Results 111 to 120 of about 15,148,093 (364)

A possible candidate for triply degenerate point fermions in trigonal layered PtBi2

Nature Communications, 2018
Triply degenerate point (TP) fermions have been reported in MoP but the TPs are far below the Fermi level. Here, Guo et al. predict and verify the possible existence of TP fermions in trigonal layered PtBi2, where the TP points are close to the Fermi ...
Wenshuai Gao, Xiangde Zhu, Fawei Zheng, Min Wu, Jinglei Zhang, Chuanying Xi, Ping Zhang, Yuheng Zhang, Ning Hao, Wei Ning, Mingliang Tian   +10 more
doaj   +1 more source

Wave-vector dependent intensity variations of the Kondo peak in photoemission from CePd$_3$

, 2005
Strong angle-dependent intensity variations of the Fermi-level feature are observed in 4d - 4f resonant photoemission spectra of CePd$_3$(111), that reveal the periodicity of the lattice and largest intensity close to the Gamma points of the surface ...
C. Laubschat, D. V. Vyalikh, J. Boysen, M. Heber, S. Danzenbächer, S. Hüfner, S. L. Molodtsov, V. D. P. Servedio, Yu. Kucherenko   +8 more
core   +1 more source

Understanding the Chemical and Electronic Properties of Sub‐Monolayer TiO2 on High Surface Area Silica for Jet Fuel Synthesis Applications

Advanced Functional Materials, EarlyView.
Sub‐monolayer titania grafted onto mesoporous silica enables solvent‐free photocatalytic upgrading of furfural and cyclopentanone into jet fuel precursors. Advanced spectroscopic methods reveal tunable surface speciation, acidity, and bandgaps, enhancing catalytic efficiency.
Mark A. Isaacs, Charalampos Drivas, Arthur Graf, Sasha Kroon, Santosh Kumar, Junxi Liu, Antonio Torres‐Lopez, Cameron Price, Edward Garland, Ines Lezcano‐Gonzalez, Christopher. M. A. Parlett, Vannia C. dos Santos‐Durndell, Lee J. Durndell   +12 more
wiley   +1 more source

Depletion of density of states near Fermi energy induced by disorder and electron correlation in alloys

, 1999
We have performed high resolution photoemission study of substitutionally disordered alloys Cu-Pt, Cu-Pd, Cu-Ni, and Pd-Pt. The ratios between alloy spectra and pure metal spectra are found to have dips at the Fermi level when the residual resistivity is
Altshuler, Altshuler, Banhart, Banhart, C.-O. Kim, Chandesris, Cho, Florio, Fuggle, H.-J. Noh, J.-P. Hong, J.-Y. Kim, Mattheiss, Mott, Mårtensson, Mårtensson, Pindor, S.-J. Oh, Sarma, Stocks, Susaki, T.-U. Nahm, W.-G. Park   +22 more
core   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Landau Level Crossings and Extended-State Mapping in Magnetic Two-dimensional Electron Gases

, 2001
We present longitudinal and Hall magneto-resistance measurements of a ``magnetic'' two-dimensional electron gas (2DEG) formed in modulation-doped Zn$_{1-x-y}$Cd$_{x}$Mn$_{y}$Se quantum wells.
A. B. Oparin, A. G. Petukhov, D. D. Awschalom, D. D. Awschalom, D. E. Khmel’nitskii, D. G. Polykov, E. Abrahams, F. D. M. Haldane, F. Evers, H. P. Wei, H. W. Jiang, I. Glozman, I. P. Smorchkova, I. P. Smorchkova, J. A. Gaj, J. G. E. Harris, J. G. E. Harris, J. Jaroszynski, M. Furlan, M. Hayne, M. P. Lilly, N. R. Cooper, N. Samarth, R. B. Laughlin, R. Knobel, R. Knobel, S. A. Crooker, S. D. Sarma, S. J. Papadakis, S. L. Sondhi, S. V. Kravchenko, T. Ando, U. Zeitler, X. Lee   +33 more
core   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Field emission from Luttinger liquids and single-wall carbon nanotubes

, 2001
We develop a theory for the field emission effect in Luttinger liquids and single-wall carbon nanotubes at the level of the energy resolved current distribution. We generalise Fowler-Nordheim relations.
A. O. Gogolin, Alexander O. Gogolin, Andrei Komnik, C. L. Kane, C. Lea, E. M. Lifshits, F. D. M. Haldane, F. Ito, J. W. Gadzuk, J. W. Gadzuk, J.-M. Bonard, J.-M. Bonard, J.-M. Bonard, L. D. Landau, L. V. Keldysh, L. V. Keldysh, M. Bockrath, M. P. A. Fisher, Q. H. Wang, R. Egger, R. Egger, R. H. Fowler, S. J. Tans, V. Meden, Y. Saito   +24 more
core   +1 more source

Illuminating the Origins of Ferroelectric‐Induced Photocurrent and Hole Lifetime Enhancement in BaTiO3 Photoanodes

Advanced Functional Materials, EarlyView.
The use of ferroelectric polarization to enhance photocatalytic and photoelectrocatalytic activity is an innovative, and increasingly studied route to improve the spatial separation of charge carriers and therefore enhance catalytic efficiency. These results demonstrate how the intrinsic properties of a ferroelectric film can extend charge carrier ...
Chloe Forrester, Adriana Augurio, Charlie Henderson, Ji‐Seon Kim, James R. Durrant, Joe Briscoe   +5 more
wiley   +1 more source

Superlattice Delineated Fermi Surface Nesting and Electron-Phonon Coupling in CaC₆

Crystals
The superconductivity of CaC6 as a function of pressure and Ca isotopic composition was revisited using DFT calculations on a 2c–double hexagonal superlattice.
Bruce Wang, Antonio Bianconi, Ian D. R. Mackinnon, Jose A. Alarco   +3 more
doaj   +1 more source