Publikation:

Quantum transport signatures of chiral edge states in Sr2RuO4

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Tiwari_245564.pdf
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2014

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Tiwari, Rakesh P.
Sigrist, Manfred
Bruder, Christoph

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http://nbn-resolving.de/urn:nbn:de:bsz:352-245564
DOI (zitierfähiger Link)
https://doi.org/10.1103/PhysRevB.89.184512
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http://arxiv.org/abs/1308.4850v1

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Published

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Physical Review B. 2014, 89(18). ISSN 1098-0121. Available under: doi: 10.1103/PhysRevB.89.184512

Zusammenfassung

We investigate transport properties of a double quantum dot based Cooper pair splitter, where the superconducting lead consists of Sr2RuO4. The proposed device can be used to explore the symmetry of the superconducting order parameter in Sr2RuO4 by testing the presence of gapless chiral edge states, which are predicted to exist if the bulk superconductor is described by a chiral p–wave state. The odd orbital symmetry of the bulk order parameter ensures that we can realize a regime where the electrons tunneling into the double dot system come from the chiral edge states and thereby leave their signature in the conductance. The proposed Cooper pair splitter has the potential to probe order parameters in unconventional superconductors.

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530 Physik

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ISO 690TIWARI, Rakesh P., Wolfgang BELZIG, Manfred SIGRIST, Christoph BRUDER, 2014. Quantum transport signatures of chiral edge states in Sr2RuO4. In: Physical Review B. 2014, 89(18). ISSN 1098-0121. Available under: doi: 10.1103/PhysRevB.89.184512
BibTex
@unpublished{Tiwari2014Quant-24556,
  year={2014},
  doi={10.1103/PhysRevB.89.184512},
  title={Quantum transport signatures of chiral edge states in Sr<sub>2</sub>RuO<sub>4</sub>},
  author={Tiwari, Rakesh P. and Belzig, Wolfgang and Sigrist, Manfred and Bruder, Christoph}
}
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    <dcterms:abstract xml:lang="eng">We investigate transport properties of a double quantum dot based Cooper pair splitter, where the superconducting lead consists of Sr&lt;sub&gt;2&lt;/sub&gt;RuO&lt;sub&gt;4&lt;/sub&gt;. The proposed device can be used to explore the symmetry of the superconducting order parameter in Sr&lt;sub&gt;2&lt;/sub&gt;RuO&lt;sub&gt;4&lt;/sub&gt; by testing the presence of gapless chiral edge states, which are predicted to exist if the bulk superconductor is described by a chiral p–wave state. The odd orbital symmetry of the bulk order parameter ensures that we can realize a regime where the electrons tunneling into the double dot system come from the chiral edge states and thereby leave their signature in the conductance. The proposed Cooper pair splitter has the potential to probe order parameters in unconventional superconductors.</dcterms:abstract>
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