Quantized four-terminal resistances in a ferromagnetic graphene p-n junction

Journal of Physics. Condensed Matter : an Institute of Physics Journal
Lei XuChang-De Gong

Abstract

The quantum Hall and longitudinal resistances in four-terminal ferromagnetic graphene p-n junctions under a perpendicular magnetic field are investigated. In the Hall measurement, the transverse contacts are assumed to be located at the p-n interface to avoid the mixing of edge states at the interface and the resulting quantized resistances are then topologically protected. According to the charge carrier type, the resistances in a four-terminal p-n junction can be naturally divided into nine different regimes. The symmetric Hall and longitudinal resistances are observed, with many new robust quantum plateaus revealed due to the competition between spin splitting and local potentials.

References

Nov 11, 2005·Nature·K S NovoselovA A Firsov
Aug 19, 2006·Science·Taisuke OhtaEli Rotenberg
Mar 3, 2007·Nature Materials·A K Geim, K S Novoselov
Mar 3, 2007·Science·Vadim V CheianovB L Altshuler
Mar 16, 2007·Physical Review Letters·P G Silvestrov, K B Efetov
Jun 30, 2007·Science·D A Abanin, L S Levitov
Jun 30, 2007·Science·J R WilliamsC M Marcus
Aug 7, 2007·Physical Review Letters·B HuardD Goldhaber-Gordon
Aug 7, 2007·Physical Review Letters·M V Fistul, K B Efetov
Nov 13, 2007·Physical Review Letters·Barbaros OzyilmazPhilip Kim
Jun 4, 2008·Physical Review Letters·Jacob LinderAsle Sudbø
Nov 13, 2008·Physical Review Letters·Wen LongJian Wang
Mar 5, 2009·Physical Review Letters·N StanderD Goldhaber-Gordon
Apr 7, 2010·Physical Review Letters·Qing-feng Sun, X C Xie
Aug 27, 2011·Physical Review Letters·J R Williams, C M Marcus

❮ 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.