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Updated: May 18, 2026

Scanning-probe Single-electron Capacitance Spectroscopy
Published on: July 30, 2013
Limit cycle and anomalous capacitance in the Kondo insulator SmB6
1Department of Physics and Astronomy, University of California, Irvine, California 92697, USA.
Abstract:
We report a frequency coding limit cycle and anomalous capacitance in the Kondo insulator SmB6 at low temperatures where the insulating gap becomes fully opened. The limit cycle appears to be associated with local activity and autocatalytic temporal pattern formation, as occurs in biological systems. The measured anomalous capacitance may indicate surface and bulk separation, suggesting the formation of a surface conducting state. The biological analogy suggests lossless information transport and complex information coding, and the surface state with a superconductor would provide a possible venue for quantum computing resources without decoherence.
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