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Title: Magnetic properties of α−MnO{sub 2} and Co-doped α−MnO{sub 2} nanowires

α−MnO{sub 2} and Co-doped α−MnO{sub 2} nanowires (NWs) were synthesized by hydrothermal method. The structural characterization by XRD revealed the tetragonal structure of α−MnO{sub 2}. The formation of one dimensional (1D) NWs of pure and Co-doped α−MnO{sub 2} was confirmed from SEM. From UV-Vis absorption spectra, it is found that both pure and Co-doped α−MnO{sub 2} NWs showed blue shift compared to bulk, which revealed the quantum confinement in the synthesized samples. The magnetic properties were analyzed by VSM, which suggest that pure and doped α−MnO{sub 2} exhibit ferromagnetic behavior at room temperature (RT)
Authors:
; ;  [1]
  1. School of Physics, Madurai Kamaraj University, Madurai - 625 021 (India)
Publication Date:
OSTI Identifier:
22269479
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1591; Journal Issue: 1; Conference: 58. DAE solid state physics symposium 2013, Patiala, Punjab (India), 17-21 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; ABSORPTION SPECTRA; COMPARATIVE EVALUATIONS; DOPED MATERIALS; FERROMAGNETIC MATERIALS; FERROMAGNETISM; HYDROTHERMAL SYNTHESIS; MAGNETIC PROPERTIES; QUANTUM WIRES; SCANNING ELECTRON MICROSCOPY; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0273-0400 K; TETRAGONAL LATTICES; VIBRATING SAMPLE MAGNETOMETERS; X-RAY DIFFRACTION