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Interference of Chiral Andreev Edge States

Publication ,  Journal Article
Zhao, L; Arnault, EG; Bondarev, A; Seredinski, A; Larson, T; Draelos, AW; Li, H; Watanabe, K; Taniguchi, T; Amet, F; Baranger, HU; Finkelstein, G
Published in: Nature Physics
May 18, 2020

The search for topological excitations such as Majorana fermions has spurred interest in the boundaries between distinct quan- tum states. Here, we explore an interface between two prototypical phases of electrons with conceptually different ground states: the integer quantum Hall insulator and the s-wave superconductor. We find clear signatures of hybridized electron and hole states similar to chiral Majorana fermions, which we refer to as chiral Andreev edge states (CAESs). These propagate along the interface in the direction determined by the magnetic field and their interference can turn an incoming electron into an out- going electron or hole, depending on the phase accumulated by the CAESs along their path. Our results demonstrate that these excitations can propagate and interfere over a significant length, opening future possibilities for their coherent manipulation.

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Published In

Nature Physics

DOI

ISSN

1745-2473

Publication Date

May 18, 2020

Volume

16

Start / End Page

862 / 867

Publisher

Springer Nature

Related Subject Headings

  • Fluids & Plasmas
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

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Zhao, L., Arnault, E. G., Bondarev, A., Seredinski, A., Larson, T., Draelos, A. W., … Finkelstein, G. (2020). Interference of Chiral Andreev Edge States. Nature Physics, 16, 862–867. https://doi.org/10.1038/s41567-020-0898-5
Zhao, Lingfei, Ethan G. Arnault, Alexey Bondarev, Andrew Seredinski, Trevyn Larson, Anne W. Draelos, Hengming Li, et al. “Interference of Chiral Andreev Edge States.” Nature Physics 16 (May 18, 2020): 862–67. https://doi.org/10.1038/s41567-020-0898-5.
Zhao L, Arnault EG, Bondarev A, Seredinski A, Larson T, Draelos AW, et al. Interference of Chiral Andreev Edge States. Nature Physics. 2020 May 18;16:862–7.
Zhao, Lingfei, et al. “Interference of Chiral Andreev Edge States.” Nature Physics, vol. 16, Springer Nature, May 2020, pp. 862–67. Manual, doi:10.1038/s41567-020-0898-5.
Zhao L, Arnault EG, Bondarev A, Seredinski A, Larson T, Draelos AW, Li H, Watanabe K, Taniguchi T, Amet F, Baranger HU, Finkelstein G. Interference of Chiral Andreev Edge States. Nature Physics. Springer Nature; 2020 May 18;16:862–867.

Published In

Nature Physics

DOI

ISSN

1745-2473

Publication Date

May 18, 2020

Volume

16

Start / End Page

862 / 867

Publisher

Springer Nature

Related Subject Headings

  • Fluids & Plasmas
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 02 Physical Sciences
  • 01 Mathematical Sciences