Arrays of semimetallic Bi nanowires have been successfully fabricated by electrodeposition. Each nanowire consists of elongated Bi grains along the wire direction. Very large positive magnetoresistance of 300% at low temperatures and 70% at room temperature with quasilinear field dependence has been observed. These features are desirable for wide-range field sensing applications. © 1998 American Institute of Physics.

Shubnikov-de Haas oscillations have been observed in Bi thin films fabricated by electrodeposition. The observed dominant oscillation periods of 0.17, 0.08, and (Formula presented) with the magnetic field along the trigonal, binary, and bisectrix axes of Bi, respectively, are in good agreement with those in bulk Bi single crystals. © 2000 The American Physical Society.