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Synthesis of two-dimensional Tl(x)Bi(1-x) compounds and Archimedean encoding of their atomic structure
- Source :
- Scientific Reports, Scientific Reports [Еlectronic resource]. 2016. Vol. 6. P. 19446 (1-9)
- Publication Year :
- 2015
-
Abstract
- Crystalline atomic layers on solid surfaces are composed of a single building block, unit cell, that is copied and stacked together to form the entire two-dimensional crystal structure. However, it appears that this is not an unique possibility. We report here on synthesis and characterization of the one-atomic-layer-thick TlxBi1−x compounds which display quite a different arrangement. It represents a quasi-periodic tiling structures that are built by a set of tiling elements as building blocks. Though the layer is lacking strict periodicity, it shows up as an ideally-packed tiling of basic elements without any skips or halting. The two-dimensional TlxBi1−x compounds were formed by depositing Bi onto the Tl-covered Si(111) surface where Bi atoms substitute appropriate amount of Tl atoms. Atomic structure of each tiling element as well as arrangement of TlxBi1−x compounds were established in a detail. Electronic properties and spin texture of the selected compounds having periodic structures were characterized. The shown example demonstrates possibility for the formation of the exotic low-dimensional materials via unusual growth mechanisms.
- Subjects :
- Surface (mathematics)
Multidisciplinary
Materials science
двумерные соединения
02 engineering and technology
Crystal structure
021001 nanoscience & nanotechnology
Block (periodic table)
computer.software_genre
01 natural sciences
Article
Characterization (materials science)
Crystallography
Encoding (memory)
0103 physical sciences
Data mining
Texture (crystalline)
010306 general physics
0210 nano-technology
Spin (physics)
квазипериодические структуры
computer
Unit (ring theory)
Subjects
Details
- ISSN :
- 20452322
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- Scientific reports
- Accession number :
- edsair.doi.dedup.....a5a0e1a9e9ff6a7e48f7defd3f597a83