Magnetic, thermal, and transport properties of single-crystalline U3Fe4Ge4

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10133657" target="_blank" >RIV/00216208:11320/13:10133657 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/13:00392619

Result on the web

<a href="http://dx.doi.org/10.1016/j.jallcom.2012.12.092" target="_blank" >http://dx.doi.org/10.1016/j.jallcom.2012.12.092</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2012.12.092" target="_blank" >10.1016/j.jallcom.2012.12.092</a>

Result language

angličtina

Original language name

Magnetic, thermal, and transport properties of single-crystalline U3Fe4Ge4

Original language description

Magnetic, thermal, and transport properties of a U3Fe4Ge4 single crystal have been studied. The compound crystallizes in the orthorhombic Gd3Cu4Ge4 structure type. U3Fe4Ge4 displays ferromagnetic order below the Curie temperature T-C = 18 K. The magnetism originates from the uranium sublattice, as iron atoms have no ordered magnetic moments. U3Fe4Ge4 exhibits a pronounced easy-axis anisotropy with the anisotropy field exceeding 60 T. The spontaneous magnetic moment is M-s = 1.2 mu(B)/f.u. at T = 2 K. Magnetic contribution to specific heat shows a gap excitation behavior with Delta = 4 meV, which can be related to the magnon gap due to the anisotropy. The Sommerfeld coefficient of the electronic specific heat is gamma = 57 mJ/(mol-U K-2) in the orderedstate, whereas it is much higher (145 mJ/(mol-U K-2) if derived from the paramagnetic state. Electrical resistivity has very high values on the m Omega cm range.

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

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

2013

Confidentiality

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

Name of the periodical

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

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Volume of the periodical

555

Issue of the periodical within the volume

January

Country of publishing house

CH - SWITZERLAND

Number of pages

7

Pages from-to

304-310

UT code for WoS article

000314909700050

EID of the result in the Scopus database

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