Detecting Helical Andreev Edge States by Shot-Noise Measurements
E. S. Zhitlukhina$^{1,2}$, Paul Seidel$^{3}$
$^{1}$Donetsk Institute for Physics and Engineering Named after O. O. Galkin, NAS of Ukraine, 46 Nauky Ave., UA-03028 Kyiv, Ukraine
$^{2}$Vasyl’ Stus Donetsk National University, 21 600-richchya Str., UA-21021 Vinnytsia, Ukraine
$^{3}$Institute of Solid State Physics, Friedrich Schiller University Jena, 3 Helmholtzweg, DE-07743 Jena, Germany
Received: 08.12.2021. Download: PDF
It has been theoretically argued that a combination of two electronic techniques, measurements of conductivity and shot noise spectra, can be an effective method for detecting helical Andreev edge states in quantum coherent conductors. To implement this methodology in practice, we propose an interferometric phase-sensitive configuration consisting of two independent scanning probe tips, normal and superconducting, and show that the corresponding edge current is strongly dependent on the applied magnetic field.
Key words: helical Andreev edge currents, two-probe scanning setup, superconducting tip, electronic shot-noise spectra.
URL: https://mfint.imp.kiev.ua/en/abstract/v44/i03/0289.html
DOI: https://doi.org/10.15407/mfint.44.03.0289
PACS: 68.47.De, 73.63.-b, 73.63.Rt, 74.45.+c
Citation: E. S. Zhitlukhina and Paul Seidel, Detecting Helical Andreev Edge States by Shot-Noise Measurements, Metallofiz. Noveishie Tekhnol., 44, No. 3: 289—296 (2022)
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