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In-situ measurement of self-heating in intrinsic tunnelling spectroscopy

V. M. Krasnov·M. Sandberg·I. Zogaj
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Abstract

Using advanced sample engineering we performed simultaneous measurement of intrinsic (interlayer) tunnelling characteristics and in-situ monitoring of temperature in small Bi-2212 mesa structures. Together with a systematic study of size-dependence of intrinsic tunnelling, this allowed an unambiguous discrimination between artifacts of self-heating and gaps in electronic spectrum of Bi-2212 High-$T_c$ superconductor. Finally, we analyze the reliability of intrinsic tunnelling spectroscopy and discuss how it can be improved.

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V. M. Krasnov, M. Sandberg, I. Zogaj. 2006-04-10. In-situ measurement of self-heating in intrinsic tunnelling spectroscopy. https://doi.org/10.1103/physrevlett.94.077003

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