• Thumbnail for Brillouin zone
    In mathematics and solid state physics, the first Brillouin zone (named after Léon Brillouin) is a uniquely defined primitive cell in reciprocal space...
    11 KB (639 words) - 12:17, 16 September 2023
  • Thumbnail for Wigner–Seitz cell
    primitive cell of the reciprocal lattice in momentum space is called the Brillouin zone. The concept of Voronoi decomposition was investigated by Peter Gustav...
    16 KB (1,487 words) - 18:56, 31 July 2023
  • Thumbnail for Umklapp scattering
    outside the first Brillouin zone. If a material is periodic, it has a Brillouin zone, and any point outside the first Brillouin zone can also be expressed...
    5 KB (557 words) - 10:08, 31 July 2023
  • {\displaystyle \mathbf {k} } far outside the first Brillouin zone are still reflected back into the first Brillouin zone. See the external links section for sites...
    8 KB (1,092 words) - 15:25, 13 January 2024
  • Thumbnail for Léon Brillouin
    necessary." Brillouin function Brillouin limit Brillouin scattering Brillouin zone Brillouin theorem Brillouin doublet Brillouin flow Brillouin–Wigner formula...
    15 KB (1,418 words) - 20:40, 31 December 2023
  • than the size of the first Brillouin zone, which results in a portion of the Fermi surface lying in the second (or higher) zones. As with the band structure...
    13 KB (1,687 words) - 21:41, 22 May 2024
  • Wavevectors outside the Brillouin zone simply correspond to states that are physically identical to those states within the Brillouin zone. Special high symmetry...
    36 KB (4,771 words) - 01:13, 8 July 2024
  • Thumbnail for Density of states
    integration over the whole domain of the Brillouin zone can be reduced to a 48-th part of the whole Brillouin zone. As a crystal structure periodic table...
    36 KB (5,578 words) - 08:28, 18 March 2024
  • such wavevectors defines the first Brillouin zone. Additional Brillouin zones may be defined as copies of the first zone, shifted by some reciprocal lattice...
    46 KB (6,752 words) - 17:19, 6 July 2024
  • Thumbnail for Reciprocal lattice
    this process, one can infer the atomic arrangement of a crystal. The Brillouin zone is a Wigner–Seitz cell of the reciprocal lattice. Reciprocal space (also...
    32 KB (5,461 words) - 20:01, 27 June 2024
  • the bulk electronic wave functions, which are integrated in over the Brillouin zone, in a similar way that the genus is calculated in geometric topology...
    28 KB (4,112 words) - 13:19, 28 December 2023
  • Zones, a virtualization feature of the Solaris operating system Zone (convex polytope), in geometry/algorithmic, a kind of convex polytope Brillouin zone...
    6 KB (834 words) - 20:08, 22 October 2023
  • Thumbnail for Bloch's theorem
    Brillouin zone. Therefore, if we restrict k to the first Brillouin zone, then every Bloch state has a unique k. Therefore, the first Brillouin zone is...
    36 KB (6,052 words) - 07:43, 21 May 2024
  • Thumbnail for Direct and indirect band gaps
    each characterized by a certain crystal momentum (k-vector) in the Brillouin zone. If the k-vectors are different, the material has an "indirect gap"...
    11 KB (1,579 words) - 16:17, 16 July 2024
  • Thumbnail for Wannier function
    cells in the crystal; The sum on k includes all the values of k in the Brillouin zone (or any other primitive cell of the reciprocal lattice) that are consistent...
    16 KB (2,047 words) - 00:48, 24 August 2023
  • Thumbnail for Band gap
    atoms arranged on a square lattice. Energy splitting occurs at the Brillouin zone edge for one-dimensional situations because of a weak periodic potential...
    23 KB (2,484 words) - 00:28, 11 June 2024
  • Thumbnail for Electronic properties of graphene
    are six locations in momentum space, the vertices of its hexagonal Brillouin zone, divided into two non-equivalent sets of three points. The two sets...
    44 KB (5,081 words) - 00:14, 14 July 2024
  • Thumbnail for Su–Schrieffer–Heeger model
    {1}{2}}{\frac {\mathrm {d} \phi _{k}}{\mathrm {d} k}},} integrated over the Brillouin zone k ∈ { − π , π } {\displaystyle k\in \{-\pi ,\pi \}} , produces different...
    9 KB (1,517 words) - 03:04, 8 July 2024
  • Thumbnail for Sinc function
    a function whose Fourier transform is the indicator function of the Brillouin zone of that lattice. For example, the sinc function for the hexagonal lattice...
    21 KB (2,961 words) - 04:50, 19 May 2024
  • {\displaystyle \mathbf {k} } is a wavevector in the reciprocal-space (Brillouin zone), and u n k ( r ) {\displaystyle u_{n\mathbf {k} }(\mathbf {r} )} is...
    15 KB (2,556 words) - 01:34, 10 January 2024
  • Thumbnail for Graphene
    conduction band is vacant. The two bands touch at the zone corners (the K point in the Brillouin zone), where there is a zero density of states but no band...
    262 KB (27,376 words) - 07:49, 18 July 2024
  • Thumbnail for High-temperature superconductivity
    has shown that nesting occurs at four points in the antiferromagnetic Brillouin zone where spin waves exist and that the superconducting energy gap is larger...
    93 KB (9,318 words) - 21:36, 12 July 2024
  • lattice and the Brillouin zone often belong to a different space group than the crystal of the solid. High-symmetry points in the Brillouin zone belong to different...
    34 KB (7,311 words) - 20:02, 6 February 2024
  • chemical element argon, currently Ar The center of a hexagonal face of the Brillouin zone of a hexagonal lattice, in physics "A", a poem by twentieth century...
    12 KB (1,645 words) - 21:59, 20 June 2024
  • Thumbnail for Photonic crystal
    gap in each direction becomes wider and the second one is to make the Brillouin zone more similar to sphere. However, the former is limited by the available...
    61 KB (7,088 words) - 22:07, 18 May 2024
  • in the Bloch momentum vector k → {\displaystyle {\vec {k}}} in the Brillouin zone; then the symmetry constraints must hold for all k → {\displaystyle...
    15 KB (1,940 words) - 19:34, 3 December 2023
  • Thumbnail for Transition metal dichalcogenide monolayers
    located at the non-equivalent K points (K+ and K−) of the 2D hexagonal Brillouin zone. The interband transitions in the vicinity of the K+ (or K−) point are...
    93 KB (10,303 words) - 03:10, 15 July 2024
  • photon energy, corresponding to the band gaps at critical points of the Brillouin zone. The electroreflectance effect can be used to get a clearer picture...
    21 KB (2,851 words) - 09:18, 31 December 2023
  • which defines the energies of electron orbitals for each point in the Brillouin zone. Ab initio and semi-empirical calculations yield orbital energies, therefore...
    2 KB (231 words) - 23:16, 20 January 2024
  • singularities occur are often referred to as critical points of the Brillouin zone. For three-dimensional crystals, they take the form of kinks (where...
    9 KB (1,412 words) - 03:54, 13 June 2024