Multi-component fractional quantum Hall states in graphene: SU(4) versus SU(2)

Journal of Physics. Condensed Matter : an Institute of Physics Journal
C Tőke, J K Jain

Abstract

Because of the spin and Dirac-valley degrees of freedom, graphene allows the observation of one-, two- or four-component fractional quantum Hall effects in different parameter regions. We address the stability of various states in the SU(2) and SU(4) limits. In the SU(4) limit, we predict that new low-energy Goldstone modes determine the stability of the fractional quantum Hall states at 2/5, 3/7, etc; SU(4) skyrmions are not found to be relevant for the low-energy physics. These results are discussed in light of experiments.

References

Jun 15, 1993·Physical Review. B, Condensed Matter·S L SondhiE H Rezayi
Jul 10, 1989·Physical Review Letters·J K Jain
Jul 5, 1993·Physical Review Letters·X G WuJ K Jain
Nov 20, 1995·Physical Review Letters·R R DuK W West
Oct 4, 2000·Physical Review Letters·S MelinteM Shayegan
Dec 18, 2002·Physical Review Letters·N FreytagL P Lévy
Aug 16, 2006·Physical Review Letters·Kentaro Nomura, Allan H MacDonald
Oct 10, 2006·Physical Review Letters·Vadim M Apalkov, Tapash Chakraborty
Nov 3, 2009·Nature·Kirill I BolotinPhilip Kim
Sep 11, 2010·Nature·Young Jae SongJoseph A Stroscio
Jan 15, 2011·Physical Review Letters·Z PapićN Regnault
Mar 17, 2011·Physical Review Letters·Fereshte GhahariPhilip Kim

❮ Previous
Next ❯

Citations

Jan 7, 2015·Nature Communications·F AmetD Goldhaber-Gordon
Nov 10, 2015·Physical Review Letters·Fengcheng WuThierry Jolicoeur
Jul 5, 2013·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Feng CaiZiqiang Wang
Apr 15, 2014·Physical Review Letters·I Sodemann, A H MacDonald
Sep 3, 2013·Physical Review Letters·Benjamin E FeldmanAmir Yacoby

❮ 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.