Double-Gated Nanohelix as a Novel Tunable Binary Superlattice

Autor:	Thomas P. Collier, Mikhail E. Portnoi
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	Nanohelix Non-simply-connected nanostructures Superlattice Binary superlattice Energy bands crossings Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Nanoscale Research Letters, Vol 14, Iss 1, Pp 1-14 (2019)
Druh dokumentu:	article
ISSN:	1931-7573 1556-276X
DOI:	10.1186/s11671-019-3069-9
Popis:	Abstract We theoretically investigate the problem of an electron confined to a nanohelix between two parallel gates modelled as charged wires. The double-gated nanohelix system is a binary superlattice with properties highly sensitive to the gate voltages. In particular, the band structure exhibits energy band crossings for certain combinations of gate voltages, which could lead to quasi-relativistic Dirac-like phenomena. Our analysis for optical transitions induced by linearly and circularly polarized light suggests that a double-gated nanohelix can be used for versatile optoelectronic applications.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/176756ca145243ada125713af17b8436 Zobrazit plný text záznamu Full text from SpringerLink View record in DOAJ