Magnetic Properties of the Hydrogenated Unconventional Superconductor UCoGe-H

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F09%3A00206326" target="_blank" >RIV/00216208:11320/09:00206326 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Magnetic Properties of the Hydrogenated Unconventional Superconductor UCoGe-H

Original language description

The effect of hydrogenation on magnetic properties of weakly ferromagnetic superconductor UCoGe was studied. UCoGe hydrides were synthesized at T = 773 K at different pressure of H2 gas (8, 5, 2 bar). The hydrogenation at 8 bar and 5 bar results in the change of the crystal structure from the orthorhombic (TiNiSi structure type) to the hexagonal (ZrBeSi type) giving H concentration little below 2 H at./f.u. For one of such b-hydrides, UCoGeH1.7, the Curie temperature increases from 3 K up to 50 K and the spontaneous magnetic moment from 0.03 mB/f.u. to 0.05 mB/f.u. An a-hydride of UCoGe (DV/V = 0.25 %) with the hydrogen concentration 0.1 H/f.u. was obtained at 2 bar. It has the same type of crystal structure as a pure compound and surprisingly exhibitsno magnetic order.

Czech name

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Czech description

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Type

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

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GA202%2F07%2F0418" target="_blank" >GA202/07/0418: Complex hydrides of f-metals: synthesis, structure and electronic properties</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

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

Name of the periodical

International Journal of Materials Research

ISSN

1862-5282

e-ISSN

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Volume of the periodical

100

Issue of the periodical within the volume

9

Country of publishing house

DE - GERMANY

Number of pages

4

Pages from-to

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UT code for WoS article

000270671600018

EID of the result in the Scopus database

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