Fig. 5From: Free-standing millimetre-long Bi2Te3 sub-micron belts catalyzed by TiO2 nanoparticlesElectrical characterization of a long sub-micron belt. The measured temperature-dependent electrical conductivity σ(T) of two belts from the same batch as function of the bath temperature T. The inset shows a microscope image of the contacted B2 allowing for measurements in four-point configuration. Yellow: Au, purple: SiO2, green: Bi2Te3 beltBack to article page