Hanbury Brown and Twiss exchange correlations in a graphene box

Teemu Elo; Zhenbing Tan; Ciprian Padurariu; Fabian Duerr; Dmitry S. Golubev; Gordey B. Lesovik; Pertti Hakonen

doi:10.1103/PhysRevB.100.235433

Hanbury Brown and Twiss exchange correlations in a graphene box

Teemu Elo^*, Zhenbing Tan, Ciprian Padurariu, Fabian Duerr, Dmitry S. Golubev, Gordey B. Lesovik, Pertti Hakonen

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

Quadratic detection in linear mesoscopic transport systems produces cross terms that can be viewed as interference signals reflecting statistical properties of charge carriers. In electronic systems these cross-term interferences arise from exchange effects due to Pauli principle. Here we demonstrate fermionic Hanbury Brown and Twiss (HBT) exchange phenomena due to indistinguishability of charge carriers in a diffusive graphene system. These exchange effects are verified using current-current cross-correlations in combination with regular shot noise (autocorrelation) experiments at microwave frequencies. Our results can be modeled using semiclassical analysis for a square-shaped metallic diffusive conductor, including contributions from contact transparency. The experimentally determined HBT exchange factor values lie between the calculated ones for coherent and hot electron transport.

Original language	English
Article number	235433
Pages (from-to)	1-9
Number of pages	9
Journal	Physical Review B
Volume	100
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevB.100.235433
Publication status	Published - 18 Dec 2019
MoE publication type	A1 Journal article-refereed

Keywords

SHOT-NOISE
SCATTERING
CONDUCTIVITY
UNIVERSALITY
INTERFERENCE
TRANSPORT

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10.1103/PhysRevB.100.235433

PhysRevB.100.235433-1Final published version, 1.06 MB

2 Finished
3 Active

EMP: European Microkelvin Platform
Hakonen, P.
01/01/2019 → 30/06/2023
Project: EU: Framework programmes funding
BOLOSO: Ultrasensitive bolometers for security applications
Tomi, M., Hakonen, P., Zeng, W., Perelshtein, M., Kamada, M., Manninen, J., Kumar, M., Will, M. & Suresh, K.
01/01/2018 → 31/12/2021
Project: Academy of Finland: Other research funding
QuDeT: Quantum devices in topological matter: carbon nanotubes, graphene, and novel superfluids
Thanniyil Sebastian, A., Kaikkonen, J., Kamada, M., Manninen, J., Tan, Z., Will, M., Todoshchenko, I., Hakonen, P., Zavyalov, V., Sergeicheva, E., Song, X., Kumar, M., Pandey, P., Haque, M., Perelshtein, M., Kirsanov, N., Tong, F., Korhonen, K., Häkkinen, P. & Ervasti, M.
05/11/2015 → 31/12/2021
Project: EU: ERC grants

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Aalto University
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OtaNano
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Cite this

@article{85d91e91aba4450fa924005b9ef43ccd,

title = "Hanbury Brown and Twiss exchange correlations in a graphene box",

abstract = "Quadratic detection in linear mesoscopic transport systems produces cross terms that can be viewed as interference signals reflecting statistical properties of charge carriers. In electronic systems these cross-term interferences arise from exchange effects due to Pauli principle. Here we demonstrate fermionic Hanbury Brown and Twiss (HBT) exchange phenomena due to indistinguishability of charge carriers in a diffusive graphene system. These exchange effects are verified using current-current cross-correlations in combination with regular shot noise (autocorrelation) experiments at microwave frequencies. Our results can be modeled using semiclassical analysis for a square-shaped metallic diffusive conductor, including contributions from contact transparency. The experimentally determined HBT exchange factor values lie between the calculated ones for coherent and hot electron transport.",

keywords = "SHOT-NOISE, SCATTERING, CONDUCTIVITY, UNIVERSALITY, INTERFERENCE, TRANSPORT",

author = "Teemu Elo and Zhenbing Tan and Ciprian Padurariu and Fabian Duerr and Golubev, {Dmitry S.} and Lesovik, {Gordey B.} and Pertti Hakonen",

note = "| openaire: EC/H2020/670743/EU//QuDeT ",

year = "2019",

month = dec,

day = "18",

doi = "10.1103/PhysRevB.100.235433",

language = "English",

volume = "100",

pages = "1--9",

journal = "Physical Review B (Condensed Matter and Materials Physics)",

issn = "2469-9950",

publisher = "American Physical Society",

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TY - JOUR

T1 - Hanbury Brown and Twiss exchange correlations in a graphene box

AU - Elo, Teemu

AU - Tan, Zhenbing

AU - Padurariu, Ciprian

AU - Duerr, Fabian

AU - Golubev, Dmitry S.

AU - Lesovik, Gordey B.

AU - Hakonen, Pertti

N1 - | openaire: EC/H2020/670743/EU//QuDeT

PY - 2019/12/18

Y1 - 2019/12/18

N2 - Quadratic detection in linear mesoscopic transport systems produces cross terms that can be viewed as interference signals reflecting statistical properties of charge carriers. In electronic systems these cross-term interferences arise from exchange effects due to Pauli principle. Here we demonstrate fermionic Hanbury Brown and Twiss (HBT) exchange phenomena due to indistinguishability of charge carriers in a diffusive graphene system. These exchange effects are verified using current-current cross-correlations in combination with regular shot noise (autocorrelation) experiments at microwave frequencies. Our results can be modeled using semiclassical analysis for a square-shaped metallic diffusive conductor, including contributions from contact transparency. The experimentally determined HBT exchange factor values lie between the calculated ones for coherent and hot electron transport.

AB - Quadratic detection in linear mesoscopic transport systems produces cross terms that can be viewed as interference signals reflecting statistical properties of charge carriers. In electronic systems these cross-term interferences arise from exchange effects due to Pauli principle. Here we demonstrate fermionic Hanbury Brown and Twiss (HBT) exchange phenomena due to indistinguishability of charge carriers in a diffusive graphene system. These exchange effects are verified using current-current cross-correlations in combination with regular shot noise (autocorrelation) experiments at microwave frequencies. Our results can be modeled using semiclassical analysis for a square-shaped metallic diffusive conductor, including contributions from contact transparency. The experimentally determined HBT exchange factor values lie between the calculated ones for coherent and hot electron transport.

KW - SHOT-NOISE

KW - SCATTERING

KW - CONDUCTIVITY

KW - UNIVERSALITY

KW - INTERFERENCE

KW - TRANSPORT

U2 - 10.1103/PhysRevB.100.235433

DO - 10.1103/PhysRevB.100.235433

M3 - Article

VL - 100

SP - 1

EP - 9

JO - Physical Review B (Condensed Matter and Materials Physics)

JF - Physical Review B (Condensed Matter and Materials Physics)

SN - 2469-9950

IS - 23

M1 - 235433

ER -

Hanbury Brown and Twiss exchange correlations in a graphene box

Abstract

Keywords

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Projects

EMP: European Microkelvin Platform

BOLOSO: Ultrasensitive bolometers for security applications

QuDeT: Quantum devices in topological matter: carbon nanotubes, graphene, and novel superfluids

Equipment

OtaNano

OtaNano – Low Temperature Laboratory

Cite this