PMID: 22587275May 17, 2012Paper

Charge-transfer-induced cesium superlattices on graphene

Physical Review Letters
Can-Li SongQi-Kun Xue

Abstract

We investigate cesium (Cs) adsorption on graphene formed on a 6H-SiC(0001) substrate by a combined scanning tunneling microscopy and density functional theory study. Individual Cs atoms adsorb preferentially at the rim region of the well-defined 6×6 substrate superstructure and on multilayer graphene. By finely controlling the graphene thickness and Cs coverages (1/3  ML and 1 ML), we here demonstrate two intriguing and well-ordered Cs superlattices on bilayer and multilayer graphene (<6   layers). Statistical analysis of the Cs-Cs interatomic distance reveals a hitherto unobserved Cs-Cs long-range electrostatic potential caused by charge transfer from Cs to graphene, which couples with the inhomogeneous substrate potential to stabilize the observed Cs superlattices. The present study provides a new avenue to fabricate atomic and molecular superlattices for applications in high-density recording and data storage.

References

Jan 1, 1993·Physical Review. B, Condensed Matter·G Kresse, J Hafner
Feb 28, 2002·Physical Review Letters·Jian-Long LiS B Zhang
Feb 3, 2004·Physical Review Letters·Fabien SillyWolf-Dieter Schneider
Aug 19, 2006·Science·Taisuke OhtaEli Rotenberg
Dec 13, 2006·Physical Review Letters·Alpha T N'DiayeThomas Michely
Aug 7, 2007·Physical Review Letters·Takashi YokoyamaMasakuni Okamoto
Sep 4, 2008·Physical Review Letters·G GiovannettiP J Kelly
Jun 6, 2009·Journal of the American Chemical Society·Richard BalogLiv Hornekaer
Aug 8, 2009·Physical Review Letters·Andrei V ShytovLeonid S Levitov
Dec 25, 2009·Journal of the American Chemical Society·Haiqing ZhouLianfeng Sun
Aug 4, 2010·Nano Letters·Elad PollakRobert Kostecki
Nov 19, 2011·Nature·Kinam KimHyun-Jong Chung

❮ Previous
Next ❯

Citations

Jun 24, 2015·Scientific Reports·H-H ChenJ C A Huang
Jun 14, 2018·Physical Chemistry Chemical Physics : PCCP·Ivan ShtepliukRositsa Yakimova
Apr 30, 2016·Physical Review Letters·Can-Li SongQi-Kun Xue
Feb 25, 2014·Nanoscale·Brian J SchultzSarbajit Banerjee
Jul 31, 2012·ACS Nano·Marco BianchiJustin W Wells

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.