Essays about: "tight-binding"

Showing result 16 - 20 of 27 essays containing the word tight-binding.

  1. 16. SCC-DFTB for Transition Metals : Tight Binding Parametrisation

    University essay from Uppsala universitet/Institutionen för kemi - BMC

    Author : Simon Colbin; [2018]
    Keywords : ;

    Abstract : .... READ MORE

  3. 17. Simulation of Majorana Bound States in Multi-Band Josephson Junction Nanowires

    University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Author : Georg Wolgast; [2017]
    Keywords : Physics and Astronomy;

    Abstract : Majorana bound states can be created at the ends of semiconducting nanowires using a combination of proximity-induced superconductivity, spin-orbit coupling and a magnetic eld. By adding a Josephson junction to this nanowire, four Majorana bound states can exist at the same time in the system. READ MORE

  4. 18. Carbon Nanotube Raman Spectra Calculations using Density Functional Theory

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Johan Jirlén; Emil Kauppi; [2017]
    Keywords : Density Functional Theory; DFT; Single-Walled Carbon Nanotubes; SWCNTs; Raman; Spectra; VASP;

    Abstract : Utilizing density functional theory (DFT) the Vienna Ab initio Simulation Package (VASP) was used to calculate the Raman spectra for five single-walled carbon nanotubes (SWCNTs) with chiralities (4,4), (6,6), (8,0), (12,0) and (7,1). The radial breathing mode (RBM), when compared with experimental frequencies, shows good correlation. READ MORE

  5. 19. Numerical simulations of quantum transport in semiconductor nanowires

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Matematisk fysik

    Author : Oscar Erlandsson; [2016]
    Keywords : Physics and Astronomy;

    Abstract : The study of electronic transport in chemically synthesized semiconductor nanowires is an active field of research, with potential applications in areas such as quantum computing and nanoelectronics. Motivated by recent experimental progress, we use a simple non-atomistic tight-binding model implemented in open-source software to simulate quantum electronic transport in such nanowires. READ MORE

  6. 20. Tight Binding Modelling of Materials

    University essay from Uppsala universitet/Materialteori

    Author : Raquel Esteban Puyuelo; [2015]
    Keywords : ;

    Abstract : In this project, a parametrized tight binding (TB) code is developed in order to describe the essential physics of real materials using a minimal model. We have used this code to compute the band structure of different materials where the primary inputs are the hopping parameters, obtained from a Nth ordermuffin-tin orbital (NMTO) method. READ MORE