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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
A study on the origin of room temperature ferromagnetism in Ni1-xGdxO nanoparticles
Original language description
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
Czech name
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Czech description
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Type
J<sub>x</sub> - 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/LO1201" target="_blank" >LO1201: DEVELOPMENT OF THE INSTITUTE FOR NANOMATERIALS, ADVANCED TECHNOLOGIES AND INNOVATION</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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