Chaotic spin-wave solitons in magnetic film feedback rings.
نویسندگان
چکیده
Chaotic spin-wave solitons in magnetic film active feedback rings were observed for the first time. At some ring gain level, one observes the self-generation of a single spin-wave soliton pulse in the ring. When the pulse circulates in the ring, its amplitude varies chaotically with time. Numerical simulations based on a gain-loss nonlinear Schrödinger equation reproduce the observed responses.
منابع مشابه
Excitation of chaotic spin waves in magnetic film feedback rings through three-wave nonlinear interactions.
This Letter reports experimental results on the three-wave interactions of backward volume spin waves in a magnetic film and the excitation of chaotic waves through such interactions in a magnetic film-based active feedback ring. The three-wave interactions manifest themselves in the power saturation responses of spin waves, and the chaotic excitation manifests itself in chaotic waveforms and b...
متن کاملSelf-generation of chaotic solitary spin wave pulses in magnetic film active feedback rings.
The chaotic self-generation of short solitary spin wave pulses has been observed for the first time. The pulses were produced from parametrically excited spin waves in an yttrium-iron-garnet film in an active feedback ring under conditions where both three-wave and four-wave parametric processes were allowed. The power-frequency spectrum was broadband and chaotic.
متن کاملObservation of spin-wave soliton fractals in magnetic film active feedback rings.
The manifestation of fractals in soliton dynamics has been observed for the first time. The experiment utilized self-generated spin-wave envelope solitons in a magnetic film based active feedback ring. At high ring gain, the soliton that circulates in the ring breathes in a fractal pattern. The corresponding power frequency spectrum shows a comb structure, with each peak in the comb having its ...
متن کاملTuning of chaotic surface spin waves in a magnetic-film feedback ring via the ring gain
This paper reports on experimental data on the controlled tuning of chaotic surface spin waves in a magnetic-film active feedback ring. The chaotic behavior of these waves arises through three-wave nonlinear interactions. With a change in the ring gain, two chaotic regimes were observed. One corresponds to the situation where only one ring eigenmode was excited in the ring, while the other corr...
متن کاملGeneration of Spin-Wave Envelope Dark Solitons
Experimental study of nonlinear waves in different physical systems is an attractive area of research, not only from the fundamental point of view, but also for future applications of nonlinear properties of solids. So far the most impressive results have been demonstrated in nonlinear guided-wave optics (see, e.g., Refs. [1,2]). In a sharp contrast, the experimental study of nonlinear waves in...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Physical review letters
دوره 107 11 شماره
صفحات -
تاریخ انتشار 2011