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Title: Structural and electronic transport studies of self-doped Pr{sub 1−x}MnO{sub 3±δ} manganites

Structural and electrical transport studies on polycrystalline self-doped Pr{sub 1−x}MnO{sub 3±δ} (with x=0, 0.1 and 0.125) have been done using XRD and low-temperature resistivity measurement. The results of the Rietveld refinement of XRD data show that all these compounds crystallize in an orthorhombic structure with Pnma space-group. With increasing A-site vacancies, the unit cell volume decrease and lattice parameters undergo non monotonous change. The electrical transport studies reveal insulating behaviour with small polaron hopping above T{sub C} and a kink corresponding to canted-antiferromagnetic spin ordering.
Authors:
;  [1]
  1. UGC-DAE Consortium for Scientific Research, University campus, Khandwa Road, Indore-452001 (India)
Publication Date:
OSTI Identifier:
22269348
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; ANTIFERROMAGNETISM; DOPED MATERIALS; LATTICE PARAMETERS; ORTHORHOMBIC LATTICES; POLYCRYSTALS; SPACE GROUPS; SPIN; X-RAY DIFFRACTION