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Title: Investigation on structural, optical and magnetic properties of double perovskite Gd{sub 2}NiMnO{sub 6}

Single phase double perovskite Gd{sub 2}NiMnO{sub 6} was prepared by conventional solid state reaction route. X-ray diffraction (XRD) result reveals that the compound possess monoclinic structure with space group P2{sub 1}/n. Optical characterization performed at room temperature via UV-visible spectroscopy confirms Gd{sub 2}NiMnO{sub 6} as a direct band-gap material with band gap of ∼1.5 eV. Magnetization measurement in Zero field cooled (ZFC) condition at H = 100 Oe shows magnetic transition at ∼ 125 K. Due to competing interactions between magnetic ions (Ni{sup 2+} and Mn{sup 4+}), we could observe two magnetic transition below 40 K.
Authors:
; ; ;  [1] ;  [2]
  1. Department of Physics and Astronomy, National Institute of Technology, Rourkela-769008, Odisha (India)
  2. UGC-DAE-Consortium for Scientific Research Mumbai Centre, R-5 Shed, BARC, Mumbai-400085 (India)
Publication Date:
OSTI Identifier:
22490611
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1665; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION SPECTROSCOPY; ENERGY GAP; EV RANGE; GADOLINIUM COMPOUNDS; MAGNETIC PROPERTIES; MAGNETIZATION; MANGANATES; MANGANESE IONS; MONOCLINIC LATTICES; NICKEL COMPOUNDS; NICKEL IONS; PEROVSKITE; SOLIDS; TEMPERATURE RANGE 0273-0400 K; ULTRAVIOLET RADIATION; VISIBLE SPECTRA; X-RAY DIFFRACTION