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Epitaxial SrRuO3 thin films on (001) SrTiO3

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10 Author(s)
Chen, C.L. ; Department of Physics, Texas Center for Superconductivity, University of Houston, Houston, Texas 77204 ; Cao, Y. ; Huang, Z.J. ; Jiang, Q.D.
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Highly conductive metallic oxide thin films of SrRuO3 with single crystalline quality have been grown on (001) SrTiO3 by using pulsed laser deposition. The films have a [00l] orientation with an in-plane relationship of [110]SrRuO3 // [100]SrTiO3. They have excellent metallic behavior with room temperature resistivity of 310 μΩ cm and a residual resistance ratio of about 7 at 4.2 K, the largest reported to date. A clear ferromagnetic transition at 147 K was detected by resistivity and magnetic measurements. However, the transition becomes blurred as the density-of-point defects increases in the films following a 400 keV proton irradiation with an accumulative dose up to ∼6.0×1016 ions/cm2. © 1997 American Institute of Physics.

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Applied Physics Letters  (Volume:71 ,  Issue: 8 )