Publication result detail

Unidirectional propagation of zero-momentum magnons

WOJEWODA, O.; HOLOBRÁDEK, J.; PAVELKA, D.; PRIBYTOVA, E.; KRČMA, J.; KLÍMA, J.; PANDA, J.; MICHALIČKA, J.; LEDNICKÝ, T.; CHUMAK, A.; URBÁNEK, M.

Original Title

Unidirectional propagation of zero-momentum magnons

English Title

Unidirectional propagation of zero-momentum magnons

Type

WoS Article

Original Abstract

We report on experimental observation of unidirectional propagation of zero-momentum magnons in synthetic antiferromagnet consisting of strained CoFeB/Ru/CoFeB trilayer. Inherent non-reciprocity of spin waves in synthetic antiferromagnets with uniaxial anisotropy results in smooth and monotonous dispersion relation around Gamma point, where the direction of the phase velocity is reversed, while the group velocity direction is conserved. The experimental observation of this phenomenon by intensity-, phase-, and time-resolved Brillouin light scattering microscopy is corroborated by analytical models and micromagnetic simulations.

English abstract

We report on experimental observation of unidirectional propagation of zero-momentum magnons in synthetic antiferromagnet consisting of strained CoFeB/Ru/CoFeB trilayer. Inherent non-reciprocity of spin waves in synthetic antiferromagnets with uniaxial anisotropy results in smooth and monotonous dispersion relation around Gamma point, where the direction of the phase velocity is reversed, while the group velocity direction is conserved. The experimental observation of this phenomenon by intensity-, phase-, and time-resolved Brillouin light scattering microscopy is corroborated by analytical models and micromagnetic simulations.

Keywords

zero-momentum magnons, spin waves

Key words in English

zero-momentum magnons, spin waves

Authors

WOJEWODA, O.; HOLOBRÁDEK, J.; PAVELKA, D.; PRIBYTOVA, E.; KRČMA, J.; KLÍMA, J.; PANDA, J.; MICHALIČKA, J.; LEDNICKÝ, T.; CHUMAK, A.; URBÁNEK, M.

RIV year

2025

Released

23.09.2024

Publisher

AIP Publishing

Location

MELVILLE

ISBN

1077-3118

Periodical

Applied Physics Letters

Volume

125

Number

13

State

United States of America

Pages from

1

Pages to

6

Pages count

6

URL

https://pubs.aip.org/aip/apl/article/125/13/132401/3313695/Unidirectional-propagation-of-zero-momentum

Full text in the Digital Library

http://hdl.handle.net/11012/250783

BibTex

@article{BUT191196,
  author="Ondřej {Wojewoda} and Jakub {Holobrádek} and Dominik {Pavelka} and Ekaterina {Pribytova} and Jakub {Krčma} and Jan {Klíma} and Jaganandha {Panda} and Jan {Michalička} and Tomáš {Lednický} and Andrii V. {Chumak} and Michal {Urbánek}",
  title="Unidirectional propagation of zero-momentum magnons",
  journal="Applied Physics Letters",
  year="2024",
  volume="125",
  number="13",
  pages="1--6",
  doi="10.1063/5.0218478",
  issn="0003-6951",
  url="https://pubs.aip.org/aip/apl/article/125/13/132401/3313695/Unidirectional-propagation-of-zero-momentum"
}

Documents

132401_1_5.0218478