Search for Nonlinear THz Absorption by Electromagnons in Multiferroic Hexaferrites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F22%3A00361857" target="_blank" >RIV/68407700:21340/22:00361857 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/22:00561853 RIV/61388980:_____/22:00561853

Výsledek na webu

<a href="https://doi.org/10.7566/JPSJ.91.104703" target="_blank" >https://doi.org/10.7566/JPSJ.91.104703</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.7566/JPSJ.91.104703" target="_blank" >10.7566/JPSJ.91.104703</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for Nonlinear THz Absorption by Electromagnons in Multiferroic Hexaferrites

Popis výsledku v původním jazyce

Complex frustrated magnetic structures in multiferroic hexaferrites are well tunable by temperature, magnetic field and doping. We investigated the influence of strong THz pulses generated by superradiant THz sources on magnetic structure and related electromagnons’ absorption in Y- and Z-type multiferroic hexaferrites. While in Z-type hexaferrite (Ba0.2Sr0.8)3Co2Fe24O41 polycrystal, the observed changes in transmission spectra were fully described by sample heating, a blue-shift of the electromagnon frequency observed in Y-type hexaferrite Ba0.2Sr1.8Co2(Fe0.96Al0.04)12O22 single-crystal could be possibly ascribed to the transition from the alternating longitudinal conical to the transverse conical magnetic structure. We elaborated a nonlinear model which explained absence of nonlinearity in Z-type hexaferrite (Ba0.2Sr0.8)3Co2Fe24O41. For Y-type hexaferrite Ba0.2Sr1.8Co2(Fe0.96Al0.04)12O22, we discuss possible transient or even permanent effects of both THz electric and magnetic fields on its magnetic structure.

Název v anglickém jazyce

Search for Nonlinear THz Absorption by Electromagnons in Multiferroic Hexaferrites

Popis výsledku anglicky

Complex frustrated magnetic structures in multiferroic hexaferrites are well tunable by temperature, magnetic field and doping. We investigated the influence of strong THz pulses generated by superradiant THz sources on magnetic structure and related electromagnons’ absorption in Y- and Z-type multiferroic hexaferrites. While in Z-type hexaferrite (Ba0.2Sr0.8)3Co2Fe24O41 polycrystal, the observed changes in transmission spectra were fully described by sample heating, a blue-shift of the electromagnon frequency observed in Y-type hexaferrite Ba0.2Sr1.8Co2(Fe0.96Al0.04)12O22 single-crystal could be possibly ascribed to the transition from the alternating longitudinal conical to the transverse conical magnetic structure. We elaborated a nonlinear model which explained absence of nonlinearity in Z-type hexaferrite (Ba0.2Sr0.8)3Co2Fe24O41. For Y-type hexaferrite Ba0.2Sr1.8Co2(Fe0.96Al0.04)12O22, we discuss possible transient or even permanent effects of both THz electric and magnetic fields on its magnetic structure.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

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

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Journal of the Physical Society of Japan

ISSN

0031-9015

e-ISSN

—

Svazek periodika

91

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

JP - Japonsko

Počet stran výsledku

13

Strana od-do

—

Kód UT WoS článku

000859495400001

EID výsledku v databázi Scopus

2-s2.0-85150923860