Magnetic, transport and magnetoresistance behavior of Ni doped La{sub 0.67}Sr{sub 0.33}Mn{sub 1−x}Ni{sub x}O{sub 3} (0.00≤x≤0.09) system

Journal Article · Thu Aug 15 04:00:00 EDT 2013 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/J.JSSC.2013.05.018· OSTI ID:22274040

Gupta, Maneesha ^[1]; Kotnala, R. K. ^[2]; Khan, Wasi ^[1]; Azam, Ameer ^[1]; Naqvi, A. H. ^[1]

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1. Center of Excellence in Materials Science (Nanomaterials), Department of Applied Physics, Z.H. College of Engg. and Technology, Aligarh Muslim University, Aligarh 202002 (India)
2. National Physical Laboratory (NPL), K.S. Krishnan Marg, New Delhi 110012 (India)

The magnetic, electrical and magnetoresistance behavior of Ni doped La{sub 2/3}Sr{sub 1/3}Mn{sub 1−x}Ni{sub x}O{sub 3} (0.00≤x≤0.09) samples have been studied systematically. Rietveld analysis of XRD shows the formation of pure crystalline phase with rhombohedral symmetry. It has been found that with increasing Ni concentration, magnetization, resistivity, magnetoresistance (MR), Curie temperature (T{sub c}) and metal–insulator transition temperature of the samples changes drastically. Doping of Ni at Mn site shows an inverse behavior of %MR at 300 K and 77 K. Further study revealed that all samples show a low field magnetoresistance at low temperature (77 K) which found to increase with the increase of Ni doping. Further, X-ray photoelectron spectrum (XPS) confirms the ionic state of Ni to be Ni{sup 2+}. In the light of this study, we can say that Ni doped La{sub 0.67}Sr{sub 0.33}MnO{sub 3} can be synthesized with fine tuning of the dopant ion to bring down T{sub c} further for its application in Magnetic Hyperthermia. - Graphical abstract: The magnetic, electrical and magnetoresistance behavior of Nickel doped La{sub 2/3}Sr{sub 1/3}Mn{sub 1−x}Ni{sub x}O{sub 3} (0.00≤x≤0.09) samples have been studied systematically. Highlights: • Ni doped La{sub 2/3}Sr{sub 1/3}Mn{sub 1−x}Ni{sub x}O{sub 3} samples synthesized by solid state reaction route. • Studied the magnetic, electrical and magnetoresistance behavior of the samples. • T{sub c} of the samples decreases whereas resistivity increases with Ni doping. • Samples show excellent properties for magnetic Hyperthermia application.

• OSTI ID: 22274040
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Vol. 204; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
CURIE POINT
DOPED MATERIALS
HYPERTHERMIA
MAGNETIZATION
MAGNETORESISTANCE
NICKEL
NICKEL IONS
SOLIDS
TRIGONAL LATTICES
X RADIATION
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY