Electronic Structure, Phonons and Dielectric Anomaly in Ferromagnetic Insulating Double Perovskite La2NiMnO6

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dc.creatorDas, Hena
dc.creatorWaghmare, Umesh V.
dc.creatorSaha-Dasgupta, T.
dc.creatorSarma, D. D.
dc.date2008-05-08
dc.date.accessioned2026-07-07T09:37:43Z
dc.date.available2026-07-07T09:37:43Z
dc.descriptionUsing first-principles density functional calculations, we study the electronic and magnetic properties of ferromagnetic insulating double-perovskite compound La2NiMnO6, which has been reported to exhibit interesting magnetic field sensitive dielectric anomaly as a function of temperature. Our study reveals existence of very soft infra-red active phonons that couple strongly with spins at the Ni and Mn sites through modification of the super-exchange interaction. We suggest that these modes are the origin for observed dielectric anomaly in La2NiMnO6.
dc.description4 pages,3 figures
dc.identifierhttps://arxiv.org/abs/0805.1112
dc.identifierhttp://arxiv.org/abs/0805.1112
dc.identifierPRL 100,186402 (2008)
dc.identifierdoi:10.1103/PhysRevLett.100.186402
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/160561
dc.subjectMaterials Science
dc.titleElectronic Structure, Phonons and Dielectric Anomaly in Ferromagnetic Insulating Double Perovskite La2NiMnO6
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