STM/STS study of superconducting diamond

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Abstract

We present a scanning tunneling microscopy/spectroscopy (STM/STS) study of synthetic polycrystalline boron-doped diamond in the temperature range 0.5-4.3 K. At 4.3 K the sample-surface was very non-uniform and tunneling I (V) spectra were typical for p-type semiconductors. After cooling below the superconducting transition temperature, we detected and measured the superconducting gap of diamonds. At temperatures around 0.5 K the energy gap was around 0.8 and 1 mV (for two different samples). © 2006 NIMS and Elsevier Ltd.

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Troyanovskiy, A., Nishizaki, T., & Ekimov, E. (2006). STM/STS study of superconducting diamond. Science and Technology of Advanced Materials, 7(SUPPL. 1), S27–S30. https://doi.org/10.1016/j.stam.2006.03.004

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