Negative magnetoresistance in Andreev interferometers

Belzig, W , Shaikhaidarov, R , Petrashov, Victor and Nazarov, Y V

(2002)

Belzig, W , Shaikhaidarov, R , Petrashov, Victor and Nazarov, Y V (2002) Negative magnetoresistance in Andreev interferometers. Physical Review B, 66 (22).

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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.

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This is a Submitted version
This version's date is: 1/12/2002
This item is not peer reviewed

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https://repository.royalholloway.ac.uk/items/d0851471-4e47-61c1-c858-45c1fce33e65/6/

Item TypeJournal Article
TitleNegative magnetoresistance in Andreev interferometers
AuthorsBelzig, W
Shaikhaidarov, R
Petrashov, Victor
Nazarov, Y V
Uncontrolled KeywordsPHASE-CONTROLLED CONDUCTANCE, SUPERCONDUCTING MIRRORS, MESOSCOPIC STRUCTURES, COHERENT CONDUCTANCE, TRANSPORT, REFLECTION
DepartmentsFaculty of Science\Physics
Research Groups and Centres\Physics\Low Temperature Physics

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doihttp://dx.doi.org/10.1103/PhysRevB.66.220505

Deposited by Research Information System (atira) on 03-Jul-2014 in Royal Holloway Research Online.Last modified on 03-Jul-2014

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