Chinese Acad Sci, Ctr Condensed Matter Phys, Inst Phys, Grp A05, Beijing 100080, Peoples R China
; Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Anal Tech, Beijing 100039, Peoples R China
; Chinese Acad Sci, Supercond Lab, Inst Phys, Beijing 100080, Peoples R China
Branching structures in nanometer level are of great importance in developing nanoscale science and functional electrical devices. In this letter, multidimensional magnesium oxide structures with cone-shaped branching have been mass-produced using a simple chemical vapor deposition method. The dominant structures in the product include two-dimensional ' + ', 'T', or 'Gamma' assemblies, and three-dimensional complex configurations. The results presented here enrich the nanoscale community with new basic materials for the fabrication of functional electrical and chemical sensing devices. (C) 2004 Elsevier Ltd. All rights reserved.