Structural and magnetic properties of ferromagnetic nano-sized (Ni 1-x Cox )0.85 Se prepared by simple hydrothermal method
Heiba, zein Elabidin; Mostafa, Nasser Y.; Mohamed, Mohamed Bakr; Al-Harthi, H.;
Abstract
Nanocrystalline (Ni1-xCox)0.85Se with 0.0≤x≤1 solid solutions were prepared by a simple hydrothermal route. All samples form a NiAs-type hexagonal structure with metal vacancies. From Rietveld analysis, the lattice parameters are found to decrease nonlinearly with composition x; crystallite size and microstrain vary anisotropically. Magnetic measurements show that Ni0.85Se and Co0.75Se samples exhibit ferromagnetic properties while (Ni0.5Co0.5) 0.85Se shows a paramagnetic behavior at room temperature. For the first time, nano-Ni0.85Se is reported to be ferromagnetic. © 2012 Published by Elsevier B.V. All rights reserved.
Other data
| Title | Structural and magnetic properties of ferromagnetic nano-sized (Ni <inf>1-x</inf>Co<inf>x</inf>)<inf>0.85</inf>Se prepared by simple hydrothermal method | Authors | Heiba, zein Elabidin ; Mostafa, Nasser Y.; Mohamed, Mohamed Bakr; Al-Harthi, H. | Keywords | Chalcogenides;Crystal structure;Magnetic materials;Nanosize | Issue Date | 7-Jan-2013 | Journal | Materials Letters | Volume | 93 | Start page | 115 | End page | 117 | ISSN | 0167577X | DOI | 10.1016/j.matlet.2012.11.079 | Scopus ID | 2-s2.0-84871808389 |
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