Magnetic phase diagram, phase transitions, and cation distribution in Pb<inf>1-x</inf>Ba<inf>x</inf>(Fe<inf>0.5</inf>Nb<inf>0.5</inf>)O<inf>3</inf> perovskites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F22%3A00553333" target="_blank" >RIV/61388980:_____/22:00553333 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/22:00553333

Výsledek na webu

<a href="https://doi.org/10.1016/j.mseb.2022.115627" target="_blank" >https://doi.org/10.1016/j.mseb.2022.115627</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.mseb.2022.115627" target="_blank" >10.1016/j.mseb.2022.115627</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Magnetic phase diagram, phase transitions, and cation distribution in Pb<inf>1-x</inf>Ba<inf>x</inf>(Fe<inf>0.5</inf>Nb<inf>0.5</inf>)O<inf>3</inf> perovskites

Popis výsledku v původním jazyce

The 57Fe-enriched polycrystalline perovskite samples Pb1-xBax(Fe0.5Nb0.5)O3, x = 0.25, 0.5, 0.75 were prepared by a solid-state synthesis and studied in detail by X-ray powder diffraction (XRD), neutron diffraction, measurement of magnetic properties, Mössbauer spectroscopy (MoS), and nuclear magnetic resonance (NMR) in a wide temperature range. The temperature dependences of hyperfine, structural, and magnetic parameters were obtained, with particular attention to their values during magnetic and structural transitions. Relatively broad transitions to antiferromagnetically ordered state were observed in all samples. Néel temperatures TN were determined from the MoS spectra, the spin-glass transition was deduced from the characteristic behavior of the temperature dependences of ZFC/FC susceptibilities and remanent magnetization. Introduction of Ba into the structure gradually disrupts the long-range AFM order present in Pb(Fe0.5Nb0.5)O3, which leads to lowered TN and broadened transition. The magnetic phase diagram of Pb1−xBax(Fe0.5Nb0.5)O3 for the whole mixing interval Pb-Ba was obtained by combining the results of various methods.

Název v anglickém jazyce

Magnetic phase diagram, phase transitions, and cation distribution in Pb<inf>1-x</inf>Ba<inf>x</inf>(Fe<inf>0.5</inf>Nb<inf>0.5</inf>)O<inf>3</inf> perovskites

Popis výsledku anglicky

The 57Fe-enriched polycrystalline perovskite samples Pb1-xBax(Fe0.5Nb0.5)O3, x = 0.25, 0.5, 0.75 were prepared by a solid-state synthesis and studied in detail by X-ray powder diffraction (XRD), neutron diffraction, measurement of magnetic properties, Mössbauer spectroscopy (MoS), and nuclear magnetic resonance (NMR) in a wide temperature range. The temperature dependences of hyperfine, structural, and magnetic parameters were obtained, with particular attention to their values during magnetic and structural transitions. Relatively broad transitions to antiferromagnetically ordered state were observed in all samples. Néel temperatures TN were determined from the MoS spectra, the spin-glass transition was deduced from the characteristic behavior of the temperature dependences of ZFC/FC susceptibilities and remanent magnetization. Introduction of Ba into the structure gradually disrupts the long-range AFM order present in Pb(Fe0.5Nb0.5)O3, which leads to lowered TN and broadened transition. The magnetic phase diagram of Pb1−xBax(Fe0.5Nb0.5)O3 for the whole mixing interval Pb-Ba was obtained by combining the results of various methods.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/LM2018096" target="_blank" >LM2018096: Laboratoř pro syntézu a měření materiálů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Materials Science and Engineering B-Advanced Functional Solid-State Materials

ISSN

0921-5107

e-ISSN

1873-4944

Svazek periodika

278

Číslo periodika v rámci svazku

APR

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

115627

Kód UT WoS článku

000807510300003

EID výsledku v databázi Scopus

2-s2.0-85123767594