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Spin glass behaviour in Fe-substituted LPMO manganite

Abstract: Study of the nonlinear magnetic susceptibility, ??nl, of La0.7Pb0.3(Mn1?xFe??)O3 manganite reveals that, as in an archetypical spin glass (SG), ??nl in La0.7Pb0.3Mn0.8Fe0.2??3 diverges at the SG freezing temperature, ?????=?80.0(5)K, with a critical exponent ??=?1.80(5) and satisfies the static and dynamic scaling equations of state with the order?parameter critical exponent ??=?0.56(4) and the dynamic critical exponent z????=?10.0(5). The SG behaviour stems from the competition between the ferromagnetic double?exchange and antiferromagnetic superexchange interactions.

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Authorship: Bitla Y., Kaul S.N., Barquín L.F.,

Congress: DAE Solid State Physics Symposium (55º : 2010 : Manipal, India)

Publisher: American Institute of Physics

Year of publication: 2011

Publication type: Conference object

DOI: 10.1063/1.3605769

ISSN: 0094-243X,1551-7616

Publication Url: https://doi.org/10.1063/1.3605769

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Authorship

BITLA, YUGANDHAR

KAUL, S. N.

LUIS FERNANDEZ BARQUIN

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