Counting statistics of single electron transport in bilayer graphene quantum dots

被引：11

作者：

Garreis, Rebekka ^{[1
]}

Gerber, Jonas Daniel ^{[1
]}

Stara, Veronika ^{[2
]}

Tong, Chuyao ^{[1
]}

Gold, Carolin ^{[1
,3
]}

Roosli, Marc ^{[1
]}

Watanabe, Kenji ^{[4
]}

Taniguchi, Takashi ^{[4
]}

Ensslin, Klaus ^{[1
]}

Ihn, Thomas ^{[1
]}

Kurzmann, Annika ^{[1
,5
]}

机构：

[1] Swiss Fed Inst Technol, Solid State Phys Lab, CH-8093 Zurich, Switzerland

[2] Brno Univ Technol, Cent European Inst Technol, Brno 61200, Czech Republic

[3] Columbia Univ, Dept Phys & Astron, New York, NY 10027 USA

[4] Natl Inst Mat Sci, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan

[5] Rhein Westfal TH Aachen, Inst Phys 2, D-52074 Aachen, Germany

来源：

PHYSICAL REVIEW RESEARCH | 2023年 / 5卷 / 01期

基金：

瑞士国家科学基金会; 欧盟地平线“2020”;

关键词：

CONTACTS; SPIN;

D O I：

10.1103/PhysRevResearch.5.013042

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We measure telegraph noise of current fluctuations in an electrostatically defined quantum dot in bilayer graphene by real-time detection of single electron tunneling with a capacitively coupled neighboring quantum dot. Suppression of the second and third cumulant (related to shot noise) in a tunable graphene quantum dot is demonstrated experimentally. With this method we demonstrate the ability to measure very low current and noise levels. Furthermore, we use this method to investigate the first spin excited state, an essential prerequisite to measure spin relaxation.

引用

页数：7

共 42 条

[11] Coupled Quantum Dots in Bilayer Graphene [J].

Eich, Marius ;

Pisoni, Riccardo ;

Pally, Alessia ;

Overweg, Hiske ;

Kurzmann, Annika ;

Lee, Yongjin ;

Rickhaus, Peter ;

Watanabe, Kenji ;

Taniguchi, Takashi ;

Ensslin, Klaus ;

Ihn, Thomas .

NANO LETTERS, 2018, 18 (08) :5042-5048

[12] Excited-state spectroscopy on a nearly closed quantum dot via charge detection [J].

Elzerman, JM ;

Hanson, R ;

van Beveren, LHW ;

Vandersypen, LMK ;

Kouwenhoven, LP .

APPLIED PHYSICS LETTERS, 2004, 84 (23) :4617-4619

[13]

Elzerman JM, 2004, NATURE, V430, P431, DOI [10.1038/nature02693, 10.1039/nature02693]

[14] Universal oscillations in counting statistics [J].

Flindt, C. ;

Fricke, C. ;

Hohls, F. ;

Novotny, T. ;

Netocny, K. ;

Brandes, T. ;

Haug, R. J. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2009, 106 (25) :10116-10119

[15] Few electron double quantum dots in InAs/InP nanowire heterostructures [J].

Fuhrer, Andreas ;

Froberg, Linus E. ;

Pedersen, Jonas Nyvold ;

Larsson, Magnus W. ;

Wacker, Andreas ;

Pistol, Mats-Erik ;

Samuelson, Lars .

NANO LETTERS, 2007, 7 (02) :243-246

[16] Single-Shot Spin Readout in Graphene Quantum Dots [J].

Gaechter, Lisa Maria ;

Garreis, Rebekka ;

Gerber, Jonas Daniel ;

Ruckriegel, Max Josef ;

Tong, Chuyao ;

Kratochwil, Benedikt ;

de Vries, Folkert Kornelis ;

Kurzmann, Annika ;

Watanabe, Kenji ;

Taniguchi, Takashi ;

Ihn, Thomas ;

Ensslin, Klaus ;

Huang, Wister Wei .

PRX QUANTUM, 2022, 3 (02)

[17] Shell Filling and Trigonal Warping in Graphene Quantum Dots [J].

Garreis, R. ;

Knothe, A. ;

Tong, C. ;

Eich, M. ;

Gold, C. ;

Watanabe, K. ;

Taniguchi, T. ;

Fal'ko, V ;

Ihn, T. ;

Ensslin, K. ;

Kurzmann, A. .

PHYSICAL REVIEW LETTERS, 2021, 126 (14)

[18] Time-resolved charge detection in graphene quantum dots [J].

Guettinger, J. ;

Seif, J. ;

Stampfer, C. ;

Capelli, A. ;

Ensslin, K. ;

Ihn, T. .

PHYSICAL REVIEW B, 2011, 83 (16)

[19] Counting statistics and super-Poissonian noise in a quantum dot: Time-resolved measurements of electron transport [J].

Gustavsson, S. ;

Leturcq, R. ;

Simovic, B. ;

Schleser, R. ;

Studerus, P. ;

Ihn, T. ;

Ensslin, K. ;

Driscoll, D. C. ;

Gossard, A. C. .

PHYSICAL REVIEW B, 2006, 74 (19)

[20] Counting statistics of single electron transport in a quantum dot [J].

Gustavsson, S ;

Leturcq, R ;

Simovic, B ;

Schleser, R ;

Ihn, T ;

Studerus, P ;

Ensslin, K ;

Driscoll, DC ;

Gossard, AC .

PHYSICAL REVIEW LETTERS, 2006, 96 (07)

← 1 2 3 4 5 →