Heteroepitaxial growth of InSb thin film on SrTiO3 (001) by pulsed laser deposition for magnetic Hall sensor application.

â...˘â€"â...¤ semiconductor compound InSb with a zinc blende structure and extremely high electron mobility was grown as a thin film on SrTiO₃ (STO)(001) substrate by pulsed laser deposition. The growth of (111) oriented InSb was observed despite a large lattice mismatch of 1.6% ([1âˆ'10]_InSb ∣∣ [010]_STO) and 17.8% ([11âˆ'2]_InSb ∣∣ [100]_STO). Electron mobility of 94 cm² V^âˆ'1s^âˆ'1 at room temperature was confirmed by Hall effect measurement and the magnetic field reversal down to 1 Oe was detected. Growth of InSb/STO (001) thin film could be a promising approach for the detection of magnetic signals from various perovskite type functional oxide materials and will find applications in future devices. [ABSTRACT FROM AUTHOR]