Strongly coupled magnon–phonon dynamics in a single nanomagnet
Abstract
Abstract Polaritons are widely investigated quasiparticles with fundamental and technological significance due to their unique properties. They have been studied most extensively in semiconductors when photons interact with various elementary excitations. However, other strongly coupled excitations demonstrate similar dynamics. Specifically, when magnon and phonon modes are coupled, a hybridized magnon–phonon quasiparticle can form. Here, we report on the direct observation of coupled magnon–phonon dynamics within a single thin nickel nanomagnet. We develop an analytic description to model the dynamics in two dimensions, enabling us to isolate the parameters influencing the frequency splitting. Furthermore, we demonstrate tuning of the magnon–phonon interaction into the strong coupling regime via the orientation of the applied magnetic field.
- Authors:
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
- OSTI Identifier:
- 1619525
- Alternate Identifier(s):
- OSTI ID: 1596676
- Grant/Contract Number:
- AC02-05CH11231; ECCS-1509020; DMR-1506104
- Resource Type:
- Published Article
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Name: Nature Communications Journal Volume: 10 Journal Issue: 1; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United Kingdom
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Berk, Cassidy, Jaris, Mike, Yang, Weigang, Dhuey, Scott, Cabrini, Stefano, and Schmidt, Holger. Strongly coupled magnon–phonon dynamics in a single nanomagnet. United Kingdom: N. p., 2019.
Web. doi:10.1038/s41467-019-10545-x.
Berk, Cassidy, Jaris, Mike, Yang, Weigang, Dhuey, Scott, Cabrini, Stefano, & Schmidt, Holger. Strongly coupled magnon–phonon dynamics in a single nanomagnet. United Kingdom. https://doi.org/10.1038/s41467-019-10545-x
Berk, Cassidy, Jaris, Mike, Yang, Weigang, Dhuey, Scott, Cabrini, Stefano, and Schmidt, Holger. Fri .
"Strongly coupled magnon–phonon dynamics in a single nanomagnet". United Kingdom. https://doi.org/10.1038/s41467-019-10545-x.
@article{osti_1619525,
title = {Strongly coupled magnon–phonon dynamics in a single nanomagnet},
author = {Berk, Cassidy and Jaris, Mike and Yang, Weigang and Dhuey, Scott and Cabrini, Stefano and Schmidt, Holger},
abstractNote = {Abstract Polaritons are widely investigated quasiparticles with fundamental and technological significance due to their unique properties. They have been studied most extensively in semiconductors when photons interact with various elementary excitations. However, other strongly coupled excitations demonstrate similar dynamics. Specifically, when magnon and phonon modes are coupled, a hybridized magnon–phonon quasiparticle can form. Here, we report on the direct observation of coupled magnon–phonon dynamics within a single thin nickel nanomagnet. We develop an analytic description to model the dynamics in two dimensions, enabling us to isolate the parameters influencing the frequency splitting. Furthermore, we demonstrate tuning of the magnon–phonon interaction into the strong coupling regime via the orientation of the applied magnetic field.},
doi = {10.1038/s41467-019-10545-x},
journal = {Nature Communications},
number = 1,
volume = 10,
place = {United Kingdom},
year = {Fri Jun 14 00:00:00 EDT 2019},
month = {Fri Jun 14 00:00:00 EDT 2019}
}
https://doi.org/10.1038/s41467-019-10545-x
Web of Science
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