Circularly polarized near-field optical mapping of spin-resolved quantum Hall chiral edge states

Nano Letters
Syuhei MamyoudaS Nomura

Abstract

We have successfully developed a circularly polarized near-field scanning optical microscope (NSOM) that enables us to irradiate circularly polarized light with spatial resolution below the diffraction limit. As a demonstration, we perform real-space mapping of the quantum Hall chiral edge states near the edge of a Hall-bar structure by injecting spin polarized electrons optically at low temperature. The obtained real-space mappings show that spin-polarized electrons are injected optically to the two-dimensional electron layer. Our general method to locally inject spins using a circularly polarized NSOM should be broadly applicable to characterize a variety of nanomaterials and nanostructures.

References

Sep 15, 1994·Physical Review. B, Condensed Matter·K Lier, R R Gerhardts
Jan 15, 1995·Physical Review. B, Condensed Matter·A Manolescu, R R Gerhardts
Aug 15, 1992·Physical Review. B, Condensed Matter·D B ChklovskiiL I Glazman
Feb 1, 1993·Physical Review Letters·R MerzK Ploog
Feb 13, 1995·Physical Review Letters· van Haren RJJ H Wolter
Mar 28, 2003·Nature·Yang JiHadas Shtrikman
Sep 28, 2004·Physical Review Letters·Shintaro Nomura, Yoshinobu Aoyagi
Sep 22, 2007·Science·Markus KönigShou-Cheng Zhang
Feb 1, 1994·Optics Letters·Y Inouye, S Kawata
Nov 26, 2010·ACS Nano·Jared K DayNaomi J Halas
Dec 24, 2010·Nano Letters·Lars NeumannNiek F van Hulst
Jan 17, 2012·Physical Review Letters·H ItoS Nomura
Oct 15, 2014·Nano Letters·Oren Ben DorYossi Paltiel

❮ Previous
Next ❯

Citations

Oct 16, 2015·Scientific Reports·Yusuke ShibataHideaki Takayanagi

❮ 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.