TY - JOUR
T1 - The origin of different magnetic properties in nanosized Ca 0.82La0.18MnO3
T2 - Wires versus particles
AU - Wang, Yang
AU - Fan, Hong Jin
PY - 2011/4/4
Y1 - 2011/4/4
N2 - A comparative investigation has been conducted on the nanowires and nanoparticles (both in the size range of 20-35 nm) of Ca0.82La 0.18MnO3, finding that the nanowires have similar magnetic properties to the bulk, whereas the nanoparticles behave evidently different. In the nanoparticles, charge ordering and antiferromagnetic phase disappear; instead, a ferromagnetic transition is observed. Analysis of the crystal structure indicates that, for nanosized manganite systems, whether charge ordering is suppressed and ferromagnetism is developed as the size scales down depends on the level of intrinsic structural distortions; nanodimensional effect or surface effect is not determinant.
AB - A comparative investigation has been conducted on the nanowires and nanoparticles (both in the size range of 20-35 nm) of Ca0.82La 0.18MnO3, finding that the nanowires have similar magnetic properties to the bulk, whereas the nanoparticles behave evidently different. In the nanoparticles, charge ordering and antiferromagnetic phase disappear; instead, a ferromagnetic transition is observed. Analysis of the crystal structure indicates that, for nanosized manganite systems, whether charge ordering is suppressed and ferromagnetism is developed as the size scales down depends on the level of intrinsic structural distortions; nanodimensional effect or surface effect is not determinant.
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U2 - 10.1063/1.3575571
DO - 10.1063/1.3575571
M3 - Article
AN - SCOPUS:79954484420
SN - 0003-6951
VL - 98
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 14
M1 - 142502
ER -