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The DOI matches its Crossref record; 24 of the 24 references it cites were found in a registry or an index.

Fractional ac Josephson effect in p- and d-wave superconductors

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Kwon, H.-J., Sengupta, K., Yakovenko, V. M.·2003·The European Physical Journal B - Condensed Matter

Abstract

For certain orientations of Josephson junctions between two px-wave or two d-wave superconductors, the subgap Andreev bound states produce a $4\pi$-periodic relation between the Josephson current I and the phase difference $\phi$: $I\propto\sin(\phi/2)$. Consequently, the ac Josephson current has the fractional frequency $eV/\hbar$, where V is the dc voltage. In the tunneling limit, the Josephson current is proportional to the first power (not square) of the electron tunneling amplitude. Thus, the Josephson current between unconventional superconductors is carried by single electrons, rather than by Cooper pairs. The fractional ac Josephson effect can be observed experimentally by measuring frequency spectrum of microwave radiation from the junction. We also study junctions between singlet s-wave and triplet px-wave, as well as between chiral $p_x\pm ip_y$-wave superconductors.

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Metadata

Authors
Kwon, H.-J., Sengupta, K., & Yakovenko, V. M.
Venue
The European Physical Journal B - Condensed Matter
Published
2003-02-01
Volume
37
Issue
3
Pages
349-361
ISSN
  • 1434-6028 (ISSN-L)
  • 1434-6036
OpenAlex
W1985552732
Cited by
364
References
24
FWCI
1.01
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Fractional ac Josephson effect in p- and d-wave superconductors. https://app.cochat.ai/papers/10.1140/epjb/e2004-00066-4
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Kwon, H.-J., Sengupta, K., & Yakovenko, V. M. (2003). Fractional ac Josephson effect in p- and d-wave superconductors. The European Physical Journal B - Condensed Matter. https://doi.org/10.1140/epjb/e2004-00066-4

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