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Welcome to the Institutional Repository of Progressive Education Society's Modern College of Arts, Science and Commerce (Autonomous), Shivajinagar, Pune-5. The repository is launched as a part of Golden Jubilee celebrations of the establishment of the college in February 2020. It comprises of the Institutional and Faculty publications, Research Papers, Conference Proceedings, E-contents developed by the faculty members, Theses and Dissertations, Project Rreports, Assignments, Newspaper Clippings, Question Papers, College Magazines, Annual Report, E-bulletin etc.

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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/180
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dc.contributor.authorGawai, U.P.-
dc.contributor.authorGaikwad, D.K.-
dc.contributor.authorBodke, M.R.-
dc.contributor.authorKhawal, H.A.-
dc.contributor.authorPandey, K.K.-
dc.contributor.authorYadav, A.K.-
dc.contributor.authorJha, S.N.-
dc.contributor.authorBhattacharya, D.-
dc.contributor.authorDole, B.N.-
dc.date.accessioned2020-02-13T11:58:29Z-
dc.date.available2020-02-13T11:58:29Z-
dc.date.issued2019-
dc.identifier.issn1463-9076 (print); 1463-9084 (web)-
dc.identifier.urihttps://doi.org/10.1039/C8CP05267K-
dc.description.abstractCore–shell nanoparticles of Co (0%, 3%, and 5%) doped Ni/NiO and incorporated (5 mg) graphene oxide (GO) sheets were synthesized by a sol–gel auto-combustion method. X-ray absorption near edge structure (XANES), extended X-ray absorption fine structure (EXAFS) and pair distribution function measurements were employed for the determination of the local structure and structural properties of the samples. Due to the effect of Co doping the bond lengths of all coordinate atoms were varied. The microstructural features in the core–shell structured particles were evaluated with high-resolution transmission electron microscopy (HRTEM). Magnetic properties of the samples revealed that both the interface of Ni/Co and NiO crystal lattices and the weight fraction of Ni have significant impact on their magnetic properties at 5 K to 300 K. Experimental results show that Co doping and GO incorporation into Ni/NiO suppress the antiferromagnetic charge ordering and lead to a spin-flop metamagnetic behavior at 5 K to 300 K temperatures. Above 5 K, the step-like transitions transform into broad ones. This step-like feature is correlated with the collapse of the balance between the magnetic energy and elastic energy at the core–shell interface. It is confirmed from M–T measurements that the blocking temperature of Ni/NiO was reduced with Co content.en_US
dc.language.isoenen_US
dc.publisherPhysical Chemistry Chemical Physics (PCCP), ROYAL SOCIETY OF CHEMISTRYen_US
dc.subjectCHEMISTRYen_US
dc.subjectPHYSICAL CHEMISTRYen_US
dc.subjectX-ray absorption spectroscopyen_US
dc.subjectNANOTECHNOLOGYen_US
dc.subjectlocal structure of metamagnetic Co doped Ni/NiO:GO core–shell nanoparticlesen_US
dc.titleDoping effect on the local structure of metamagnetic Co doped Ni/NiO:GO core–shell nanoparticles using X-ray absorption spectroscopy and the pair distribution functionen_US
dc.typeResearch Paperen_US
Appears in Collections:Research Papers

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