Discrete quantum levels and Zeeman splitting in ultra-thin gold-nanowire quantum dots

Satoshi Moriyama; Yoshifumi Morita; Masanori Yoshihira; Hiroaki Kura; Tomoyuki Ogawa; Hideyuki Maki

doi:10.1063/1.5085230

Discrete quantum levels and Zeeman splitting in ultra-thin gold-nanowire quantum dots

Satoshi Moriyama, Yoshifumi Morita, Masanori Yoshihira, Hiroaki Kura, Tomoyuki Ogawa, Hideyuki Maki

ENG - Electronic Engineering

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

Abstract

We fabricate ultrathin gold nanowires (AuNWs) by means of a wet-chemical synthesis involving a reduction reaction. Our low-temperature transport measurements reveal the presence of the Coulomb-blockade effect and the formation of discrete quantum levels in an individual AuNW. We also observe the Zeeman splitting of the quantum levels in AuNW quantum dots under the application of magnetic fields via single-electron transport measurements using excitation spectroscopy. Our experimental results indicate that spin-orbit coupling strongly suppresses the estimated g-factor.

Original language	English
Article number	044303
Journal	Journal of Applied Physics
Volume	126
Issue number	4
DOIs	https://doi.org/10.1063/1.5085230
Publication status	Published - 2019 Jul 28

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.5085230

Fingerprint Dive into the research topics of 'Discrete quantum levels and Zeeman splitting in ultra-thin gold-nanowire quantum dots'. Together they form a unique fingerprint.

Cite this

@article{fecb58d6581a4cc1b75c42b9b9bf7dec,

title = "Discrete quantum levels and Zeeman splitting in ultra-thin gold-nanowire quantum dots",

abstract = "We fabricate ultrathin gold nanowires (AuNWs) by means of a wet-chemical synthesis involving a reduction reaction. Our low-temperature transport measurements reveal the presence of the Coulomb-blockade effect and the formation of discrete quantum levels in an individual AuNW. We also observe the Zeeman splitting of the quantum levels in AuNW quantum dots under the application of magnetic fields via single-electron transport measurements using excitation spectroscopy. Our experimental results indicate that spin-orbit coupling strongly suppresses the estimated g-factor.",

author = "Satoshi Moriyama and Yoshifumi Morita and Masanori Yoshihira and Hiroaki Kura and Tomoyuki Ogawa and Hideyuki Maki",

year = "2019",

month = jul,

day = "28",

doi = "10.1063/1.5085230",

language = "English",

volume = "126",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics Publising LLC",

number = "4",

}

TY - JOUR

T1 - Discrete quantum levels and Zeeman splitting in ultra-thin gold-nanowire quantum dots

AU - Moriyama, Satoshi

AU - Morita, Yoshifumi

AU - Yoshihira, Masanori

AU - Kura, Hiroaki

AU - Ogawa, Tomoyuki

AU - Maki, Hideyuki

PY - 2019/7/28

Y1 - 2019/7/28

N2 - We fabricate ultrathin gold nanowires (AuNWs) by means of a wet-chemical synthesis involving a reduction reaction. Our low-temperature transport measurements reveal the presence of the Coulomb-blockade effect and the formation of discrete quantum levels in an individual AuNW. We also observe the Zeeman splitting of the quantum levels in AuNW quantum dots under the application of magnetic fields via single-electron transport measurements using excitation spectroscopy. Our experimental results indicate that spin-orbit coupling strongly suppresses the estimated g-factor.

AB - We fabricate ultrathin gold nanowires (AuNWs) by means of a wet-chemical synthesis involving a reduction reaction. Our low-temperature transport measurements reveal the presence of the Coulomb-blockade effect and the formation of discrete quantum levels in an individual AuNW. We also observe the Zeeman splitting of the quantum levels in AuNW quantum dots under the application of magnetic fields via single-electron transport measurements using excitation spectroscopy. Our experimental results indicate that spin-orbit coupling strongly suppresses the estimated g-factor.

UR - http://www.scopus.com/inward/record.url?scp=85069526891&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85069526891&partnerID=8YFLogxK

U2 - 10.1063/1.5085230

DO - 10.1063/1.5085230

M3 - Article

AN - SCOPUS:85069526891

VL - 126

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 4

M1 - 044303

ER -