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

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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 languageEnglish
Article number044303
JournalJournal of Applied Physics
Volume126
Issue number4
DOIs
Publication statusPublished - 2019 Jul 28

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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