Surface properties of topological insulator Bi2Se3 nanoparticles separated by impedance spectroscopy
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Choi, Dong Min | - |
dc.contributor.author | Lee, Kyu Won | - |
dc.contributor.author | Jeon, Gi Wan | - |
dc.contributor.author | Kim, Do Wan | - |
dc.contributor.author | Lee, Cheol Eui | - |
dc.date.accessioned | 2021-09-03T04:55:27Z | - |
dc.date.available | 2021-09-03T04:55:27Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2017-06-19 | - |
dc.identifier.issn | 0003-6951 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/83109 | - |
dc.description.abstract | We have separated the surface and bulk electrical properties of the Bi2Se3 nanoparticles by means of impedance spectroscopy. An equivalent circuit analysis of the complex impedance data comprising two separate resistance components, R-B and R-S, and two separate inductance components, L-B and L-S, enabled us to separate the bulk and surface properties of the topological insulator. One of the resistance components, R-S, attributed to the surface, showed no temperature dependence, whereas the other, R-B, attributed to the bulk, showed a weak metallic behavior. With increasing surface-to-bulk ratio by mixing with insulating Al2O3 nanoparticles up to the ratio of 1: 1, the surface resistivity showed decrease up to similar to 70%, whereas the bulk resistivity showed increase up to similar to 150%. While the bulk state showed increasing electrical resistivity up to 200% with aging up to 30 days, the surface state resistivity did not show an aging effect. Published by AIP Publishing. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER INST PHYSICS | - |
dc.subject | SINGLE DIRAC CONE | - |
dc.subject | BI2TE3 | - |
dc.subject | NANORIBBONS | - |
dc.subject | CONDUCTION | - |
dc.subject | STATES | - |
dc.title | Surface properties of topological insulator Bi2Se3 nanoparticles separated by impedance spectroscopy | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Kyu Won | - |
dc.contributor.affiliatedAuthor | Lee, Cheol Eui | - |
dc.identifier.doi | 10.1063/1.4986960 | - |
dc.identifier.scopusid | 2-s2.0-85021163643 | - |
dc.identifier.wosid | 000404337800035 | - |
dc.identifier.bibliographicCitation | APPLIED PHYSICS LETTERS, v.110, no.25 | - |
dc.relation.isPartOf | APPLIED PHYSICS LETTERS | - |
dc.citation.title | APPLIED PHYSICS LETTERS | - |
dc.citation.volume | 110 | - |
dc.citation.number | 25 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | SINGLE DIRAC CONE | - |
dc.subject.keywordPlus | BI2TE3 | - |
dc.subject.keywordPlus | NANORIBBONS | - |
dc.subject.keywordPlus | CONDUCTION | - |
dc.subject.keywordPlus | STATES | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.