Abstract
The crystal structure, dc and ac magnetic susceptibility, electron spin resonance and magnetoresistive behavior of NdxBi 0.5-xSr0.5MnO3 (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 Bi0.5Sr0.5MnO3 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. © 2009 IOP Publishing Ltd.
Original language | English |
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Article number | 195409 |
Journal | Journal of Physics: Condensed Matter |
Volume | 21 |
Issue number | 19 |
DOIs | |
Publication status | Published - 2009 |