A generic tight-binding model for monolayer, bilayer and bulk MoS2
نویسندگان
چکیده
منابع مشابه
A tight-binding model for MoS2 monolayers.
We propose an accurate tight-binding parametrization for the band structure of MoS2 monolayers near the main energy gap. We introduce a generic and straightforward derivation for the band energies equations that could be employed for other monolayer dichalcogenides. A parametrization that includes spin-orbit coupling is also provided. The proposed set of model parameters reproduce both the corr...
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We show that the lattice contribution to the thermal conductivity of MoS2 strongly dominates the carrier contribution in a broad temperature range from 300 to 800K. Since theoretical insight into the lattice contribution is largely missing, though it would be essential for materials design, we solve the Boltzmann transport equation for the phonons self-consistently in order to evaluate the phon...
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Y. Aierken,1 H. Sahin,1,* F. Iyikanat,2 S. Horzum,1 A. Suslu,3 B. Chen,3 R. T. Senger,2 S. Tongay,3 and F. M. Peeters1 1Department of Physics, University of Antwerp, 2610, Antwerp, Belgium 2Department of Physics, Izmir Institute of Technology, 35430 Izmir, Turkey 3School for Engineering of Matter, Transport and Energy Arizona State University, Tempe Arizona, 85287, USA (Received 23 October 2014...
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Half-metallicity in materials has been a subject of extensive research due to its potential for applications in spintronics. Ferromagnetic manganites have been seen as a good candidate, and aside from a small minority-spin pocket observed in La(2-2x)Sr(1+2x)Mn(2)O(7) (x = 0.38), transport measurements show that ferromagnetic manganites essentially behave like half metals. Here we develop robust...
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We report the influence of uniaxial tensile mechanical strain in the range 0-2.2% on the phonon spectra and bandstructures of monolayer and bilayer molybdenum disulfide (MoS2) two-dimensional crystals. First, we employ Raman spectroscopy to observe phonon softening with increased strain, breaking the degeneracy in the E' Raman mode of MoS2, and extract a Grüneisen parameter of ~1.06. Second, us...
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ژورنال
عنوان ژورنال: AIP Advances
سال: 2013
ISSN: 2158-3226
DOI: 10.1063/1.4804936