Publication result detail

Deeply nonlinear excitation of self-normalized short spin waves

WANG, Q.; VERBA, R.; HEINZ, B.; SCHNEIDER, M.; WOJEWODA, O.; DAVÍDKOVÁ, K.; LEVCHENKO, K.; DUBS, C.; MAUSER, N.; URBÁNEK, M.; PIRRO, P.; CHUMAK, A.

Original Title

Deeply nonlinear excitation of self-normalized short spin waves

English Title

Deeply nonlinear excitation of self-normalized short spin waves

Type

WoS Article

Original Abstract

Spin waves are ideal candidates for wave-based computing, but the construction of magnetic circuits is blocked by a lack of an efficient mechanism to excite long-running exchange spin waves with normalized amplitudes. Here, we solve the challenge by exploiting a deeply nonlinear phenomenon for forward volume spin waves in 200-nm-wide nanoscale waveguides and validate our concept using microfocused Brillouin light scattering spectroscopy. An unprecedented nonlinear frequency shift of more than 2 GHz is achieved, corresponding to a magnetization precession angle of 55 & DEG; and enabling the excitation of spin waves with wavelengths down to 200 nm. The amplitude of the excited spin waves is constant and independent of the input microwave power due to the self-locking nonlinear shift, enabling robust adjustment of the spin-wave amplitudes in future on-chip magnonic integrated circuits.

English abstract

Spin waves are ideal candidates for wave-based computing, but the construction of magnetic circuits is blocked by a lack of an efficient mechanism to excite long-running exchange spin waves with normalized amplitudes. Here, we solve the challenge by exploiting a deeply nonlinear phenomenon for forward volume spin waves in 200-nm-wide nanoscale waveguides and validate our concept using microfocused Brillouin light scattering spectroscopy. An unprecedented nonlinear frequency shift of more than 2 GHz is achieved, corresponding to a magnetization precession angle of 55 & DEG; and enabling the excitation of spin waves with wavelengths down to 200 nm. The amplitude of the excited spin waves is constant and independent of the input microwave power due to the self-locking nonlinear shift, enabling robust adjustment of the spin-wave amplitudes in future on-chip magnonic integrated circuits.

Keywords

spin waves; wave-based computing

Key words in English

spin waves; wave-based computing

Authors

WANG, Q.; VERBA, R.; HEINZ, B.; SCHNEIDER, M.; WOJEWODA, O.; DAVÍDKOVÁ, K.; LEVCHENKO, K.; DUBS, C.; MAUSER, N.; URBÁNEK, M.; PIRRO, P.; CHUMAK, A.

RIV year

2024

Released

01.08.2023

Publisher

AMER ASSOC ADVANCEMENT SCIENCE

Location

WASHINGTON

ISBN

2375-2548

Periodical

Science Advances

Volume

9

Number

32

State

United States of America

Pages count

9

URL

https://www.science.org/doi/10.1126/sciadv.adg4609

Full text in the Digital Library

http://hdl.handle.net/11012/245022

BibTex

@article{BUT184599,
  author="Qi {Wang} and Roman {Verba} and Björn {Heinz} and Michael {Schneider} and Ondřej {Wojewoda} and Kristýna {Davídková} and Khrystyna {Levchenko} and Carsten {Dubs} and Norbert J.J. {Mauser} and Michal {Urbánek} and Phillip {Pirro} and Andrii V. {Chumak}",
  title="Deeply nonlinear excitation of self-normalized short spin waves",
  journal="Science Advances",
  year="2023",
  volume="9",
  number="32",
  pages="9",
  doi="10.1126/sciadv.adg4609",
  issn="2375-2548",
  url="https://www.science.org/doi/10.1126/sciadv.adg4609"
}

Documents

sciadv.adg4609