التفاصيل البيبلوغرافية
| العنوان: |
Layer-by-Layer Decoupling of Twisted Graphene Sheets Epitaxially Grown on a Metal Substrate |
| المؤلفون: |
Simon, Sabina, Voloshina, Elena, Tesch, Julia, Foerschner, Felix, Enenkel, Vivien, Herbig, Charlotte, Knispel, Timo, Tries, Alexander, Kroeger, Joerg, Dedkov, Yuriy, Fonin, Mikhail |
| بيانات النشر: |
WILEY-V C H VERLAG GMBH |
| سنة النشر: |
2018 |
| المجموعة: |
Cologne University: KUPS |
| مصطلحات موضوعية: |
ddc:no |
| الوصف: |
The electronic properties of graphene can be efficiently altered upon interaction with the underlying substrate resulting in a dramatic change of charge carrier behavior. Here, the evolution of the local electronic properties of epitaxial graphene on a metal upon the controlled formation of multilayers, which are produced by intercalation of atomic carbon in graphene/Ir(111), is investigated. Using scanning tunneling microscopy and Landau-level spectroscopy, it is shown that for a monolayer and bilayers with small-angle rotations, Landau levels are fully suppressed, indicating that the metal-graphene interaction is largely confined to the first graphene layer. Bilayers with large twist angles as well as twisted trilayers demonstrate a sequence of pronounced Landau levels characteristic for a free-standing graphene monolayer pointing toward an effective decoupling of the top layer from the metal substrate. These findings give evidence for the controlled preparation of epitaxial graphene multilayers with a different degree of decoupling, which represent an ideal platform for future electronic and spintronic applications. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| Relation: |
Simon, Sabina, Voloshina, Elena orcid:0000-0002-1799-1125 , Tesch, Julia, Foerschner, Felix, Enenkel, Vivien, Herbig, Charlotte, Knispel, Timo, Tries, Alexander, Kroeger, Joerg, Dedkov, Yuriy orcid:0000-0001-7904-2892 and Fonin, Mikhail (2018). Layer-by-Layer Decoupling of Twisted Graphene Sheets Epitaxially Grown on a Metal Substrate. Small, 14 (13). WEINHEIM: WILEY-V C H VERLAG GMBH. ISSN 1613-6829 |
| الاتاحة: |
https://kups.ub.uni-koeln.de/19241/ |
| رقم الانضمام: |
edsbas.4FB52FA3 |
| قاعدة البيانات: |
BASE |