Electronic and vibrational Raman spectroscopy of Nd$_{0.5}$Sr$_{0.5}$MnO$_3$ through the phase transitions

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dc.creatorSeikh, Md. Motin
dc.creatorSood, A. K.
dc.creatorNarayana, Chandrabhas
dc.date2005-04-20
dc.date.accessioned2026-07-07T03:04:49Z
dc.date.available2026-07-07T03:04:49Z
dc.descriptionRaman scattering experiments have been carried out on single crystals of Nd$_{0.5}$Sr$_{0.5}$MnO$_3$ as a function of temperature in the range of 320-50 K, covering the paramagnetic insulator-ferromagnetc metal transition at 250 K and the charge-ordering antiferromagnetic transition at 150 K. The diffusive electronic Raman scattering response is seen in the paramagnetic phase which continue to exist even in the ferromagnetic phase, eventually disappearing below 150 K. We understand the existence of diffusive response in the ferromagnetic phase to the coexistence of the different electronic phases. The frequency and linewidth of the phonons across the transitions show significant changes, which cannot be accounted for only by anharmonic interactions.
dc.description10 pages, 3 figures published in Pramana - Journal of Physics
dc.identifierhttps://arxiv.org/abs/cond-mat/0504499
dc.identifierhttp://arxiv.org/abs/cond-mat/0504499
dc.identifierPramana - Journal of Physics Vol. 64, No. 1, January 2005 pp. 119-128
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/26230
dc.subjectMaterials Science
dc.titleElectronic and vibrational Raman spectroscopy of Nd$_{0.5}$Sr$_{0.5}$MnO$_3$ through the phase transitions
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