New view of the occupied band structure of Mo(112)
Author(s) -
Keisuke Fukutani,
Hirokazu Hayashi,
I.N. Yakovkin,
Tula R. Paudel,
Takafumi Habuchi,
Daisuke Hirayama,
Jian Jiang,
Hideaki Iwasawa,
K. Shimada,
Ning Wu,
Evgeny Y. Tsymbal,
Ya. B. Losovyj,
P. A. Dowben
Publication year - 2012
Publication title -
physical review b
Language(s) - English
Resource type - Journals
eISSN - 1538-4489
pISSN - 1098-0121
DOI - 10.1103/physrevb.85.155435
Subject(s) - brillouin zone , condensed matter physics , electronic band structure , fermi surface , physics , reflection symmetry , symmetry (geometry) , reflection (computer programming) , distortion (music) , coupling (piping) , surface (topology) , quasi fermi level , effective mass (spring–mass system) , band gap , semimetal , materials science , quantum mechanics , geometry , mathematics , computer science , programming language , amplifier , superconductivity , optoelectronics , cmos , metallurgy
Wepresentacomprehensiveexaminationoftheoccupiedsurface-weightedbandstructureofMo(112)alongthe two high-symmetry directions of the surface Brillouin zone, both from theoretical and experimental perspectives. The band structures are found to be significantly different for the states along the two high-symmetry directions andforthestateswithevenandoddreflectionparitieswithrespecttothemirrorplanes.Thepresentstudysuggests the existence of a number of surface-weighted bands along both high-symmetry directions. The complexity of the bandstructureneartheFermilevelmayimposepotentialdifficultiesinexperimentaldeterminationoftheelectronphonon coupling parameters based on the effective mass enhancement distortion (or kink) in the energy-band dispersion, in the vicinity of the Fermi level, for several surface resonance bands of Mo(112).
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