77Se Nuclear Magnetic Resonance Study of the Surface Effect in Topological Insulator Bi2Se3 Nanoparticles

Dong Min Choi; Cheol Eui Lee

doi:10.3938/jkps.72.835

⁷⁷Se Nuclear Magnetic Resonance Study of the Surface Effect in Topological Insulator Bi₂Se₃ Nanoparticles

Dong Min Choi, Cheol Eui Lee

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

4 Citations (Scopus)

Abstract

We have carried out ⁷⁷Se nuclear magnetic resonance (NMR) measurements in order to probe the surface state of topological insulator Bi₂Se₃ nanoparticles physically mixed with insulating Al₂O₃ nanoparticles. Two distinct peaks in the NMR spectra were separately assigned to the surface and the bulk regions in the samples with different mixing ratios, manifesting an increase in the surface effect.

Original language	English
Pages (from-to)	835-837
Number of pages	3
Journal	Journal of the Korean Physical Society
Volume	72
Issue number	7
DOIs	https://doi.org/10.3938/jkps.72.835
Publication status	Published - 2018 Apr 1

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (Project No. 2016R1D1A1A 09917003). The Korea Basic Science Institute (KBSI) is acknowledged for the measurements.

Publisher Copyright:
© 2018, The Korean Physical Society.

Keywords

BiSe nanoparticles mixed with insulating nanoparticles
Se nuclear magnetic resonance
Surface effect

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.3938/jkps.72.835

Cite this

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abstract = "We have carried out 77Se nuclear magnetic resonance (NMR) measurements in order to probe the surface state of topological insulator Bi2Se3 nanoparticles physically mixed with insulating Al2O3 nanoparticles. Two distinct peaks in the NMR spectra were separately assigned to the surface and the bulk regions in the samples with different mixing ratios, manifesting an increase in the surface effect.",

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