A magnetic unit cell repeats the ordered magnetic moments as well as the atomic positions. It can exceed the chemical primitive unit cell when translations interchange oppositely ordered magnetic sublattices. For a simple-cubic Néel pattern , translations preserving the sum's parity form an FCC lattice with conventional parameter twice the chemical spacing and a two-spin primitive basis.
A macroscopically planar crystal boundary characterized by a crystallographic orientation. Its Miller index specifies that orientation; visible facet area depends on surface thermodynamics and growth kinetics. A low surface energy and a slow growth rate are different properties.
A solid containing many differently oriented crystalline crystal grains. grain boundaries impose compatibility and act as transport paths or sinks for mobile defects.
A region with an approximately common crystal orientation, separated from other such regions by grain boundaries.
A measure of crystal grain elongation. It changes directional boundary spacings and can influence anisotropic defect transport independently of average grain size.
A measure of the spatial scale of crystal grains. Its definition must be stated for elongated crystal grains; size, aspect ratio and orientation distribution have distinct physical effects.
Close packing of triangular layers with ABAB stacking. Its nearest-layer geometry agrees with face-centered cubic stacking, but the further-layer registry differs.
A cubic crystal structure with lattice sites at cube corners and face centres. Its close-packed layers are (111) planes, stacked ABCABC.
The fixed-volume equilibrium crystal shape obtained by minimizing orientation-dependent surface free energy. Facet support-plane distances are proportional to their interfacial free energies under the construction assumptions.
An equilibrium construction for a supported particle that modifies the Wulff construction using particle-support and support-medium interfacial energies. The support truncates the corresponding free-particle shape.
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SOLID is an acronym that represents a set of five design principles aimed at making software designs more understandable, flexible, and maintainable. These principles are widely used in object-oriented programming and design. Here’s a brief overview of each principle: 1. **S - Single Responsibility Principle (SRP)**: A class should have only one reason to change, meaning that it should have only one job or responsibility.
