Spin Waves in Ultrathin Ferromagnetic Nanowires by Microwave Electric Field

2017 ◽  
pp. 385-425
Author(s):  
Roman Verba ◽  
Mario Carpentieri ◽  
Giovanni Finocchio ◽  
Vasil Tiberkevich ◽  
Andrei Slavin
Keyword(s):  
Electric Field ◽  
Parametric Excitation ◽  
Spin Waves ◽  
Ferromagnetic Nanowires

Parametric excitation in an inhomogeneous plasma

1971 ◽  
Vol 5 (1) ◽  
pp. 107-113 ◽  
Author(s):  
C. S. Chen
Keyword(s):  
Electric Field ◽  
Parametric Excitation ◽  
Growth Rates ◽  
Inhomogeneous Plasma ◽  
Electron Plasma ◽  
Transverse Waves ◽  
Circularly Polarized ◽  
Polarized Waves ◽  
Oscillating Electric Field ◽  
Unmagnetized Plasma

An infinite, inhomogeneous electron plasma driven by a spatially uniform oscillating electric field is investigated. The multi-time perturbation method is used to analyze possible parametric excitations of transverse waves and to evaluate their growth rates. It is shown that there exist subharmonic excitations of: (1) a pair of transverse waves in an unmagnetized plasma and (2) a pair of one right and one left circularly polarized wave in a magnetoplasma. Additionally, parametric excitation of two right or two left circularly polarized waves with different frequencies can exist in a magnetoplasma. The subharmonic excitations are impossible whenever the density gradient and the applied electric field are perpendicular. However, parametric excitation is possible with all configurations.

Electric field control of spin waves in ultrathin CoFeB films

2019 ◽  
Vol 100 (22) ◽  
Author(s):  
Bivas Rana ◽  
Samiran Choudhury ◽  
Katsuya Miura ◽  
Hiromasa Takahashi ◽  
Anjan Barman ◽  
...  
Keyword(s):  
Electric Field ◽  
Spin Waves ◽  
Field Control
Sign in / Sign up

Export Citation Format

Share Document