Characterization of New U-Ni-X-2 Splats and Study of their Physical Properties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10363389" target="_blank" >RIV/00216208:11320/17:10363389 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.12693/APhysPolA.131.994" target="_blank" >http://dx.doi.org/10.12693/APhysPolA.131.994</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.12693/APhysPolA.131.994" target="_blank" >10.12693/APhysPolA.131.994</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Characterization of New U-Ni-X-2 Splats and Study of their Physical Properties

Popis výsledku v původním jazyce

We explored the crystal structure, magnetic, and transport properties of UNiX2 (X = Ge, Si) materials, which were prepared by a conventional metallurgical technique and by rapid solidification - splat cooling. The UNiSi2 splat is mostly single phase, containing only small traces of a minority phase. Magnetic and electrical properties of the splat resemble properties of samples, which were prepared by conventional methods, exhibiting a ferromagnetic transition at about 91 K and similar temperature dependence of resistivity. The coercive field of mu H-0(c) = 4.25 T is much enhanced due to the magnetic anisotropy introduced by the sample preparation technique. The Barkhausen jumps were observed on the hysteresis loop. Magnetization of the sample does not saturate in fields up to mu H-0 = 9 T. The phase structure of UNiGe2 splat is not completely solved and will be subject of our study in future. Our preliminary results indicate the presence of completely new phase with tetragonal crystal structure and antiferromagnetic ordering below 54 K.

Název v anglickém jazyce

Characterization of New U-Ni-X-2 Splats and Study of their Physical Properties

Popis výsledku anglicky

We explored the crystal structure, magnetic, and transport properties of UNiX2 (X = Ge, Si) materials, which were prepared by a conventional metallurgical technique and by rapid solidification - splat cooling. The UNiSi2 splat is mostly single phase, containing only small traces of a minority phase. Magnetic and electrical properties of the splat resemble properties of samples, which were prepared by conventional methods, exhibiting a ferromagnetic transition at about 91 K and similar temperature dependence of resistivity. The coercive field of mu H-0(c) = 4.25 T is much enhanced due to the magnetic anisotropy introduced by the sample preparation technique. The Barkhausen jumps were observed on the hysteresis loop. Magnetization of the sample does not saturate in fields up to mu H-0 = 9 T. The phase structure of UNiGe2 splat is not completely solved and will be subject of our study in future. Our preliminary results indicate the presence of completely new phase with tetragonal crystal structure and antiferromagnetic ordering below 54 K.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/LM2011025" target="_blank" >LM2011025: LMNT - Laboratoře magnetizmu a nízkých teplot - provoz a rozvoj národní výzkumné infrastruktury</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Acta Physica Polonica A

ISSN

0587-4246

e-ISSN

—

Svazek periodika

131

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

3

Strana od-do

994-996

Kód UT WoS článku

000401331400032

EID výsledku v databázi Scopus

2-s2.0-85019632763