Quasiparticle interference evidence of the topological Fermi arc states in chiral fermionic semimetal CoSi.

Abstract:

:Chiral fermions in solid state feature "Fermi arc" states, connecting the surface projections of the bulk chiral nodes. The surface Fermi arc is a signature of nontrivial bulk topology. Unconventional chiral fermions with an extensive Fermi arc traversing the whole Brillouin zone have been theoretically proposed in CoSi. Here, we use scanning tunneling microscopy/spectroscopy to investigate quasiparticle interference at various terminations of a CoSi single crystal. The observed surface states exhibit chiral fermion-originated characteristics. These reside on (001) and (011) but not (111) surfaces with p-rotation symmetry, spiral with energy, and disperse in a wide energy range from ~-200 to ~+400 mV. Owing to the high-energy and high-space resolution, a spin-orbit coupling-induced splitting of up to ~80 mV is identified. Our observations are corroborated by density functional theory and provide strong evidence that CoSi hosts the unconventional chiral fermions and the extensive Fermi arc states.

journal_name

Sci Adv

journal_title

Science advances

authors

Yuan QQ,Zhou L,Rao ZC,Tian S,Zhao WM,Xue CL,Liu Y,Zhang T,Tang CY,Shi ZQ,Jia ZY,Weng H,Ding H,Sun YJ,Lei H,Li SC

doi

10.1126/sciadv.aaw9485

subject

Has Abstract

pub_date

2019-12-20 00:00:00

pages

eaaw9485

issue

12

issn

2375-2548

pii

aaw9485

journal_volume

5

pub_type

杂志文章
  • 1-Methylnicotinamide is an immune regulatory metabolite in human ovarian cancer.

    abstract::Immune regulatory metabolites are key features of the tumor microenvironment (TME), yet with a few exceptions, their identities remain largely unknown. Here, we profiled tumor and T cells from tumor and ascites of patients with high-grade serous carcinoma (HGSC) to uncover the metabolomes of these distinct TME compart...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.abe1174

    authors: Kilgour MK,MacPherson S,Zacharias LG,Ellis AE,Sheldon RD,Liu EY,Keyes S,Pauly B,Carleton G,Allard B,Smazynski J,Williams KS,Watson PH,Stagg J,Nelson BH,DeBerardinis RJ,Jones RG,Hamilton PT,Lum JJ

    更新日期:2021-01-20 00:00:00

  • Paramagnon drag in high thermoelectric figure of merit Li-doped MnTe.

    abstract::Local thermal magnetization fluctuations in Li-doped MnTe are found to increase its thermopower α strongly at temperatures up to 900 K. Below the Néel temperature (TN ~ 307 K), MnTe is antiferromagnetic, and magnon drag contributes αmd to the thermopower, which scales as ~T3. Magnon drag persists into the paramagnetic...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.aat9461

    authors: Zheng Y,Lu T,Polash MMH,Rasoulianboroujeni M,Liu N,Manley ME,Deng Y,Sun PJ,Chen XL,Hermann RP,Vashaee D,Heremans JP,Zhao H

    更新日期:2019-09-13 00:00:00

  • Eavesdropping on the Arctic: Automated bioacoustics reveal dynamics in songbird breeding phenology.

    abstract::Bioacoustic networks could vastly expand the coverage of wildlife monitoring to complement satellite observations of climate and vegetation. This approach would enable global-scale understanding of how climate change influences phenomena such as migratory timing of avian species. The enormous data sets that autonomous...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.aaq1084

    authors: Oliver RY,Ellis DPW,Chmura HE,Krause JS,Pérez JH,Sweet SK,Gough L,Wingfield JC,Boelman NT

    更新日期:2018-06-20 00:00:00

  • Discovery of (meth)acrylate polymers that resist colonization by fungi associated with pathogenesis and biodeterioration.

    abstract::Fungi have major, negative socioeconomic impacts, but control with bioactive agents is increasingly restricted, while resistance is growing. Here, we describe an alternative fungal control strategy via materials operating passively (i.e., no killing effect). We screened hundreds of (meth)acrylate polymers in high thro...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.aba6574

    authors: Vallieres C,Hook AL,He Y,Crucitti VC,Figueredo G,Davies CR,Burroughs L,Winkler DA,Wildman RD,Irvine DJ,Alexander MR,Avery SV

    更新日期:2020-06-05 00:00:00

  • Detection of a dynamic topography signal in last interglacial sea-level records.

    abstract::Estimating minimum ice volume during the last interglacial based on local sea-level indicators requires that these indicators are corrected for processes that alter local sea level relative to the global average. Although glacial isostatic adjustment is generally accounted for, global scale dynamic changes in topograp...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.1700457

    authors: Austermann J,Mitrovica JX,Huybers P,Rovere A

    更新日期:2017-07-07 00:00:00

  • Controlled growth and shape-directed self-assembly of gold nanoarrows.

    abstract::Self-assembly of colloidal nanocrystals into complex superstructures offers notable opportunities to create functional devices and artificial materials with unusual properties. Anisotropic nanoparticles with nonspherical shapes, such as rods, plates, polyhedra, and multipods, enable the formation of a diverse range of...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.1701183

    authors: Wang Q,Wang Z,Li Z,Xiao J,Shan H,Fang Z,Qi L

    更新日期:2017-10-27 00:00:00

  • High geothermal heat flux measured below the West Antarctic Ice Sheet.

    abstract::The geothermal heat flux is a critical thermal boundary condition that influences the melting, flow, and mass balance of ice sheets, but measurements of this parameter are difficult to make in ice-covered regions. We report the first direct measurement of geothermal heat flux into the base of the West Antarctic Ice Sh...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.1500093

    authors: Fisher AT,Mankoff KD,Tulaczyk SM,Tyler SW,Foley N,WISSARD Science Team.

    更新日期:2015-07-10 00:00:00

  • Origin of Phobos and Deimos by the impact of a Vesta-to-Ceres sized body with Mars.

    abstract::It has been proposed that Mars' moons formed from a disk produced by a large impact with the planet. However, whether such an event could produce tiny Phobos and Deimos remains unclear. Using a hybrid N-body model of moon accumulation that includes a full treatment of moon-moon dynamical interactions, we first identif...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.aar6887

    authors: Canup R,Salmon J

    更新日期:2018-04-18 00:00:00

  • Chemical trigger toward phase separation in the aqueous Al(III) system revealed.

    abstract::Although Al(III) hydrolysis, condensation, and nucleation play pivotal roles in the synthesis of Al-based compounds and determine their chemical behavior, we still lack experimental evidence regarding the chemistry of nucleation from solution. Here, by combining advanced titration assays, high-resolution transmission ...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.aba6878

    authors: Lukić MJ,Wiedenbeck E,Reiner H,Gebauer D

    更新日期:2020-06-03 00:00:00

  • Compositional mantle layering revealed by slab stagnation at ~1000-km depth.

    abstract::Improved constraints on lower-mantle composition are fundamental to understand the accretion, differentiation, and thermochemical evolution of our planet. Cosmochemical arguments indicate that lower-mantle rocks may be enriched in Si relative to upper-mantle pyrolite, whereas seismic tomography images suggest whole-ma...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.1500815

    authors: Ballmer MD,Schmerr NC,Nakagawa T,Ritsema J

    更新日期:2015-12-10 00:00:00

  • Evolution of metabolic novelty: A trichome-expressed invertase creates specialized metabolic diversity in wild tomato.

    abstract::Plants produce a myriad of taxonomically restricted specialized metabolites. This diversity-and our ability to correlate genotype with phenotype-makes the evolution of these ecologically and medicinally important compounds interesting and experimentally tractable. Trichomes of tomato and other nightshade family plants...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.aaw3754

    authors: Leong BJ,Lybrand DB,Lou YR,Fan P,Schilmiller AL,Last RL

    更新日期:2019-04-24 00:00:00

  • Structural and spectral dynamics of single-crystalline Ruddlesden-Popper phase halide perovskite blue light-emitting diodes.

    abstract::Achieving perovskite-based high-color purity blue-emitting light-emitting diodes (LEDs) is still challenging. Here, we report successful synthesis of a series of blue-emissive two-dimensional Ruddlesden-Popper phase single crystals and their high-color purity blue-emitting LED demonstrations. Although this approach su...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.aay4045

    authors: Chen H,Lin J,Kang J,Kong Q,Lu D,Kang J,Lai M,Quan LN,Lin Z,Jin J,Wang LW,Toney MF,Yang P

    更新日期:2020-01-24 00:00:00

  • Nanoscale chemical imaging by photoinduced force microscopy.

    abstract::Correlating spatial chemical information with the morphology of closely packed nanostructures remains a challenge for the scientific community. For example, supramolecular self-assembly, which provides a powerful and low-cost way to create nanoscale patterns and engineered nanostructures, is not easily interrogated in...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.1501571

    authors: Nowak D,Morrison W,Wickramasinghe HK,Jahng J,Potma E,Wan L,Ruiz R,Albrecht TR,Schmidt K,Frommer J,Sanders DP,Park S

    更新日期:2016-03-25 00:00:00

  • Biomimetic human small muscular pulmonary arteries.

    abstract::Changes in structure and function of small muscular arteries play a major role in the pathophysiology of pulmonary hypertension, a burgeoning public health challenge. Improved anatomically mimetic in vitro models of these microvessels are urgently needed because nonhuman vessels and previous models do not accurately r...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.aaz2598

    authors: Jin Q,Bhatta A,Pagaduan JV,Chen X,West-Foyle H,Liu J,Hou A,Berkowitz D,Kuo SC,Askin FB,Nguyen TD,Gracias DH,Romer LH

    更新日期:2020-03-25 00:00:00

  • Microengineered 3D pulmonary interstitial mimetics highlight a critical role for matrix degradation in myofibroblast differentiation.

    abstract::Fibrosis, characterized by aberrant tissue scarring from activated myofibroblasts, is often untreatable. Although the extracellular matrix becomes increasingly stiff and fibrous during disease progression, how these physical cues affect myofibroblast differentiation in 3D is poorly understood. Here, we describe a mult...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.abb5069

    authors: Matera DL,DiLillo KM,Smith MR,Davidson CD,Parikh R,Said M,Wilke CA,Lombaert IM,Arnold KB,Moore BB,Baker BM

    更新日期:2020-09-09 00:00:00

  • Nectar uptake in bats using a pumping-tongue mechanism.

    abstract::Many insects use nectar as their principal diet and have mouthparts specialized in nectarivory, whereas most nectar-feeding vertebrates are opportunistic users of floral resources and only a few species show distinct morphological specializations. Specialized nectar-feeding bats extract nectar from flowers using elong...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.1500525

    authors: Tschapka M,Gonzalez-Terrazas TP,Knörnschild M

    更新日期:2015-09-25 00:00:00

  • Record Balkan floods of 2014 linked to planetary wave resonance.

    abstract::In May 2014, the Balkans were hit by a Vb-type cyclone that brought disastrous flooding and severe damage to Bosnia and Herzegovina, Serbia, and Croatia. Vb cyclones migrate from the Mediterranean, where they absorb warm and moist air, to the north, often causing flooding in central/eastern Europe. Extreme rainfall ev...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.1501428

    authors: Stadtherr L,Coumou D,Petoukhov V,Petri S,Rahmstorf S

    更新日期:2016-04-15 00:00:00

  • All major cholesterol-dependent cytolysins use glycans as cellular receptors.

    abstract::Cholesterol-dependent cytolysins (CDCs) form pores in cholesterol-rich membranes, but cholesterol alone is insufficient to explain their cell and host tropism. Here, we show that all eight major CDCs have high-affinity lectin activity that identifies glycans as candidate cellular receptors. Streptolysin O, vaginolysin...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.aaz4926

    authors: Shewell LK,Day CJ,Jen FE,Haselhorst T,Atack JM,Reijneveld JF,Everest-Dass A,James DBA,Boguslawski KM,Brouwer S,Gillen CM,Luo Z,Kobe B,Nizet V,von Itzstein M,Walker MJ,Paton AW,Paton JC,Torres VJ,Jennings MP

    更新日期:2020-05-22 00:00:00

  • Liquid repellency enhancement through flexible microstructures.

    abstract::Artificial liquid-repellent surfaces have attracted substantial scientific and industrial attention with a focus on creating functional topological features; however, the role of the underlying structures has been overlooked. Recent developments in micro-nanofabrication allow us now to construct a skin-muscle type sys...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.aba9721

    authors: Hu S,Cao X,Reddyhoff T,Puhan D,Vladescu SC,Wang J,Shi X,Peng Z,deMello AJ,Dini D

    更新日期:2020-08-05 00:00:00

  • Electrodeposited surfaces with reversibly switching interfacial properties.

    abstract::Engineered surfaces with reversibly switching interfacial properties, such as wettability and liquid repellency, are highly desirable in diverse application fields but are rare. We have developed a general concept to prepare metallic porous surfaces with exceptionally powerful wettability switch capabilities and liqui...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.aax0380

    authors: Liu Y,Zhao L,Lin J,Yang S

    更新日期:2019-11-01 00:00:00

  • Structural basis of Lewis(b) antigen binding by the Helicobacter pylori adhesin BabA.

    abstract::Helicobacter pylori is a leading cause of peptic ulceration and gastric cancer worldwide. To achieve colonization of the stomach, this Gram-negative bacterium adheres to Lewis(b) (Le(b)) antigens in the gastric mucosa using its outer membrane protein BabA. Structural information for BabA has been elusive, and thus, it...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.1500315

    authors: Hage N,Howard T,Phillips C,Brassington C,Overman R,Debreczeni J,Gellert P,Stolnik S,Winkler GS,Falcone FH

    更新日期:2015-08-14 00:00:00

  • Chemical potential-electric double layer coupling in conjugated polymer-polyelectrolyte blends.

    abstract::Conjugated polymer-polyelectrolyte blends combine and couple electronic semiconductor functionality with selective ionic transport, making them attractive as the active material in organic biosensors and bioelectronics, electrochromic displays, neuromorphic computing, and energy conversion and storage. Although extens...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.aao3659

    authors: Tybrandt K,Zozoulenko IV,Berggren M

    更新日期:2017-12-15 00:00:00

  • Cost-effective priorities for the expansion of global terrestrial protected areas: Setting post-2020 global and national targets.

    abstract::Biodiversity loss is a social and ecological emergency, and calls have been made for the global expansion of protected areas (PAs) to tackle this crisis. It is unclear, however, where best to locate new PAs to protect biodiversity cost-effectively. To answer this question, we conducted a spatial meta-analysis by overl...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.abc3436

    authors: Yang R,Cao Y,Hou S,Peng Q,Wang X,Wang F,Tseng TH,Yu L,Carver S,Convery I,Zhao Z,Shen X,Li S,Zheng Y,Liu H,Gong P,Ma K

    更新日期:2020-09-09 00:00:00

  • Cation-induced shape programming and morphing in protein-based hydrogels.

    abstract::Smart materials that are capable of memorizing a temporary shape, and morph in response to a stimulus, have the potential to revolutionize medicine and robotics. Here, we introduce an innovative method to program protein hydrogels and to induce shape changes in aqueous solutions at room temperature. We demonstrate our...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.aba6112

    authors: Khoury LR,Slawinski M,Collison DR,Popa I

    更新日期:2020-04-29 00:00:00

  • Off-axis magmatism along a subaerial back-arc rift: Observations from the Taupo Volcanic Zone, New Zealand.

    abstract::Continental rifting and seafloor spreading play a fundamental role in the generation of new crust. However, the distribution of magma and its relationship with tectonics and volcanism remain poorly understood, particularly in back-arc settings. We show evidence for a large, long-lived, off-axis magmatic intrusion loca...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.1600288

    authors: Hamling IJ,Hreinsdóttir S,Bannister S,Palmer N

    更新日期:2016-06-03 00:00:00

  • Three-dimensional structure of 22 uncultured ssRNA bacteriophages: Flexibility of the coat protein fold and variations in particle shapes.

    abstract::The single-stranded RNA (ssRNA) bacteriophages are among the simplest known viruses with small genomes and exceptionally high mutation rates. The number of ssRNA phage isolates has remained very low, but recent metagenomic studies have uncovered an immense variety of distinct uncultured ssRNA phages. The coat proteins...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.abc0023

    authors: Rūmnieks J,Liekniņa I,Kalniņš G,Šišovs M,Akopjana I,Bogans J,Tārs K

    更新日期:2020-09-02 00:00:00

  • A specialized flavone biosynthetic pathway has evolved in the medicinal plant, Scutellaria baicalensis.

    abstract::Wogonin and baicalein are bioactive flavones in the popular Chinese herbal remedy Huang-Qin (Scutellaria baicalensis Georgi). These specialized flavones lack a 4'-hydroxyl group on the B ring (4'-deoxyflavones) and induce apoptosis in a wide spectrum of human tumor cells in vitro and inhibit tumor growth in vivo in di...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.1501780

    authors: Zhao Q,Zhang Y,Wang G,Hill L,Weng JK,Chen XY,Xue H,Martin C

    更新日期:2016-04-08 00:00:00

  • Honeybees forage more successfully without the "dance language" in challenging environments.

    abstract::Honeybees use the waggle dance to share information about food-site locations with nestmates. However, the importance of this behavior in colony foraging success remains unclear. We tested whether spatial dance information affects colony foraging success in a human-modified temperate environment by comparing colonies ...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.aat0450

    authors: I'Anson Price R,Dulex N,Vial N,Vincent C,Grüter C

    更新日期:2019-02-13 00:00:00

  • Dual pH-sensitive nanodrug blocks PD-1 immune checkpoint and uses T cells to deliver NF-κB inhibitor for antitumor immunotherapy.

    abstract::The response to programmed cell death protein-1 (PD-1)/programmed death ligand-1 (PD-L1) blockade in cancer immunotherapy is limited because of multiple immune evasion mechanisms. Here, a previously unknown strategy is proposed to synergize the nuclear factor κB (NF-κB) inhibition and PD-1 blockade for antitumor immun...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.aay7785

    authors: Xiao Z,Su Z,Han S,Huang J,Lin L,Shuai X

    更新日期:2020-02-05 00:00:00

  • Anomalous fracture in two-dimensional rhenium disulfide.

    abstract::Low-dimensional materials usually exhibit mechanical properties from those of their bulk counterparts. Here, we show in two-dimensional (2D) rhenium disulfide (ReS2) that the fracture processes are dominated by a variety of previously unidentified phenomena, which are not present in bulk materials. Through direct tran...

    journal_title:Science advances

    pub_type: 杂志文章

    doi:10.1126/sciadv.abc2282

    authors: Huang L,Zheng F,Deng Q,Thi QH,Wong LW,Cai Y,Wang N,Lee CS,Lau SP,Ly TH,Zhao J

    更新日期:2020-11-18 00:00:00