Spin-Wave Dispersion Measurement by Variable-Gap Propagating Spin-Wave Spectroscopy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F21%3APU143265" target="_blank" >RIV/00216305:26620/21:PU143265 - isvavai.cz</a>
Result on the web
<a href="https://journals.aps.org/prapplied/abstract/10.1103/PhysRevApplied.16.054033" target="_blank" >https://journals.aps.org/prapplied/abstract/10.1103/PhysRevApplied.16.054033</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevApplied.16.054033" target="_blank" >10.1103/PhysRevApplied.16.054033</a>
Alternative languages
Result language
angličtina
Original language name
Spin-Wave Dispersion Measurement by Variable-Gap Propagating Spin-Wave Spectroscopy
Original language description
Knowledge of the spin-wave dispersion relation is a prerequisite for the explanation of many magnonic phenomena as well as for the practical design of magnonic devices. Spin-wave dispersion measurement by established optical techniques such as Brillouin light scattering or the magneto-optical Kerr effect at ultralow temperatures is often forbiddingly complicated. By contrast, microwave spectroscopy can be used at all temperatures but it usually lacks spatial and wave-number resolution. Here we develop a variable-gap-propagating-spin-wave-spectroscopy (VGPSWS) method for the deduction of the dispersion relation of spin waves in a wide frequency and wave-number range. The method is based on the phase-resolved analysis of the spin-wave transmission between two antennas with variable spacing, in conjunction with theoretical data treatment. We validate the method for in-plane magnetized Co-Fe-B and yttrium iron garnet thin films in k perpendicular to B and k parallel to B geometries by deducing the full set of material and spin-wave parameters, including spin-wave dispersion, hybridization of the fundamental mode with the higher-order perpendicular standing spin-wave modes, and surface spin pinning. The compatibility of microwaves with low temperatures makes this approach attractive for cryogenic magnonics at the nanoscale.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review Applied
ISSN
2331-7019
e-ISSN
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Volume of the periodical
16
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
„054033-1“-„054033-10“
UT code for WoS article
000723038800001
EID of the result in the Scopus database
2-s2.0-85119976744