Nanopowders of R2Fe14B -type compounds in high magnetic fields: The effects of substitutional and interstitial atoms on inter-sublattice exchange interaction

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F20%3AN0000177" target="_blank" >RIV/26722445:_____/20:N0000177 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/20:00538875

Výsledek na webu

<a href="https://www.confer.cz/proceedings/metal/2020.pdf" target="_blank" >https://www.confer.cz/proceedings/metal/2020.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/metal.2020.3597" target="_blank" >10.37904/metal.2020.3597</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nanopowders of R2Fe14B -type compounds in high magnetic fields: The effects of substitutional and interstitial atoms on inter-sublattice exchange interaction

Popis výsledku v původním jazyce

The fundamental magnetic characteristics of R2Fe14B intermetallics are highly sensitive to atomic substitutions and interstitial absorption of light elements. In this work, both were combined, and the influence of the substitutions in the R-sublattice and hydrogen absorption on the magnetization of (RR’)2Fe14BHx (R is Tm or Er, and R’ is Nd) in magnetic fields up to 58T was studied. (Tm0.5Nd0.5)2Fe14B and (Er0.5Nd0.5)2Fe14B were prepared. By using direct hydrogen absorption, (R0.5Nd0.5)2Fe14BHx compounds were obtained with hydrogen content 0≤x≤5.5. Magnetic measurements of both the parent alloys and their hydrides were carried out on nanopowders. The strength of the inter-sublattice coupling in (Tm0.5Nd0.5)2Fe14B, (Er0.5Nd0.5)2Fe14B and their hydrides is estimated by analysing high-field magnetization data. Itis shown that hydrogenation weakens the inter-sublattice exchange interaction up to 45 %. (Tm0.5Nd0.5)2Fe14B, with the maximum hydrogen content of 5.5 at.H/f.u., reaches the field-induced ferromagnetic state at about 55 T.

Název v anglickém jazyce

Nanopowders of R2Fe14B -type compounds in high magnetic fields: The effects of substitutional and interstitial atoms on inter-sublattice exchange interaction

Popis výsledku anglicky

The fundamental magnetic characteristics of R2Fe14B intermetallics are highly sensitive to atomic substitutions and interstitial absorption of light elements. In this work, both were combined, and the influence of the substitutions in the R-sublattice and hydrogen absorption on the magnetization of (RR’)2Fe14BHx (R is Tm or Er, and R’ is Nd) in magnetic fields up to 58T was studied. (Tm0.5Nd0.5)2Fe14B and (Er0.5Nd0.5)2Fe14B were prepared. By using direct hydrogen absorption, (R0.5Nd0.5)2Fe14BHx compounds were obtained with hydrogen content 0≤x≤5.5. Magnetic measurements of both the parent alloys and their hydrides were carried out on nanopowders. The strength of the inter-sublattice coupling in (Tm0.5Nd0.5)2Fe14B, (Er0.5Nd0.5)2Fe14B and their hydrides is estimated by analysing high-field magnetization data. Itis shown that hydrogenation weakens the inter-sublattice exchange interaction up to 45 %. (Tm0.5Nd0.5)2Fe14B, with the maximum hydrogen content of 5.5 at.H/f.u., reaches the field-induced ferromagnetic state at about 55 T.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

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

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

METAL 2020 : 29th International Conference on Metallurgy and Materials : Conference Proceedings, May 20 - 22, 2020 / Brno, Czech Republic, EU

ISBN

978-80-87294-97-0

ISSN

2694-9296

e-ISSN

—

Počet stran výsledku

7

Strana od-do

1000-1006

Název nakladatele

Tanger, Ltd.

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

20. 5. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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