Stability of Anomalous States of a Local Potential in Graphene
DC Field | Value | Language |
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dc.contributor.author | Kim, S. C. | - |
dc.contributor.author | Jeong, Y. H. | - |
dc.contributor.author | Yang, S. -R. Eric | - |
dc.date.accessioned | 2021-09-04T11:59:02Z | - |
dc.date.available | 2021-09-04T11:59:02Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2015-10 | - |
dc.identifier.issn | 1533-4880 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/92313 | - |
dc.description.abstract | Graphene Landau levels have discrete energies consisting zero energy chiral states and non-zero energy states with mixed chirality. Each Landau level splits into discrete energies when a localized potential is present. A simple scaling analysis suggests that a localized potential can act as a strong perturbation, and that it can be even more singular in graphene than in ordinary two-dimensional systems of massful electrons. Parabolic, Coulomb, and Gaussian potentials in graphene may have anomalous boundstates whose probability density has a sharp peak inside the potential and a broad peak of size magnetic length l outside the potential. The n = 0 Landau level with zero energy has only one anomalous state while the n = +/-1 Landau levels with non-zero energy have two (integer quantum number n is related to the quantized Landau level energies). These anomalous states can provide a new magnetospectroscopic feature in impurity cyclotron resonances of graphene. In the present work we investigate quantitatively the conditions under which the anomalous states can exist. These results may provide a guide in searching for anomalous states experimentally. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER SCIENTIFIC PUBLISHERS | - |
dc.title | Stability of Anomalous States of a Local Potential in Graphene | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Yang, S. -R. Eric | - |
dc.identifier.doi | 10.1166/jnn.2015.11251 | - |
dc.identifier.scopusid | 2-s2.0-84947569073 | - |
dc.identifier.wosid | 000365554600155 | - |
dc.identifier.bibliographicCitation | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.15, no.10, pp.8263 - 8266 | - |
dc.relation.isPartOf | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | - |
dc.citation.title | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | - |
dc.citation.volume | 15 | - |
dc.citation.number | 10 | - |
dc.citation.startPage | 8263 | - |
dc.citation.endPage | 8266 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordAuthor | Graphene | - |
dc.subject.keywordAuthor | Dirac Electron | - |
dc.subject.keywordAuthor | Magnetic Field | - |
dc.subject.keywordAuthor | A Localized Potential | - |
dc.subject.keywordAuthor | Anomalous State | - |
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