Bi_(0.85)La_(0.15)FeO_(3)(BLFO)nanotubes with an average diameter of about 200 nm and wall thickness of about 20 nm are fabricated by solgel alumina template technique,and their room-temperature multiferroic properties are studied.Piezoelectricity and ferroelectricity in the BLFO nanotubes are revealed by piezoresponse force microscopy study of individual nanotube.Doping the BiFeO_(3)nanotubes with La reduces the crystallization temperature and results in a reduced lose of Bi and therefore improved multiferroic properties of the nanotubes.Enhanced weak ferromagnetism is also observed,and it is attributed to the nano-crystalline structure of the nanotubes.
