Abstract
Vacuum-tunnelling spectroscopy on superconducting heavy-fermion compounds should be a suitable method to gain information on the superconducting order parameter. We constructed a scanning-tunnelling microscope for the use in a dilution refrigerator. Its miniaturised design provides good thermal coupling of the sample and excellent mechanical stability, yielding atomic resolution. We present topographic and spectroscopic results on graphite (HOPG), as well as on classical and heavy-fermion superconductors.
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Work partially supported by the DFG/SFB 252 and by the BMBF Grant No. 13N6608.
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Goschke, R.A., Gloos, K., Geibel, C. et al. Vacuum-tunnelling spectroscopy on heavy-fermion compounds using a lowtemperture tunnelling microscope. Czech J Phys 46 (Suppl 2), 797–798 (1996). https://doi.org/10.1007/BF02583706
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DOI: https://doi.org/10.1007/BF02583706