A study on the origin of room temperature ferromagnetism in Ni1-xGdxO nanoparticles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F15%3A00002461" target="_blank" >RIV/46747885:24620/15:00002461 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0304885315302766" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0304885315302766</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmmm.2015.06.060" target="_blank" >10.1016/j.jmmm.2015.06.060</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A study on the origin of room temperature ferromagnetism in Ni1-xGdxO nanoparticles

Popis výsledku v původním jazyce

We herein report the existence of room temperature (RT) ferromagnetism (FM) in Gd-doped NiO nanoparticles prepared by hydrothermal process. The Gd-content in Ni1-xGdxO was varied from 0.01 to 0.1 and the resultant structural and magnetic properties due to Gd-doping were studied using X-ray diffraction (XRD), transmission electron microscopy (TEM), micro-Raman spectroscopy and vibrating sample magnetometer (VSM). The composition analysis and charge state were obtained from energy dispersive x-ray spectroscopy (EDS) and x-ray photoelectron spectroscopy (XPS), respectively. Both pure and al-doped NiO nanoparticles retained face centered cubic crystal structure. Formation of any secondary phases or metallic clusters related to pure Gd or Ni is not evidentin the as-synthesized samples. TEM analysis revealed that the particles are spherical with sizes in the range of 8 -18 nm. Micro-Raman spectra showed increase in Ni-vacancies with increase of Gd-concentration. XPS spectra of Gd-doped NiO

Název v anglickém jazyce

A study on the origin of room temperature ferromagnetism in Ni1-xGdxO nanoparticles

Popis výsledku anglicky

We herein report the existence of room temperature (RT) ferromagnetism (FM) in Gd-doped NiO nanoparticles prepared by hydrothermal process. The Gd-content in Ni1-xGdxO was varied from 0.01 to 0.1 and the resultant structural and magnetic properties due to Gd-doping were studied using X-ray diffraction (XRD), transmission electron microscopy (TEM), micro-Raman spectroscopy and vibrating sample magnetometer (VSM). The composition analysis and charge state were obtained from energy dispersive x-ray spectroscopy (EDS) and x-ray photoelectron spectroscopy (XPS), respectively. Both pure and al-doped NiO nanoparticles retained face centered cubic crystal structure. Formation of any secondary phases or metallic clusters related to pure Gd or Ni is not evidentin the as-synthesized samples. TEM analysis revealed that the particles are spherical with sizes in the range of 8 -18 nm. Micro-Raman spectra showed increase in Ni-vacancies with increase of Gd-concentration. XPS spectra of Gd-doped NiO

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/LO1201" target="_blank" >LO1201: ROZVOJ ÚSTAVU PRO NANOMATERIÁLY, POKROČILÉ TECHNOLOGIE A INOVACE TECHNICKÉ UNIVERZITY V LIBERCI</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Journal of Magnetism and Magnetic Materials

ISSN

0304-8853

e-ISSN

—

Svazek periodika

394

Číslo periodika v rámci svazku

NOV 15

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

179-184

Kód UT WoS článku

000360025800030

EID výsledku v databázi Scopus

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