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Related papers: Electronic structure of InSb (001), (110), and (11…

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The electronic and atomic structure of several $(1\times 1)$ terminations of the (110) polar orientation of SrTiO$_3$ surface are systematically studied by first-principles calculations. The electronic structure of the two stoichiometric…

Materials Science · Physics 2009-11-10 Francois Bottin , Claudine Noguera , Fabio Finocchi

While many photoemission studies have dealt with both the bulk band structure and various surface states and resonances, the unoccupied electronic structure above the Fermi level of the Bi(111) surface has not yet been measured directly…

Materials Science · Physics 2013-01-22 Christopher Bronner , Petra Tegeder

We have performed x-ray photoemission spectroscopy on the system of noncentrosymmetric superconductor, Li$_2$(Pd$_x$Pt$_{1-x}$3)B. For Li$_2$Pt$_3$B, we found 2 major peaks with 2 other weak components, and the band calculations were in…

Li2Pd3B is known to be superconducting, while the isotypical Li2Pt3B compound is not. Electronic structures of Li2Pd3B and Li2Pt3B have been calculated in order to obtain an insight into this surprising difference, through an analysis of…

Superconductivity · Physics 2009-11-11 Sharat Chandra , S. Mathi Jaya , M. C. Valsakumar

The electronic band structure and Fermi surface of ZrTe_3 was precisely determined by linearly polarized angle-resolved photoelectron spectroscopy. Several bands and a large part of the Fermi surface are found to be split by 100-200 meV…

Strongly Correlated Electrons · Physics 2015-05-13 Moritz Hoesch , Xiaoyu Cui , Kenya Shimada , Corsin Battaglia , Shin-ichi Fujimori , Helmuth Berger

Systematic angle-resolved photoemission spectroscopy (ARPES) experiments have been carried out to investigate the bulk and (100) surface electronic structures of a topological mixed-valence insulator candidate, YbB6. The bulk states of YbB6…

Studies of the Fermi surface modification after in-situ covering NbP semimetal with heavy elements Pb and Nb ultrathin layers were performed by means of angle-resolved photoemission spectroscopy (ARPES). First, the electronic structure was…

We investigate the electronic structures of the alloyed Bi$_{1-x}$Sb$_x$ compounds based on first-principle calculations including spin-orbit coupling (SOC), and calculate the surface states of semi-infinite systems using maximally…

Mesoscale and Nanoscale Physics · Physics 2009-08-14 Hai-Jun Zhang , Chao-Xing Liu , Xiao-Liang Qi , Xiao-Yu Deng , Xi Dai , Shou-Cheng Zhang , Zhong Fang

We measure the electron conductivity of the surface states and the subsurface space charge layer originating from the Si(111)-4x1-In reconstruction as a function of temperature. The conductivity of the surface states drops sharply around…

Materials Science · Physics 2009-11-07 Takashi Uchihashi , Urs Ramsperger

We report on a theoretical study of the electronic structures of InSb and GaSb nanowires oriented along the [001] and [111] crystallographic directions. The nanowires are described by atomistic, spin-orbit inteaction included, tight-binding…

Mesoscale and Nanoscale Physics · Physics 2015-09-08 Gaohua Liao , Ning Luo , Zhihu Yang , Keqiu Chen , H. Q. Xu

We investigate the influence of slab thickness on the electronic structure of the Si(100)-p(2x2) surface in density functional theory (DFT) calculations, considering both density of states and band structure. Our calculations, with slab…

Materials Science · Physics 2017-04-05 Keisuke Sagisaka , Jun Nara , David Bowler

We investigated the electronic structure of the Si(111)--7$\times$7 surface below 20 K by scanning tunneling and photoemission spectroscopies and by density functional theory calculations. Previous experimental studies have questioned the…

Strongly Correlated Electrons · Physics 2021-04-20 S. Modesti , P. M. Sheverdyaeva , P. Moras , C. Carbone , M. Caputo , M. Marsi , E. Tosatti , G. Profeta

We present a comprehensive ab initio study of structural, electronic, lattice dynamical and electron-phonon coupling properties of the Bi(111) surface within density functional perturbation theory. Relativistic corrections due to spin-orbit…

High resolution angle resolved photoemission measurements and band structure calculations are carried out to study the electronic structure of BaMnSb$_2$. All the observed bands are nearly linear that extend to a wide energy range. The…

By detailed first-principles calculations we show that the Fermi energy and the Rashba splitting in disordered ternary surface alloys (BiPbSb)/Ag(111) can be independently tuned by choosing the concentrations of Bi and Pb. The findings are…

Materials Science · Physics 2015-05-18 H. Mirhosseini , A. Ernst , S. Ostanin , J. Henk

The electronic structure of some low index surfaces for martensitic B19'-TiNi and B19-TiPd were investigated using the full-potential linearized augmented plane wave method. The alteration of the electronic structure upon martensitic…

Condensed Matter · Physics 2007-05-23 S. E. Kulkova , V. E. Egorushkin , J. S. Kim , G. Lee , Y. M. Koo

Heavily electron-doped surfaces of Bi$_2$Se$_3$ have been studied by spin and angle resolved photoemission spectroscopy. Upon doping, electrons occupy a series of {\bf k}-split pairs of states above the topological surface state. The {\bf…

Strongly Correlated Electrons · Physics 2012-04-25 Z. -H. Pan , E. Vescovo , A. V. Fedorov , B. Sinkovic , D. Gardner , S. Chu , Y. S. Lee , G. D. Gu , T. Valla

We use high-resolution angle resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) to investigate the electronic structure of the charge density wave (CDW) system LaSb$_2$. This compound is among an interesting…

We present our angle resolved photoelectron spectroscopy (ARPES) and density functional theory results on quaternary topological insulator (TI) BiSbTe1.25Se1.75 (BSTS) confirming the non-trivial topology of the surface state bands (SSBs) in…

Materials Science · Physics 2023-10-31 H. Lohani , P. Mishra , A. Banerjee , K. Majhi , R. Ganesan , U. Manju , D. Topwal , P. S. Anil Kumar , B. R. Sekhar

Spontaneously broken symmetry in the ground state of Bi-based topological materials can lead to promising Topological superconductors, such as Cu-Bi2Se3, Sr-Bi2Se3 and Nb-Bi2Se3. In recent studies, coexistence of multiple Fermi surface…