Stern, D.K. Efimkin, V. Galitski, Z. Fisk and J. Xia, “Radio Frequency Tunable Oscillator Device Based on SmB6 Micro-crystal”. Phys. Rev. Lett. 116(16), 166603, (2016)

We have found some application of topological Kondo insulator: as a RF oscillator device.

A good piece describing how it works:

http://jqi.umd.edu/news/oscillating-currents-point-practical-application-topological-insulators