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RESEARCH PRODUCT
Raman scattering in nanosized nickel oxide NiO
Jānis GrabisNina Mironova-ulmaneMartti PärsAlexei KuzminIlmo SildosInts ŠTeinssubject
HistoryPhase transitionMaterials scienceNickel oxideMagnonNon-blocking I/OInorganic chemistryAnalytical chemistryComputer Science ApplicationsEducationCondensed Matter::Materials ScienceParamagnetismsymbols.namesakesymbolsAntiferromagnetismCondensed Matter::Strongly Correlated ElectronsCrystalliteRaman scatteringdescription
Magnetic ordering in nanosized (100 and 1500 nm) nickel oxide NiO powders, prepared by the plasma synthesis method, was studied using Raman scattering spectroscopy in a wide range of temperatures from 10 to 300 K. It was observed that the intensity of two- magnon band decreases rapidly for smaller crystallites size. This effect is attributed to a decrease of antiferromagnetic spin correlations and leads to the antiferromagnetic-to- paramagnetic phase transition .
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-12-01 | Journal of Physics: Conference Series |