@prefix sampledescriptionvocabulary1: <https://purls.helmholtz-metadaten.de/skosmos/sdv/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix ns0: <http://server/unset-base/> .

sampledescriptionvocabulary1:Hexagonal
  skos:prefLabel "Hexagonal" ;
  skos:narrower sampledescriptionvocabulary1:HexagonalClosePacked, sampledescriptionvocabulary1:SimpleHexagonal ;
  skos:definition "1. A hexagonal lattice is a type of lattice in the hexagonal system, characterized by high symmetry. It consists of lattice points located at the vertices of hexagonal prisms and at the centers of their hexagonal faces. The lattice is described by two parameters: the edge length of the base and the height of the prism. The unit cell in this lattice is a parallelepiped with a rhombus-shaped base, and its edges are used as coordinate axes to specify the position of atoms in the lattice. (ScienceDirect, AI generated definition based on: General Physics, 1967). 2. A hexagonal lattice is a regular arrangement of points or atoms in a two-dimensional structure that forms a honeycomb-like pattern with sixfold symmetry axes. It can be characterized by a hexahedral prism and is commonly found in materials such as graphene, which is composed entirely of carbon atoms arranged in a hexagonal lattice structure. (https://taylorandfrancis.com/knowledge/Engineering_and_technology/Engineering_support_and_special_topics/Hexagonal_lattice/)"^^ns0:None ;
  skos:broader sampledescriptionvocabulary1:LatticeType, sampledescriptionvocabulary1:LatticeSystem, sampledescriptionvocabulary1:CrystalStructure ;
  a skos:Concept .

sampledescriptionvocabulary1:HexagonalClosePacked
  skos:prefLabel "Hexagonal close packed" ;
  a skos:Concept ;
  skos:broader sampledescriptionvocabulary1:Hexagonal .

sampledescriptionvocabulary1:SimpleHexagonal
  skos:prefLabel "Simple hexagonal" ;
  a skos:Concept ;
  skos:broader sampledescriptionvocabulary1:Hexagonal .

sampledescriptionvocabulary1:LatticeType
  skos:prefLabel "Lattice type" ;
  a skos:Concept ;
  skos:narrower sampledescriptionvocabulary1:Hexagonal .

sampledescriptionvocabulary1:LatticeSystem
  skos:prefLabel "Lattice system" ;
  a skos:Concept ;
  skos:narrower sampledescriptionvocabulary1:Hexagonal .

sampledescriptionvocabulary1:CrystalStructure
  skos:prefLabel "Crystal structure" ;
  a skos:Concept ;
  skos:narrower sampledescriptionvocabulary1:Hexagonal .