Colloidal crystals of monodisperse FePt nanoparticles grown by a three-layer technique of controlled oversaturation

Shevchenko E; Talapin D; Kornowski A; Wiekhorst F; Kotzler J; Haase M; Rogach A; Weller H

Advanced Materials, Vol.14, No.4, 287-287, 2002

DOI10.1002/1521-4095(20020219)14:4<287::AID-ADMA287>3.0.CO;2-6 Export Citation

Colloidal crystals of monodisperse FePt nanoparticles grown by a three-layer technique of controlled oversaturation

Shevchenko E, Talapin D, Kornowski A, Wiekhorst F, Kotzler J, Haase M, Rogach A, Weller H

Colloidal crystals of FePt nanocrystals have been produced by a three-layer oversaturation technique. Faceted triangular and hexagonal platelets, pyramids, and tetrahedrons have been obtained (see Figure), consisting of individual monodisperse FePt nanocrystals aligned in a 3D superlattice. Transition from superparamagnetic to ferromagnetic behavior is observed at 14 K.