Room temperature long range ferromagnetic ordering in Ni{sub 0.58}Zn{sub 0.42}Co{sub 0.10}Cu{sub 0.10}Fe{sub 1.8}O{sub 4} nano magnetic system

Journal Article · Wed Jun 24 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4917755· OSTI ID:22490289

Sarveena,; Chand, Jagdish; Verma, S.; Singh, M. ^[1]; Kotnala, R. K. ^[2]; Batoo, K. M. ^[3]

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1. Department of Physics, Himachal Pradesh University, Shimla 171005 (India)
2. National Physical Laboratory, Pusa Road, New Delhi 110012 (India)
3. King Abdullah Institute for Nanotechnology, Riyadh, 11451 (Saudi Arabia)

The structural and magnetic behavior of sol-gel autocombustion synthesized nanocrystalline Ni{sub 0.58}Zn{sub 0.42}Co{sub 0.10}Cu{sub 0.10}Fe{sub 1.8}O{sub 4} have been investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM), Mössbauer spectroscopy and vibrating sample magnetometer(VSM). Sample of high purity and high homogeneity was obtained by calcination at low temperature (500°C) resulting in nanoparticles of average diameter ∼15nm as determined by XRD and further confirmed by TEM. X-ray diffraction (XRD) and selective area diffraction (SAED) confirmed the single phase of the sample. Mössbauer results are supported by magnetization data. Well defined sextets and appearance of hysteresis at room temperature indicate the existence of ferromagnetic coupling at room temperature finding material utility in magnetic storage data. The existence of iron in ferric state confirmed by isomer shift is a clear evidence of improved magnetic properties of the present system.

• OSTI ID: 22490289
• Journal Information: AIP Conference Proceedings, Vol. 1665, Issue 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CALCINATION
COBALT COMPOUNDS
COPPER COMPOUNDS
CRYSTALS
ELECTRON DIFFRACTION
FERRITES
FERROMAGNETISM
ISOMER SHIFT
MAGNETIC PROPERTIES
MAGNETIZATION
MOESSBAUER EFFECT
NANOPARTICLES
NANOSTRUCTURES
NICKEL COMPOUNDS
SOL-GEL PROCESS
TEMPERATURE DEPENDENCE
TRANSMISSION ELECTRON MICROSCOPY
VIBRATING SAMPLE MAGNETOMETERS
X-RAY DIFFRACTION
ZINC COMPOUNDS