Magnetocaloric properties of distilled gadolinium: Effects of structural inhomogeneity and hydrogen impurity

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10271613" target="_blank" >RIV/00216208:11320/14:10271613 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/14:00434834

Result on the web

<a href="http://dx.doi.org/10.1063/1.4883744" target="_blank" >http://dx.doi.org/10.1063/1.4883744</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4883744" target="_blank" >10.1063/1.4883744</a>

Result language

angličtina

Original language name

Magnetocaloric properties of distilled gadolinium: Effects of structural inhomogeneity and hydrogen impurity

Original language description

High-purity Gd prepared by distillation is a structurally inhomogeneous system consisting of needle-shaped crystals of cross section 0.5-2.5 mu m with near-c-axis orientation embedded in a matrix of nanosized (30-100 nm) grains. By measuring the magnetocaloric effect (MCE) directly, we find that the MCE values differ markedly for the plate-shaped samples cut out of a distillate along and perpendicular to the crystals. The effect of small controlled amounts of impurity (hydrogen) on the properties of distilled Gd is further studied. We observe opposite trends in the MCE response to hydrogen charging with respect to the crystal's orientation within the samples and discuss mechanisms interrelating the unique structural morphology with the impurity behavior. As an overall assessment, the Curie temperatures of alpha-GdHx solid solutions increase from 291K up to 294K when increasing hydrogen concentration x from 0 to 0.15. Hydrogenation is found to broaden the ferromagnetic-to-paramagnetic p

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

—

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2014

Confidentiality

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

Name of the periodical

Applied Physics Letters

ISSN

0003-6951

e-ISSN

—

Volume of the periodical

104

Issue of the periodical within the volume

24

Country of publishing house

US - UNITED STATES

Number of pages

5

Pages from-to

—

UT code for WoS article

000337915000046

EID of the result in the Scopus database

—