Giant Magnetoconductance Oscillations in Hybrid Superconductor-Semiconductor Core/Shell Nanowire Devices

被引：19

作者：

Guel, Oe ^{[1
,2
]}

Guenel, H. Y. ^{[1
,2
,3
]}

Lueth, H. ^{[1
,2
]}

Rieger, T. ^{[1
,2
]}

Wenz, T. ^{[1
,2
]}

Haas, F. ^{[1
,2
]}

Lepsa, M. ^{[1
,2
]}

Panaitov, G. ^{[2
,4
]}

Gruetzmacher, D. ^{[1
,2
]}

Schaepers, Th. ^{[1
,2
]}

机构：

[1] Forschungszentrum Julich, Peter Grunberg Inst PGI 9, D-52425 Julich, Germany

[2] Forschungszentrum Julich, JARA Fundamentals Future Informat Technol, D-52425 Julich, Germany

[3] Rhein Westfal TH Aachen, Inst Semicond Elect, D-52074 Aachen, Germany

[4] Forschungszentrum Julich, Peter Grunberg Inst PGI 8, D-52425 Julich, Germany

来源：

NANO LETTERS | 2014年 / 14卷 / 11期

关键词：

GaAS/InAs core/shell nanowires; magnetoconductance oscillations; Josephson effect; superconducting electrodes; Andreev reflection; reflectionless tunneling; CORE-SHELL NANOWIRES; ANDREEV REFLECTION; PHASE; INTERFACES; GROWTH;

D O I：

10.1021/nl502598s

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The magnetotransport of GaAs/InAs core/shell nanowires contacted by two superconducting Nb electrodes is investigated, where the InAs shell forms a tube-like conductive channel around the highly resistive GaAs core. By applying a magnetic field along the nanowire axis, regular magnetoconductance oscillations with an amplitude in the order of e(2)/h are observed. The oscillation amplitude is found to be larger by 2 orders of magnitude compared to the measurements of a reference sample with normal metal contacts. For the Nb-contacted core/shell nanowire the oscillation period corresponds to half a flux quantum Phi(0)/2 = h/2e in contrast to the period of Phi(0) of the reference sample. The strongly enhanced magnetoconductance oscillations are explained by phase-coherent resonant Andreev reflections at the Nb-core/shell nanowire interface.

引用

页码：6269 / 6274

页数：6

共 50 条

[21] Fabrication and characterization of mesoscopic superconductor-semiconductor hybrid structures
Huber, R
Rahman, F
Thornton, TJ
Norman, A
Stradling, RA
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1998, 16 (03): : 1244 - 1248
[22] Superconductor-semiconductor hybrid-circuit quantum electrodynamics
Burkard, Guido
Gullans, Michael J.
Mi, Xiao
Petta, Jason R.
NATURE REVIEWS PHYSICS, 2020, 2 (03) : 129 - 140
[23] Superconductor-semiconductor interaction effects in mesoscopic hybrid structures
Phys Rev B, 19 (14026):
[24] Hybrid superconductor-semiconductor devices made from self-assembled SiGe nanocrystals on silicon
Katsaros, G.
Spathis, P.
Stoffel, M.
Fournel, F.
Mongillo, M.
Bouchiat, V.
Lefloch, F.
Rastelli, A.
Schmidt, O. G.
De Franceschi, S.
NATURE NANOTECHNOLOGY, 2010, 5 (06) : 458 - 464
[25] Equilibrium Circular Photogalvanic Effect in a Hybrid Superconductor-Semiconductor System
Mal'shukov, A. G.
PHYSICAL REVIEW LETTERS, 2011, 107 (14)
[26] Gate-modified giant Andreev backscattering in a superconductor-semiconductor junction
Toyoda, E
Takayanagi, H
Nakano, H
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2000, 69 (06) : 1801 - 1806
[27] Thermal packaging limit for hybrid superconductor-semiconductor electronic circuits
Hijikata, Kunio
Flik, Markus I.
Nagasaki, Takao
Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, 1990, 56 (529): : 2747 - 2752
[28] Density of states of disordered topological superconductor-semiconductor hybrid nanowires
Sau, Jay D.
Das Sarma, S.
PHYSICAL REVIEW B, 2013, 88 (06):
[29] Distinguishing Majorana and quasi-Majorana bound states in a hybrid superconductor-semiconductor nanowire with inhomogeneous potential barriers
Tian, Hongyu
Ren, Chongdan
RESULTS IN PHYSICS, 2021, 26
[30] Majorana quasi-particles and superconductor-semiconductor hybrid nanowires
Yu Chun-Lin
Zhang Hao
ACTA PHYSICA SINICA, 2020, 69 (07)

← 1 2 3 4 5 →