Cluster glass properties and magnetic phase separation studies of Nd(x)Bi(0.5-x)Sr(0.5)MnO(3) (x = 0.1, 0.2, 0.3 and 0.4)

Cluster glass properties and magnetic phase separation studies of Nd(x)Bi(0.5-x)Sr(0.5)MnO(3) (x = 0.1, 0.2, 0.3 and 0.4)

The crystal structure, dc and ac magnetic susceptibility, electron spin resonance and magnetoresistive behavior of Nd(x)Bi(0.5-x)Sr(0.5)MnO(3) (x = 0.1, 0.2, 0.3 and 0.4) compounds are studied. The Rietveld analysis of the XRD data shows that the samples crystallize in an orthorhombic perovskite str...

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Veröffentlicht in:Journal of physics. Condensed matter 2009-05, Vol.21 (19), p.195409-195409
Hauptverfasser: Savitha Pillai, S, Santhosh, P N, Harish Kumar, N, John Thomas, P, Tuna, F
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Santhosh, P N
Harish Kumar, N
John Thomas, P
Tuna, F
description The crystal structure, dc and ac magnetic susceptibility, electron spin resonance and magnetoresistive behavior of Nd(x)Bi(0.5-x)Sr(0.5)MnO(3) (x = 0.1, 0.2, 0.3 and 0.4) compounds are studied. The Rietveld analysis of the XRD data shows that the samples crystallize in an orthorhombic perovskite structure, with Pbnm space group for x = 0.1 and 0.2 and Imma space group for x = 0.4 and 0.3. Magnetic studies reveal that substituting Bi with Nd collapses the robust charge ordered AFM state of Bi(0.5)Sr(0.5)MnO(3) to an inhomogeneous magnetic state. As Nd concentration increases there is a gradual appearance of cluster glass behavior. ESR studies reveal that the NBSMO system phase separates into ferromagnetic and antiferromagnetic regions below the transition temperature.
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