Definition

1. Noun:
   • A three-dimensional geometric arrangement of atoms, molecules, or ions composing a crystal: A crystal lattice is the highly ordered, repeating structural framework that defines the shape and properties of a crystalline solid.

Usage

• The term "crystal lattice" is used in physics, chemistry, and materials science to describe the fundamental architecture of crystalline materials.
• It is a countable noun (e.g., "a crystal lattice," "different crystal lattices").

Examples

• Noun:
  • The diamond's exceptional hardness is a direct result of its strong, tetrahedral crystal lattice.
  • Scientists used X-ray diffraction to determine the exact crystal lattice of the new semiconductor material.
  • Defects in the crystal lattice can significantly alter a material's electrical conductivity.

Advanced Usage

• "Lattice constant" or "lattice parameter": A specific measurement describing the physical dimensions of a unit cell within the crystal lattice.
  • The research paper detailed the precise lattice constants for the compound.
• "Lattice structure": Often used synonymously with "crystal lattice" to emphasize the arrangement.
  • The mineral's unique lattice structure gives it its characteristic cleavage.

Variants and Related Words

• Lattice (n): The regular, repeating arrangement of points in space. "Crystal lattice" is a specific type of lattice.
  • The atoms sit at specific points on the lattice.
• Unit cell (n): The smallest repeating unit that, when stacked in three dimensions, generates the entire crystal lattice.
  • The unit cell of this crystal is cubic.
• Bravais lattice (n): One of the 14 possible distinct lattice types in three-dimensional crystallography.
  • The crystal belongs to the face-centered cubic Bravais lattice.

Synonyms

• Space lattice: A synonym emphasizing the three-dimensional spatial arrangement.
• Crystal structure: While very closely related, this term can sometimes encompass not just the lattice points but also the basis (the atoms/molecules associated with each point).

Related Phrases and Concepts

• Lattice vibration: The oscillation of atoms around their fixed positions within the crystal lattice.
  • Heat is conducted through the material via lattice vibrations.
• Lattice defect: An imperfection in the periodic structure of the lattice, such as a vacancy or dislocation.
  • Introducing specific lattice defects can improve the metal's strength.

Noun

1. a 3-dimensional geometric arrangement of the atoms or molecules or ions composing a crystal