Paramagnetic and anti-ferromagnetic interactions in sol–gel derived Zn1−xMnxO [50 MeV Li3+irradiated (x=0.04) and unirradiated (x=0.02 and 0.04)] samples
- 19 July 2011
- journal article
- ion beam-induced-modifications-in-oxides
- Published by Taylor & Francis Ltd in Radiation Effects and Defects in Solids
- Vol. 166 (8-9), 675-681
- https://doi.org/10.1080/10420150.2011.584313
Abstract
A study of Zn1−x Mn x O (x=0.02 and 0.04) pellets synthesized by sol–gel technique was performed to explore the inherent magnetic interactions. 50 MeV Li3+ ion beam irradiation was employed to a Zn0.96Mn0.04O pellet. Structural, morphological, compositional and magnetic properties of the samples were investigated. The single-phase structural nature was destroyed for a 4 at% Mn-doped sample with the formation instead of a new phase of ZnMnO3, as observed from the X-ray diffraction (XRD) pattern. The intensity of the multiphase component decreases with the ion irradiation. XRD also indicates that Mn incorporation in ZnO increased with increasing doping and, interestingly, with irradiation. The tendency of grain size is the opposite. The magnetic measurements of the samples indicate anti-ferromagnetic interactions coupled with paramagnetic counterparts. The study clearly exhibits the modification of magnetic properties with Li3+ ion beam irradiation. It has been interpreted that structural and compositional quality up-gradation with irradiation is responsible for such changes in magnetic behavior.Keywords
This publication has 10 references indexed in Scilit:
- Stabilization of ZnMnO3 phase from sol–gel synthesized nitrate precursorsJournal of Sol-Gel Science and Technology, 2009
- Role of defects in tailoring structural, electrical and optical properties of ZnOProgress in Materials Science, 2009
- Change in the room temperature magnetic property of ZnO upon Mn dopingJournal of Applied Physics, 2008
- Synthesis and magnetic properties of Mn doped ZnO nanowiresSolid State Communications, 2007
- Irradiation effects with 100MeV Xe ions on optical properties of Al-doped ZnO filmsNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2006
- SHI induced modification of ZnO thin film: Optical and structural studiesNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2006
- Absence of ferromagnetism in Co and Mn substituted polycrystalline ZnOPhysical Review B, 2005
- Zener Model Description of Ferromagnetism in Zinc-Blende Magnetic SemiconductorsScience, 2000
- Production and annealing of electron irradiation damage in ZnOApplied Physics Letters, 1999
- General features of latent track formation in magnetic insulators irradiated with swift heavy ionsPhysical Review B, 1995