Fermiology and Superconductivity of Topological Surface States in PdTe_{2}

Physical Review Letters
O J ClarkP D C King

Abstract

We study the low-energy surface electronic structure of the transition-metal dichalcogenide superconductor PdTe_{2} by spin- and angle-resolved photoemission, scanning tunneling microscopy, and density-functional theory-based supercell calculations. Comparing PdTe_{2} with its sister compound PtSe_{2}, we demonstrate how enhanced interlayer hopping in the Te-based material drives a band inversion within the antibonding p-orbital manifold well above the Fermi level. We show how this mediates spin-polarized topological surface states which form rich multivalley Fermi surfaces with complex spin textures. Scanning tunneling spectroscopy reveals type-II superconductivity at the surface, and moreover shows no evidence for an unconventional component of its superconducting order parameter, despite the presence of topological surface states.

References

Jul 20, 2001·Physical Review Letters·L P Gor'kov, E I Rashba
May 1, 2012·Physical Review Letters·S M YoungA M Rappe
Oct 25, 2012·Nature Communications·M S BahramyF Baumberger
Dec 12, 2012·Physical Review Letters·Luis MaierLaurens W Molenkamp
Mar 21, 2013·Nature Chemistry·Manish ChhowallaHua Zhang
Jul 26, 2014·Physical Review Letters·Sergey BorisenkoRobert J Cava
Mar 31, 2015·Nature Communications·Zhixiang SunPeter Wahl
Nov 27, 2015·Nature·Alexey A SoluyanovB Andrei Bernevig
Oct 26, 2016·Nature Materials·Lunan HuangAdam Kaminski
Apr 4, 2017·Reports on Progress in Physics·Masatoshi Sato, Yoichi Ando
Jul 22, 2017·Physical Review Letters·Han-Jin NohByeong-Gyu Park
Aug 16, 2017·Nature Communications·Mingzhe YanShuyun Zhou

❮ Previous
Next ❯

Citations

Nov 23, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Aastha VasdevGoutam Sheet
Jan 25, 2020·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Jie Zhang, G Q Huang
Mar 17, 2020·Advanced Materials·Hongjun XuXiufeng Han
Oct 2, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·H LengA de Visser
Dec 14, 2018·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Anshu SirohiGoutam Sheet
Feb 18, 2020·Angewandte Chemie·Roman KemptThomas Heine
Aug 2, 2020·Scientific Reports·Saumya MukherjeeCephise Cacho
Nov 27, 2018·Journal of Physics. Condensed Matter : an Institute of Physics Journal·M V SalisA de Visser
Feb 12, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·M K HoodaD Samal
Dec 22, 2020·Chemical Reviews·Phil D C KingGiancarlo Panaccione
Jul 11, 2021·The Review of Scientific Instruments·Taner EsatRuslan Temirov
Jul 30, 2021·Nature Materials·Phil D C King

❮ 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.