Comment on ``Unified Formalism of Andreev Reflection at a Ferromagnet/Superconductor Interface''

Matthias Eschrig; Alexander A.  Golubov; Igor I. Mazin; Boris Nadgorny; Yukio Tanaka; Oriol T. Valls; Igor Zutic

doi:10.1103/PhysRevLett.111.139703

Comment on ``Unified Formalism of Andreev Reflection at a Ferromagnet/Superconductor Interface''

Matthias Eschrig, Alexander A. Golubov, Igor I. Mazin, Boris Nadgorny, Yukio Tanaka, Oriol T. Valls, Igor Zutic

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Abstract

Recently, a ‘‘unified’’ Andreev reflection (AR) formalism, claimed to be ‘‘the most general to date,’’ was suggested by Chen et al. Here, we show that while there are numerous works correctly solving the problem formulated in work by Chen et al. for arbitrary spin polarization P, Chen et al. fail to correctly incorporate P≠0 effects and is incompatible with basic physical laws.

Original language	English
Article number	139703
Journal	Physical Review Letters
Volume	111
Issue number	139703
DOIs	https://doi.org/10.1103/PhysRevLett.111.139703
Publication status	Published - 24 Sept 2013

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10.1103/PhysRevLett.111.139703

PhysRevLett.111.139703Final published version, 56.6 KB
1301.3511v1Accepted author manuscript, 81.7 KB

Generation, Imaging and Control of Novel Coherent Electronic States in Artificial Ferromagnetic-Superconducting Hybrid Metamaterials and Devices
Eschrig, M. (PI)
Eng & Phys Sci Res Council EPSRC
1/03/12 → 31/08/16
Project: Research

Cite this

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title = "Comment on ``Unified Formalism of Andreev Reflection at a Ferromagnet/Superconductor Interface''",

abstract = "Recently, a {\textquoteleft}{\textquoteleft}unified{\textquoteright}{\textquoteright} Andreev reflection (AR) formalism, claimed to be {\textquoteleft}{\textquoteleft}the most general to date,{\textquoteright}{\textquoteright} was suggested by Chen et al. Here, we show that while there are numerous works correctly solving the problem formulated in work by Chen et al. for arbitrary spin polarization P, Chen et al. fail to correctly incorporate P≠0 effects and is incompatible with basic physical laws.",

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AU - Eschrig, Matthias

AU - Golubov, Alexander A.

AU - Mazin, Igor I.

AU - Nadgorny, Boris

AU - Tanaka, Yukio

AU - Valls, Oriol T.

AU - Zutic, Igor

PY - 2013/9/24

Y1 - 2013/9/24

N2 - Recently, a ‘‘unified’’ Andreev reflection (AR) formalism, claimed to be ‘‘the most general to date,’’ was suggested by Chen et al. Here, we show that while there are numerous works correctly solving the problem formulated in work by Chen et al. for arbitrary spin polarization P, Chen et al. fail to correctly incorporate P≠0 effects and is incompatible with basic physical laws.

AB - Recently, a ‘‘unified’’ Andreev reflection (AR) formalism, claimed to be ‘‘the most general to date,’’ was suggested by Chen et al. Here, we show that while there are numerous works correctly solving the problem formulated in work by Chen et al. for arbitrary spin polarization P, Chen et al. fail to correctly incorporate P≠0 effects and is incompatible with basic physical laws.

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DO - 10.1103/PhysRevLett.111.139703

M3 - Comment/debate

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JO - Physical Review Letters

JF - Physical Review Letters

IS - 139703

M1 - 139703

ER -

Comment on ``Unified Formalism of Andreev Reflection at a Ferromagnet/Superconductor Interface''

Abstract

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Generation, Imaging and Control of Novel Coherent Electronic States in Artificial Ferromagnetic-Superconducting Hybrid Metamaterials and Devices

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