Strain driven magnetism in thin films of LaCoO3

dc.creatorGupta, Kapil
dc.creatorMahadevan, Priya
dc.date2009-01-01
dc.date.accessioned2026-07-07T12:23:44Z
dc.date.available2026-07-07T12:23:44Z
dc.descriptionThe electronic structure of epitaxial films on LaCoO3(LCO) has been studied within first principle electronic structure calculations. A spin state transition is found to take place as a function of lattice strain which freezes in the intermediate spin state for non zero strain. In contrast to earlier speculations this is found to arise from substrate strain alone and angle variations are small. The intermediate spin state also stabilizes ferromagnetism in the ground state. The anomalous temperature dependence of the X-ray absorption spectra for films of LCO on LCO and its absence in films of LCO on (LaAlO_{3})_{0.3}(SrAlTaO_{6})_{0.7}$(LSAT) is also explained.
dc.descriptionTo appear in Phys. Rev B (Rapid Comm.)
dc.identifierhttps://arxiv.org/abs/0901.0162
dc.identifierhttp://arxiv.org/abs/0901.0162
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214094
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleStrain driven magnetism in thin films of LaCoO3
dc.typetext

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