Structural, magnetic and magnetocaloric properties of NdPrFe14B and its hydrides

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F19%3A10419193" target="_blank" >RIV/00216208:11320/19:10419193 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/19:00520916

Result on the web

<a href="https://doi.org/10.1088/1742-6596/1389/1/012094" target="_blank" >https://doi.org/10.1088/1742-6596/1389/1/012094</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/1389/1/012094" target="_blank" >10.1088/1742-6596/1389/1/012094</a>

Result language

angličtina

Original language name

Structural, magnetic and magnetocaloric properties of NdPrFe14B and its hydrides

Original language description

A systematic study of the influence of interstitial hydrogen on the structure, morphology of surface, magnetic and magnetothermal properties in multicomponent (Nd0.5Pr0.5)(2)Fe14BHx (x = 0; 2.7; 4.3) are reported. Partial substitution of Pr for Nd allows a decrease of the spin-reorientation transition temperature from 135 K for Nd2Fe14B to 73 K for (Nd0.5Pr0.5)(2)Fe14B. Hydrides (Nd0.5Pr0.5)(2)Fe14BHx crystallize in a tetragonal crystal structure (space group P42/mnm) of the Nd2Fe14B-type. Both lattice constants and unit cell volume increase upon hydrogen absorption. It was also found that the surface of the hydrogenated sample was very severely damaged by the introduction of hydrogen. Magnetic studies of both initial compound and the hydrides were performed on bulk and powder samples in static and pulsed magnetic fields up to 14 and 58 T, respectively. Hydrogenation has a significant effect on magnetic properties of a multicomponent alloy (Nd0.5Pr0.5)(2)Fe14B: Curie temperature and saturation magnetization increase, while temperature of SRT decreases (T-SRT = 63 K for (Nd0.5Pr0.5)(2)Fe14BHx with x = 2.7 and 4.3). The magnetocaloric effect (MCE) in the range of spin-reorientation transition also decreases significantly. We analyzed magnetic properties of (Nd0.5Pr0.5)(2)Fe14BHx and compare them with that of Nd2Fe14BHx . Magnetic phase diagrams are constructed.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

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

Project

<a href="/en/project/LM2018096" target="_blank" >LM2018096: Materials Growth and Measurement Laboratory</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

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

Article name in the collection

Journal of Physics: Conference Series

ISBN

—

ISSN

1742-6588

e-ISSN

1742-6596

Number of pages

7

Pages from-to

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Publisher name

IOP PUBLISHING LTD

Place of publication

BRISTOL

Event location

RAS

Event date

Sep 8, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000562319800094