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README.md

Graphene (2_Graphene)

In this tutorial we show how to perform calculations for (1) metallic/semi-metallic systems, a (2) low-dimensional (2D) system, and (3) a spin-polarized system.

Running the exercise

Enter each sub-directory in numerical order, and follow the detailed instructions in each README file.

  • 0_cutoff
    • View an input file for a supercell and visualize it using xcrysden.
    • Determine the convergence with respect to the kinetic energy cutoff
  • 1_ksmear
    • Determine the convergence with respect to the k-point mesh and smearing
  • 2_vacuum
    • Test convergence with respect to the cell size/vacuum spacing.
  • 3_alat
    • Determine the theoretical lattice parameter
  • 4_bands
    • Compute the band structure
  • 5_DOS
    • Compute the density of states.
  • 6_projected_DOS
    • Project the DOS onto atomic orbitals.
  • 7_projected_bands
    • Analyse the band structure in terms of atomic orbitals
  • 8_nanoribbon
    • Investigate spin-polarization in a graphene nanoribbon (unfinished).