Condensed Matter & Materials Physics
5 terms
Carbon Nanotubes
Condensed Matter & Materials Physics
nm (Nanotube Diameter)
Cylindrical nanostructures composed of rolled-up single-layer graphene sheets possessing exceptional mechanical strength and electrical conductivity.
Chiral Vector C_h = n a₁ + m a₂
Conduction Band
Condensed Matter & Materials Physics
eV (Energy Levels)
The range of electron energy bands higher than the valence band where electrons are delocalized and free to move throughout the crystal lattice to carry electric current.
E ≥ E_c (Populated by free charge carriers)
Creep
Condensed Matter & Materials Physics
s⁻¹ (Creep Strain Rate)
The slow, time-dependent permanent plastic deformation of a solid material subjected to long-term mechanical stresses below its yield strength, accelerated at elevated temperatures.
ε_creep = A σ^n e^(-Q / (R T)) (Power law creep)
Crystal Structure
Condensed Matter & Materials Physics
Å or nm (Lattice Parameters a, b, c)
The ordered, periodic three-dimensional arrangement of atoms, ions, or molecules in a crystalline solid.
Crystal Structure = Lattice + Basis
Curie-Weiss Law
Condensed Matter & Materials Physics
Dimensionless (Magnetic Susceptibility)
A thermodynamic law describing the magnetic susceptibility of a ferromagnetic or antiferromagnetic material in its paramagnetic phase above the Curie temperature T_C.
χ_m = C / (T - T_C) (for T > T_C)