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dc.contributorVirginia Techen_US
dc.contributor.authorKumar, Amiten_US
dc.contributor.authorKumar, J.en_US
dc.contributor.authorPriya, Shashanken_US
dc.date.accessioned2014-01-21T19:28:04Z
dc.date.available2014-01-21T19:28:04Z
dc.date.issued2012-05-01
dc.identifier.citationKumar, Ashok; Kumar, Jitendra; Priya, Shashank, "Defect and adsorbate induced ferromagnetic spin-order in magnesium oxide nanocrystallites," Appl. Phys. Lett. 100, 192404 (2012); http://dx.doi.org/10.1063/1.4712058
dc.identifier.issn0003-6951
dc.identifier.urihttp://hdl.handle.net/10919/24927
dc.description.abstractWe report the correlation between d(0) ferromagnetism, photoluminescence (PL), and adsorbed hydrogen (H-) species in magnesium oxide (MgO) nanocrystallites. Our study suggests that the oxygen vacancies, namely singly ionized anionic vacancies (F+) and dimers (F-2(2+)) induce characteristic photoluminescence and the room-temperature ferromagnetic spin-order. Nanocrystallites with low population of oxygen vacancies have revealed diamagnetic behavior. Intriguingly, on adsorption of hydrogen (H-) species in the MgO nanocrystallites, ferromagnetic behavior was either enhanced (in the case of highly oxygen deficient nanocrystallites) or begun to percolate (in the case of nanocrystallite with low population density of oxygen vacancies). (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4712058]
dc.description.sponsorshipOffice of Basic Energy Sciences, Department of Energy DE-FG02-08ER 46484
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.publisherAIP Publishing
dc.subjectCentersen_US
dc.subjectMGOen_US
dc.subjectLuminescenceen_US
dc.subjectPhysicsen_US
dc.titleDefect and adsorbate induced ferromagnetic spin-order in magnesium oxide nanocrystallites
dc.typeArticle
dc.identifier.urlhttp://scitation.aip.org/content/aip/journal/apl/100/19/10.1063/1.4712058
dc.date.accessed2014-01-10
dc.title.serialApplied Physics Letters
dc.identifier.doi10.1063/1.4712058
dc.type.dcmitypeText


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