Miller-Bravais indices are a four-index notation system used to represent the orientation of crystal planes in hexagonal crystal systems. This system enhances the traditional three-index Miller indices by adding a fourth index to provide a more accurate description of the unique geometry and symmetry present in hexagonal crystals. The four indices are typically denoted as (h k i l), where 'i' is related to the other three indices through the relationship h + k + i = 0, ensuring consistency in the notation.
congrats on reading the definition of Miller-Bravais Indices. now let's actually learn it.