Shape of Cooper pairs in a normal-metal/superconductor junction

The Bose–Einstein condensation and appearance of superfluidity and superconductivity are introduced from basic phenomena. A systematic theory based on the asymmetric expansion of chapter 11 is shown to correct the T-matrix from unphysical multiple-scattering events. The resulting generalised Soven scheme provides the Beliaev equations for Boson’s and the Nambu–Gorkov equations for fermions without the usage of anomalous and non-conserving propagators. This systematic theory allows calculating the fluctuations above and below the critical parameters. Gap equations and Bogoliubov–DeGennes equations are derived from this theory. Interacting Bose systems with finite temperatures are discussed with successively better approximations ranging from Bogoliubov and Popov up to corrected T-matrices. For superconductivity, the asymmetric theory leading to the corrected T-matrix allows for establishing the stability of the condensate and decides correctly about the pair-breaking mechanisms in contrast to conventional approaches. The relation between the correlated density from nonlocal kinetic theory and the density of Cooper pairs is shown.

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Interaction energy between two identical atoms chemisorbed on a normal metal

Surface Science ◽

10.1016/0039-6028(78)90383-7 ◽

1978 ◽

Vol 72 (1) ◽

pp. 125-139 ◽

Cited By ~ 22

Author(s):

J.C. Le Bosse ◽

J. Lopez ◽

J. Rousseau-Violet

Keyword(s):

Interaction Energy ◽

Normal Metal

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Magnetic field dependence of the critical current anisotropy in normal metal‐YBa2Cu3O7−δthin‐film bilayers

Applied Physics Letters ◽

10.1063/1.104365 ◽

1991 ◽

Vol 58 (11) ◽

pp. 1205-1207 ◽

Cited By ~ 6

Author(s):

R. H. Ono ◽

L. F. Goodrich ◽

J. A. Beall ◽

M. E. Johansson ◽

C. D. Reintsema

Keyword(s):

Magnetic Field ◽

Critical Current ◽

Field Dependence ◽

Magnetic Field Dependence ◽

Normal Metal

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Magnetic Field Sensor Based on a Single Josephson Junction With a Multilayer Ferromagnet/Normal Metal Barrier

IEEE Transactions on Applied Superconductivity ◽

10.1109/tasc.2021.3056039 ◽

2021 ◽

Vol 31 (5) ◽

pp. 1-5

Author(s):

Ivan P. Nevirkovets ◽

Mikhail A. Belogolovskii ◽

Oleg A. Mukhanov ◽

John B. Ketterson

Keyword(s):

Magnetic Field ◽

Josephson Junction ◽

Normal Metal ◽

Magnetic Field Sensor ◽

Field Sensor ◽

Metal Barrier

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Imaging and controlling vortex dynamics in mesoscopic superconductor–normal-metal–superconductor arrays

Physical Review B ◽

10.1103/physrevb.103.224526 ◽

2021 ◽

Vol 103 (22) ◽

Author(s):

Tyler R. Naibert ◽

Hryhoriy Polshyn ◽

Rita Garrido-Menacho ◽

Malcolm Durkin ◽

Brian Wolin ◽

...

Keyword(s):

Vortex Dynamics ◽

Normal Metal ◽

Mesoscopic Superconductor

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Thermoelectric current in a graphene Cooper pair splitter

Nature Communications ◽

10.1038/s41467-020-20476-7 ◽

2021 ◽

Vol 12 (1) ◽

Author(s):

Z. B. Tan ◽

A. Laitinen ◽

N. S. Kirsanov ◽

A. Galda ◽

V. M. Vinokur ◽

...

Keyword(s):

Cooper Pair ◽

Theoretical Description ◽

Seebeck Effect ◽

Normal Metal ◽

Electric Voltage ◽

Power Generators ◽

Metal Structures ◽

Fundamental Phenomenon ◽

Non Local ◽

Cooper Pair Splitting

AbstractGeneration of electric voltage in a conductor by applying a temperature gradient is a fundamental phenomenon called the Seebeck effect. This effect and its inverse is widely exploited in diverse applications ranging from thermoelectric power generators to temperature sensing. Recently, a possibility of thermoelectricity arising from the interplay of the non-local Cooper pair splitting and the elastic co-tunneling in the hybrid normal metal-superconductor-normal metal structures was predicted. Here, we report the observation of the non-local Seebeck effect in a graphene-based Cooper pair splitting device comprising two quantum dots connected to an aluminum superconductor and present a theoretical description of this phenomenon. The observed non-local Seebeck effect offers an efficient tool for producing entangled electrons.

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