Negative magnetoresistance in Andreev interferometers

Belzig, Wolfgang; Shaikhaidarov, Rais; Petrashov, Victor V.; Nazarov, Yuli V.

Negative magnetoresistance in Andreev interferometers

Files

Negative_magnetoresistance_in_Andreev_interferometers.pdf(268.47 KB)

Date

2002

Authors

Belzig, Wolfgang

Shaikhaidarov, Rais

Petrashov, Victor V.

Nazarov, Yuli V.

Publication type

Journal article

Published in

Physical Review B ; 66 (2002). - 220505

Abstract

We consider transport in a diffusive cross-shaped Andreev interferometer geometry, both theoretically and experimentally. A strong and unexpected modulation of the conductance with the superconducting phase is found. In particular, a reversed resistance vs phase difference is predicted, where the resistance is decreased by a phase gradient. A comparison of our quasiclassical calculation with experimental data shows quantitative agreement if we account for diamagnetic screening.

Subject (DDC)

530 Physics

Cite This

ISO 690

BELZIG, Wolfgang, Rais SHAIKHAIDAROV, Victor V. PETRASHOV, Yuli V. NAZAROV, 2002. Negative magnetoresistance in Andreev interferometers. In: Physical Review B. 66, 220505. Available under: doi: 10.1103/PhysRevB.66.220505

BibTex

@article{Belzig2002Negat-5174,
  year={2002},
  doi={10.1103/PhysRevB.66.220505},
  title={Negative magnetoresistance in Andreev interferometers},
  volume={66},
  journal={Physical Review B},
  author={Belzig, Wolfgang and Shaikhaidarov, Rais and Petrashov, Victor V. and Nazarov, Yuli V.},
  note={Article Number: 220505}
}

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