Shell pressure on the core of MnO/Mn3O4 core/shell nanoparticles
authors Silva, NJO; Karmaoui, M; Amaral, VS; Puente-Orench, I; Campo, J; da Silva, I; Ibarra, A; Bustamante, R; Millan, A; Palacio, F
nationality International
journal PHYSICAL REVIEW B
keywords MAGNETIC-PROPERTIES; MNO NANOPARTICLES; PHASE-TRANSITIONS; STRAINED SILICON; NANOCRYSTALS; EXCHANGE; EMISSION; NANORODS; FEO; GPA
abstract Here we show that spontaneous oxidation of MnO nanoparticles into MnO/Mn3O4 core/shell nanoparticles has the effect of a local pressure, decreasing the MnO cell parameter and increasing strain, resulting in the increase of the MnO antiferromagnetic/paramagnetic transition temperature T-N. These effects are more severe in smaller nanoparticles.
publisher AMER PHYSICAL SOC
issn 1098-0121
year published 2013
volume 87
issue 22
digital object identifier (doi) 10.1103/PhysRevB.87.224429
web of science category Physics, Condensed Matter
subject category Physics
unique article identifier WOS:000320999800006
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journal analysis (jcr 2019):
journal impact factor 3.575
5 year journal impact factor 3.511
category normalized journal impact factor percentile 70.187
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