• 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 (640 words) - 06:31, 24 September 2024
  • 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 (1,491 words) - 05:59, 24 September 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 (1,417 words) - 21:42, 1 September 2024
  • 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
  • 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
  • {\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
  • Wavevectors outside the Brillouin zone simply correspond to states that are physically identical to those states within the Brillouin zone. Special high symmetry...
    37 KB (4,835 words) - 14:38, 19 August 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...
    47 KB (6,913 words) - 21:30, 12 October 2024
  • Thumbnail for Reciprocal lattice
    point (so essentially same phase at all the direct lattice points). The Brillouin zone is a Wigner–Seitz cell of the reciprocal lattice. Reciprocal space (also...
    32 KB (5,485 words) - 22:43, 6 September 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) - 07:50, 15 October 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
  • 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 (1,578 words) - 21:57, 2 October 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 (5,083 words) - 23:14, 4 August 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 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...
    266 KB (27,780 words) - 23:57, 20 October 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
  • in the Bloch momentum vector k → {\displaystyle {\vec {k}}} in the Brillouin zone; then the symmetry constraints must hold for all k → {\displaystyle...
    22 KB (2,639 words) - 16:44, 9 October 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...
    91 KB (9,125 words) - 15:19, 12 October 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 (1,522 words) - 15:52, 12 September 2024
  • 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) - 12:32, 29 August 2024
  • excited, because unless the sum of q2 and q3 points outside of the Brillouin zone the momentum is conserved and the process is normal scattering (N-process)...
    63 KB (8,360 words) - 20:48, 18 October 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 (7,081 words) - 22:07, 18 May 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) - 15:36, 12 October 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 (7,350 words) - 03:42, 26 August 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
  • 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...
    13 KB (1,654 words) - 19:09, 9 October 2024
  • classification of crude oil (futures trading symbol BZ on the NYMEX exchange) Brillouin zone, in mathematics and solid-state physics, a uniquely defined primitive...
    2 KB (335 words) - 17:13, 2 November 2022
  • 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
  • Thumbnail for Truncated octahedron
    faujasite-type of zeolite crystals. In solid-state physics, the first Brillouin zone of the face-centered cubic lattice is a truncated octahedron. The truncated...
    19 KB (1,755 words) - 17:04, 21 August 2024