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Se-77 Nuclear Magnetic Resonance Study of the Surface Effect in Topological Insulator Bi2Se3 Nanoparticles
- Authors
- Choi, Dong Min; Lee, Cheol Eui
- Issue Date
- 4월-2018
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- Bi2Se3 nanoparticles mixed with insulating nanoparticles; Surface effect; Se-77 nuclear magnetic resonance
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.72, no.7, pp.835 - 837
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 72
- Number
- 7
- Start Page
- 835
- End Page
- 837
- ISSN
- 0374-4884
- Abstract
- We have carried out Se-77 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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