Structural and magnetic properties of La0.85Ca0.15Mn1a degree x Cr x O3

Chromium (Cr) is doped at the Mn site of La0.85Ca0.15MnO3 system to explore its complex ferromagnetic insulating (FMI) state. The Rietveld refinement of neutron diffraction data indicates that there is no structural change owing to Cr substitution in La0.85Ca0.15Mn1a degree x Cr x O3 (0a[control][cu...

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Bibliographic Details
Published inMaterials letters Vol. 65; no. 5; pp. 922 - 925
Main Authors Mollah, S, Dhiman, I, Das, A
Format Journal Article
LanguageEnglish
Published 15.03.2011
Subjects
Chromium
Couplings
Ferromagnetism
Magnetic moment
Magnetic properties
Manganese
Neutron diffraction
Parents
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Summary:Chromium (Cr) is doped at the Mn site of La0.85Ca0.15MnO3 system to explore its complex ferromagnetic insulating (FMI) state. The Rietveld refinement of neutron diffraction data indicates that there is no structural change owing to Cr substitution in La0.85Ca0.15Mn1a degree x Cr x O3 (0a[control][curren] x a[control][curren]0.1). Nevertheless, it strengthens the magnetic couplings and the system shifts towards enhanced ferromagnetic (FM) ordering. Doping with Cr is found to stabilise the FMI state at low temperatures. The magnetic moment of the parent compound (for x =0) obtained from neutron diffraction data recorded at low temperature (17K) is found to be ~3.53(5)I14B and is close to the theoretically estimated value of 3.85I14B. This value is higher than previously reported value of 2.90I14B.
Bibliography:ObjectType-Article-2
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ISSN:0167-577X
DOI:10.1016/j.matlet.2010.11.057