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Title: Effect of grain size on charge and magnetic ordering in Bi{sub 0.67}Ca{sub 0.33}MnO{sub 3}

In the present work we report the electron spin resonance(ESR) and magnetic measurements to understand the effect of grain size on the charge ordering (CO), orbital ordering (OO), long range anti ferromagnetic (AFM) ordering in Bi{sub 0.67}Ca{sub 0.33}MnO{sub 3} manganite synthesized by sol-gel method. The temperature dependence of linewidth (ΔH) of the ESR signal and magnetization have been used to get information about magnetic interactions. The CO is suppressed and AFM ordering remains unaffected with increase in grain size of the sample. The competition between FM and AFM correlations is strongly dependent on the grain size of the sample.
Authors:
;  [1]
  1. School of Physics, University of Hyderabad, Central University, Hyderabad- 500046 (India)
Publication Date:
OSTI Identifier:
22269354
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:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ATOMIC FORCE MICROSCOPY; COMPETITION; ELECTRON SPIN RESONANCE; GRAIN SIZE; INTERACTIONS; MAGNETIZATION; SOL-GEL PROCESS; TEMPERATURE DEPENDENCE