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Element 1: Lanthanum
Element 2: Barium
Element 3: Manganese
Element 4: Oxygen
Structure: Crystalline
Origin: Chemical Synthesis
PPMD: 50 nm
Added to NIL: 9/16/2005 9:19:00 AM
Contributor: Hongkun  Park ,   Harvard University

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Research Abstract:
We report a hydrothermal synthesis of single-crystalline nanocubes composed of lanthanum barium maganite with three different doping levels (x = 0.3, 0.5, and 0.6). The synthesis yields clearly faceted nanocubes with a pseudo-cubic pervoskite structure. Typical nanocubes have sizes ranging between 50 and 100 nm irrespective of doping level. Magnetic measurements performed on nanocube ensembles show that the magnetic properties depend on the doping level. The ability of synthesize nanoscale manganites of a desired doping level should enable detailed investigations of the size-dependent evolution of magnetism, colossal magnetoresistance, and nanoscale phase separation. less info

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Related Publications:
Single-Crystalline Barium Titanate Nanowires," Jeffrey J. Urban, Jonathan, E. Spanier, Lian Ouyang, Wan Soo Yun, and Hongkun Park, Adv. Mater. 15, 423-426 (2003) [ view article ] "Ferroelectric Nanowires," Jonathan E. Spanier, Jeffrey J. Urban, Lian Ouyang, Wan Soo Yun, and Hongkun Park, in Nanowires and Nanobelts of Functional Materials Vol. II, Z.L. Wang (Ed.) 83-92 (Kluwer Academic Publishers, 2003). "Kondo resonance in a single-molecule transistor," Wenjie Liang, Matthew P. Shores, Marc Bockrath, Jeffrey R. Long and Hongkun Park, Nature 417, 725-729 (2002). [ view article ] [ News and Views ] [ C&E news story ] Ferroelectric properties of individual barium titanate nanowires investigated by scanned probe microscopy," Wan Soo Yun, Jeffrey J. Urban, Qian Gu and Hongkun Park, Nano Lett. 2, 447-450 (2002). [ view article ] [ C&E news story ]  less info
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