Mie-enhanced microfocused Brillouin light scattering for full wave vector resolution of nanoscale spin waves

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F26%3A0200502" target="_blank" >RIV/00216305:26620/26:0200502 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.science.org/doi/10.1126/sciadv.ady8833" target="_blank" >https://www.science.org/doi/10.1126/sciadv.ady8833</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1126/sciadv.ady8833" target="_blank" >10.1126/sciadv.ady8833</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mie-enhanced microfocused Brillouin light scattering for full wave vector resolution of nanoscale spin waves

Popis výsledku v původním jazyce

Magnons, the quanta of spin waves, are magnetic excitations of matter spanning through the entire crystal's Brillouin zone and covering a wide range of frequencies ranging from subgigahertz to terahertz. Magnons play a crucial role in many phenomena, such as the reduction of saturation magnetization with increasing temperature or the Bose-Einstein condensation. However, established experimental techniques cannot resolve magnons with wave vectors between 30 and 300 rad mu m-1. We address this gap by tailoring the Brillouin light scattering process with dielectric periodic nanostripes hosting Mie resonances. This approach enables access to the previously unmeasurable wave vector range while providing at the same time full wave vector resolution, all within a tabletop setup. Filling this gap can stimulate further experimental investigations of the fundamental phenomena associated with magnons as well as applications in computational and microwave devices. In addition, the same methodology can be applied to other excitations of matter, such as phonons, opening up possibilities in, e.g., mechanobiological studies.

Název v anglickém jazyce

Mie-enhanced microfocused Brillouin light scattering for full wave vector resolution of nanoscale spin waves

Popis výsledku anglicky

Magnons, the quanta of spin waves, are magnetic excitations of matter spanning through the entire crystal's Brillouin zone and covering a wide range of frequencies ranging from subgigahertz to terahertz. Magnons play a crucial role in many phenomena, such as the reduction of saturation magnetization with increasing temperature or the Bose-Einstein condensation. However, established experimental techniques cannot resolve magnons with wave vectors between 30 and 300 rad mu m-1. We address this gap by tailoring the Brillouin light scattering process with dielectric periodic nanostripes hosting Mie resonances. This approach enables access to the previously unmeasurable wave vector range while providing at the same time full wave vector resolution, all within a tabletop setup. Filling this gap can stimulate further experimental investigations of the fundamental phenomena associated with magnons as well as applications in computational and microwave devices. In addition, the same methodology can be applied to other excitations of matter, such as phonons, opening up possibilities in, e.g., mechanobiological studies.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10700 - Other natural sciences

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Science Advances

ISSN

—

e-ISSN

2375-2548

Svazek periodika

11

Číslo periodika v rámci svazku

44

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

—

Kód UT WoS článku

001605159600005

EID výsledku v databázi Scopus

2-s2.0-105020652353