Quantum size effect on Shubnikov-de Haas oscillations in 100 nm diameter single-crystalline bismuth nanowire

Jeongmin Kim, Dohun Kim, Taehoo Chang, Wooyoung Lee

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Quantum size effect (QSE) in Bi nanowire is theoretically predicted to decrease band overlap energy resulting in semimetal-to-semiconductor transition. However, this effect has been rarely demonstrated on transport properties because of carrier-surface scattering and charge carriers induced from surface states of Bi. We report QSE on Shubnikov-de Haas (SdH) oscillations in a single-crystalline Bi nanowire with a diameter of 100 nm. The variation of intrinsic properties estimated using SdH oscillations indicates that the subband energy shift due to QSE. The enhanced effective mass of the electrons is consistent with the theoretical prediction pertaining to strong electron-hole coupling of Bi.

Original languageEnglish
Article number123107
JournalApplied Physics Letters
Volume105
Issue number12
DOIs
Publication statusPublished - 2014 Sep 22

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bismuth
nanowires
oscillations
metalloids
energy bands
charge carriers
transport properties
shift
predictions
scattering
electrons
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

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abstract = "Quantum size effect (QSE) in Bi nanowire is theoretically predicted to decrease band overlap energy resulting in semimetal-to-semiconductor transition. However, this effect has been rarely demonstrated on transport properties because of carrier-surface scattering and charge carriers induced from surface states of Bi. We report QSE on Shubnikov-de Haas (SdH) oscillations in a single-crystalline Bi nanowire with a diameter of 100 nm. The variation of intrinsic properties estimated using SdH oscillations indicates that the subband energy shift due to QSE. The enhanced effective mass of the electrons is consistent with the theoretical prediction pertaining to strong electron-hole coupling of Bi.",
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Quantum size effect on Shubnikov-de Haas oscillations in 100 nm diameter single-crystalline bismuth nanowire. / Kim, Jeongmin; Kim, Dohun; Chang, Taehoo; Lee, Wooyoung.

In: Applied Physics Letters, Vol. 105, No. 12, 123107, 22.09.2014.

Research output: Contribution to journalArticle

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