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Title: Transition of Magnetic Characteristics from Paramagnetic State to Ferromagnetic Phase in Ce{sub 1−x}Ni{sub x}O{sub 2} Nanoparticles

Abstract

Nowadays, oxide-based diluted magnetic semiconductor nanoparticles are the most reliable compounds, wherein they accommodate both spin as well as charge of the electron in single domain, means most preferable for the fabrication of spintronic devices. In this view, we report on new Ce{sub 1−x}Ni{sub x}O{sub 2} (x = 0.00, 0.02, 0.04, 0.06, and 0.08) nanoparticles prepared by precipitation method via polyethylene glycol as a surfactant. XRD analysis revealed that all the synthesized nanoparticles were crystallized in distinct FCC fluorite structure as that of CeO{sub 2} host lattice. Transmission electron microscopy analysis confirmed that all the synthesized samples were in spherical shape with average particle size of 8–10 nm, which is well concord with the grain size estimated from the Scherrer formula. The vibrating sample magnetometer evaluations suggested that pristine host lattice shows signals of paramagnetism; meanwhile, Ni substitution CeO{sub 2} nanoparticles exhibits strong ferromagnetism at room temperature. Particularly, 4% Ni-doped CeO{sub 2} samples shows enhanced ferromagnetism and which is suppressed with raising dopant concentration. The perceived magnetization with respect to the Ni dopant concentration is well anticipated by F-center exchange mechanism. We expect that the observations in this research suggest suitable path for preparing of various oxide-based diluted magnetic semiconductormore » nanoparticles and their applications in fabrication of spintronic devices.« less

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [3];  [2]
  1. National Institute of Technology, Department of Mechanical Engineering (India)
  2. Raghu Engineering College, Department of Mechanical Engineering (India)
  3. Raghu Engineering College, Department of Physics (India)
  4. Pusan National University, Department of Chemistry and Chemical Institute for Functional Materials (Korea, Republic of)
  5. Chonbuk National University, Applied Materials Institute for BIN Convergence, Department of BIN Convergence Technology and Department of Polymer-Nano Science and Technology (Korea, Republic of)
  6. Sri Venkateswara University, Department of Physics (India)
Publication Date:
OSTI Identifier:
22771298
Resource Type:
Journal Article
Journal Name:
Journal of Superconductivity and Novel Magnetism
Additional Journal Information:
Journal Volume: 31; Journal Issue: 5; Other Information: Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; Article Copyright (c) 2017 Springer Science+Business Media, LLC; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1557-1939
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CERIUM OXIDES; CONCENTRATION RATIO; DOPED MATERIALS; F CENTERS; FABRICATION; FCC LATTICES; FERROMAGNETISM; FLUORITE; GRAIN SIZE; MAGNETIC PROPERTIES; MAGNETIC SEMICONDUCTORS; MAGNETIZATION; NANOPARTICLES; NICKEL; NICKEL OXIDES; PARAMAGNETISM; PARTICLE SIZE; POLYETHYLENE GLYCOLS; PRECIPITATION; SPHERICAL CONFIGURATION; SPIN; SURFACTANTS; TEMPERATURE RANGE 0273-0400 K; TRANSMISSION ELECTRON MICROSCOPY; VIBRATING SAMPLE MAGNETOMETERS; X-RAY DIFFRACTION

Citation Formats

Madhav, Peddareddygari Lalith, Teja, K. Ravi, Sreelekha, N., Reddy, D. Amaranatha, Murali, G., Ramanadha, M., Subramanyam, K., E-mail: nanoksr@gmail.com, and Vijayalakshmi, R. P., E-mail: vijayaraguru@gmail.com. Transition of Magnetic Characteristics from Paramagnetic State to Ferromagnetic Phase in Ce{sub 1−x}Ni{sub x}O{sub 2} Nanoparticles. United States: N. p., 2018. Web. doi:10.1007/S10948-017-4375-Z.
Madhav, Peddareddygari Lalith, Teja, K. Ravi, Sreelekha, N., Reddy, D. Amaranatha, Murali, G., Ramanadha, M., Subramanyam, K., E-mail: nanoksr@gmail.com, & Vijayalakshmi, R. P., E-mail: vijayaraguru@gmail.com. Transition of Magnetic Characteristics from Paramagnetic State to Ferromagnetic Phase in Ce{sub 1−x}Ni{sub x}O{sub 2} Nanoparticles. United States. doi:10.1007/S10948-017-4375-Z.
Madhav, Peddareddygari Lalith, Teja, K. Ravi, Sreelekha, N., Reddy, D. Amaranatha, Murali, G., Ramanadha, M., Subramanyam, K., E-mail: nanoksr@gmail.com, and Vijayalakshmi, R. P., E-mail: vijayaraguru@gmail.com. Tue . "Transition of Magnetic Characteristics from Paramagnetic State to Ferromagnetic Phase in Ce{sub 1−x}Ni{sub x}O{sub 2} Nanoparticles". United States. doi:10.1007/S10948-017-4375-Z.
@article{osti_22771298,
title = {Transition of Magnetic Characteristics from Paramagnetic State to Ferromagnetic Phase in Ce{sub 1−x}Ni{sub x}O{sub 2} Nanoparticles},
author = {Madhav, Peddareddygari Lalith and Teja, K. Ravi and Sreelekha, N. and Reddy, D. Amaranatha and Murali, G. and Ramanadha, M. and Subramanyam, K., E-mail: nanoksr@gmail.com and Vijayalakshmi, R. P., E-mail: vijayaraguru@gmail.com},
abstractNote = {Nowadays, oxide-based diluted magnetic semiconductor nanoparticles are the most reliable compounds, wherein they accommodate both spin as well as charge of the electron in single domain, means most preferable for the fabrication of spintronic devices. In this view, we report on new Ce{sub 1−x}Ni{sub x}O{sub 2} (x = 0.00, 0.02, 0.04, 0.06, and 0.08) nanoparticles prepared by precipitation method via polyethylene glycol as a surfactant. XRD analysis revealed that all the synthesized nanoparticles were crystallized in distinct FCC fluorite structure as that of CeO{sub 2} host lattice. Transmission electron microscopy analysis confirmed that all the synthesized samples were in spherical shape with average particle size of 8–10 nm, which is well concord with the grain size estimated from the Scherrer formula. The vibrating sample magnetometer evaluations suggested that pristine host lattice shows signals of paramagnetism; meanwhile, Ni substitution CeO{sub 2} nanoparticles exhibits strong ferromagnetism at room temperature. Particularly, 4% Ni-doped CeO{sub 2} samples shows enhanced ferromagnetism and which is suppressed with raising dopant concentration. The perceived magnetization with respect to the Ni dopant concentration is well anticipated by F-center exchange mechanism. We expect that the observations in this research suggest suitable path for preparing of various oxide-based diluted magnetic semiconductor nanoparticles and their applications in fabrication of spintronic devices.},
doi = {10.1007/S10948-017-4375-Z},
journal = {Journal of Superconductivity and Novel Magnetism},
issn = {1557-1939},
number = 5,
volume = 31,
place = {United States},
year = {2018},
month = {5}
}