Synthesis, crystal structure, electric and magnetic properties of new UNiSi2 splat

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10364335" target="_blank" >RIV/00216208:11320/17:10364335 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1063/1.5001301" target="_blank" >http://dx.doi.org/10.1063/1.5001301</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.5001301" target="_blank" >10.1063/1.5001301</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synthesis, crystal structure, electric and magnetic properties of new UNiSi2 splat

Popis výsledku v původním jazyce

We explored the crystal structure, magnetic and transport properties of UNiSi2 material, which was prepared by rapid solidification-splat cooling. The UNiSi2 splat is mostly single phase, the refinement of crystal structure indicated orthorhombic CeNiSi2-type structure (space group Cmcm) with lattice parameters a = 4.0082 angstrom, b = 16.0813 angstrom and c = 4.0064 angstrom. Also SEM analysis revealed the morphology exhibiting dendritic grains in the matrix. TEM images indicate mixed structure formed by crystalline particles embedded into amorphous or nanocrystalline matrix. Magnetic and electrical properties of the splat resemble properties of samples, which were prepared by conventional methods, exhibiting a ferromagnetic transition at about 91K and similar temperature dependence of resistivity. The coercive field of mu H-0(c) = 2.25 T is much enhanced due to the magnetic anisotropy introduced by the sample preparation technique. Barkhausen jumps were observed on the hysteresis loop. Magnetization of the sample does not saturate in magnetic fields up to mu H-0 = 18 T. Published by AIP Publishing.

Název v anglickém jazyce

Synthesis, crystal structure, electric and magnetic properties of new UNiSi2 splat

Popis výsledku anglicky

We explored the crystal structure, magnetic and transport properties of UNiSi2 material, which was prepared by rapid solidification-splat cooling. The UNiSi2 splat is mostly single phase, the refinement of crystal structure indicated orthorhombic CeNiSi2-type structure (space group Cmcm) with lattice parameters a = 4.0082 angstrom, b = 16.0813 angstrom and c = 4.0064 angstrom. Also SEM analysis revealed the morphology exhibiting dendritic grains in the matrix. TEM images indicate mixed structure formed by crystalline particles embedded into amorphous or nanocrystalline matrix. Magnetic and electrical properties of the splat resemble properties of samples, which were prepared by conventional methods, exhibiting a ferromagnetic transition at about 91K and similar temperature dependence of resistivity. The coercive field of mu H-0(c) = 2.25 T is much enhanced due to the magnetic anisotropy introduced by the sample preparation technique. Barkhausen jumps were observed on the hysteresis loop. Magnetization of the sample does not saturate in magnetic fields up to mu H-0 = 18 T. Published by AIP Publishing.

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

Low Temperature Physics

ISSN

1063-777X

e-ISSN

—

Svazek periodika

43

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

UA - Ukrajina

Počet stran výsledku

4

Strana od-do

986-989

Kód UT WoS článku

000412369500018

EID výsledku v databázi Scopus

2-s2.0-85025066313