FACW_PHAS_2013_10773118_Kaur_Dai_Bowden_Engelhard_Wu_Tang_Qiang.pdf (1.07 MB)
Magnetic interaction reversal in watermelon nanostructured Cr-doped Fe nanoclusters
journal contribution
posted on 2021-11-15, 21:35 authored by Maninder Kaur, Qilin Dai, Mark Bowden, Mark Engelhard, Yaqiao Wu, Jinke Tang, You QiangCr-doped core-shell Fe/Fe-oxide nanoclusters (NCs) were synthesized at varied atomic percentages of Cr from 0 at.% to 8 at.%. The low concentrations of Cr (<10 at.%) were selected in order to inhibit the complete conversion of the Fe-oxide shell to Cr2O3 and the Fe core to FeCr alloy. The magnetic interaction in Fe/Fe-oxide NCs (~25 nm) can be controlled by antiferromagnetic Cr-dopant. We report the origin of σFeCr phase at very low Cr concentration (2 at.%) unlike in previous studies, and the interaction reversal from dipolar to exchange interaction in watermelon-like Cr-doped core-shell NCs.
History
ISO
engLanguage
EnglishPublisher
University of Wyoming. LibrariesJournal title
APPLIED PHYSICS LETTERSCollection
Faculty Publications - Physics and AstronomyDepartment
- Library Sciences - LIBS