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Epitaxial growth and transport properties of Nb-doped SrTiO$_{3}$ thin films

K. S. Takahashi·D. Jaccard·K. Shibuya·T. Ohnishi·M. Lippmaa·J. -M. Triscone
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Abstract

Nb-doped SrTiO$_{3}$ epitaxial thin films have been prepared on (001) SrTiO$_{3}$ substrates using pulsed laser deposition. A high substrate temperature ($>1000^{\circ}{C}$) was found to be necessary to achieve 2-dimensional growth. Atomic force microscopy reveals atomically flat surfaces with 3.9 Å$ $ steps. The films show a metallic behavior, residual resistivity ratios between 10 and 100, and low residual resistivity of the order of 10$^{-4}$$Ω$cm. At 0.3 K, a sharp superconducting transition, reaching zero resistance, is observed.

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K. S. Takahashi, D. Jaccard, K. Shibuya, T. Ohnishi, M. Lippmaa, J. -M. Triscone. 2005-08-02. Epitaxial growth and transport properties of Nb-doped SrTiO$_{3}$ thin films. https://doi.org/10.1117/12.616888

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