Stauber, T. ; González, J. 
; Gómez-Santos, G.
Alternative Links zum Volltext:DOIVerlag
| Dokumentenart: | Artikel |
|---|
| Titel eines Journals oder einer Zeitschrift: | Physical Review B |
|---|
| Verlag: | AMER PHYSICAL SOC |
|---|
| Ort der Veröffentlichung: | COLLEGE PK |
|---|
| Band: | 102 |
|---|
| Nummer des Zeitschriftenheftes oder des Kapitels: | 8 |
|---|
| Datum: | 2020 |
|---|
| Institutionen: | Physik > Institut für Theoretische Physik |
|---|
| Identifikationsnummer: | | Wert | Typ |
|---|
| 10.1103/PhysRevB.102.081404 | DOI |
|
|---|
| Stichwörter / Keywords: | MOIRE BANDS; |
|---|
| Dewey-Dezimal-Klassifikation: | 500 Naturwissenschaften und Mathematik > 530 Physik |
|---|
| Status: | Veröffentlicht |
|---|
| Begutachtet: | Ja, diese Version wurde begutachtet |
|---|
| An der Universität Regensburg entstanden: | Ja |
|---|
| Dokumenten-ID: | 49753 |
|---|
Zusammenfassung
We derive a simple formula for the real-space chirality of twisted bilayer graphene that can be related to the cross product of its sheet currents. This quantity shows well-defined plateaus for the first remote band as a function of the gate voltage which are approximately quantized for commensurate twist angles. The zeroth plateau corresponds to the first magic angle where a sign change occurs ...
Zusammenfassung
We derive a simple formula for the real-space chirality of twisted bilayer graphene that can be related to the cross product of its sheet currents. This quantity shows well-defined plateaus for the first remote band as a function of the gate voltage which are approximately quantized for commensurate twist angles. The zeroth plateau corresponds to the first magic angle where a sign change occurs due to an emergent C-6 symmetry. Our observation offers a new definition of the magic angle based on a macroscopic observable which is accessible in typical transport experiments.
Altmetric