TY - JOUR
T1 - Controlled growth and magnetic property of fept nanostructure
T2 - cuboctahedron, octapod, truncated cube, and cube
AU - Chou, Shang Wei
AU - Zhu, Chun Ling
AU - Neeleshwar, Sonnathi
AU - Chen, G. Lung
AU - Chen, Yang Yuan
AU - Chen, Chia Chun
PY - 2009/10/27
Y1 - 2009/10/27
N2 - The strategy for shape control of alloy FePt nanocrystal was studied systematically. By the careful adjustments of reaction parameters in a solution reaction, surfactant-facet bindings on the growth seed were controlled delicately. FePt octapod, cuboctahedron, truncated cube, and nanocube were successfully prepared from, cuboctahedral seed and examined by high-resolution transmission electron microscopy. The formations of FePt nanostructures were mainly attributed to the differences in the growth rate between the {111} and {100} planes of cuboctahedral seeds. The magnetic measurements showed, that the order of volume, V(nanocube) > V(octapod) > V (cuboctahedron) obviously reflected the order of saturated magnetization (Ms), Ms (nanocube) > M s (cuboctahedron) > Ms (cuboctahedron). Furthermore, the measurements of octapod exhibited the highest coercivity and blocking temperature because of its higher surface to volume ratio and more structural facets
AB - The strategy for shape control of alloy FePt nanocrystal was studied systematically. By the careful adjustments of reaction parameters in a solution reaction, surfactant-facet bindings on the growth seed were controlled delicately. FePt octapod, cuboctahedron, truncated cube, and nanocube were successfully prepared from, cuboctahedral seed and examined by high-resolution transmission electron microscopy. The formations of FePt nanostructures were mainly attributed to the differences in the growth rate between the {111} and {100} planes of cuboctahedral seeds. The magnetic measurements showed, that the order of volume, V(nanocube) > V(octapod) > V (cuboctahedron) obviously reflected the order of saturated magnetization (Ms), Ms (nanocube) > M s (cuboctahedron) > Ms (cuboctahedron). Furthermore, the measurements of octapod exhibited the highest coercivity and blocking temperature because of its higher surface to volume ratio and more structural facets
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U2 - 10.1021/cm902199p
DO - 10.1021/cm902199p
M3 - Article
AN - SCOPUS:70350627289
SN - 0897-4756
VL - 21
SP - 4955
EP - 4961
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 20
ER -