This property takes a half-integer value for fermions and an integer value for bosons.
In 2D systems with broken inversion symmetry, this property couples to momentum to split energy bands in the Rashba effect. Scattering cross sections are usually averaged over possible values of this property for incoming particles and summed over its values for outgoing particles. For an atomic nucleus, this property is typically denoted with a capital I. A change in this property for one atom in a hydrogen molecule switches it from orthohydrogen to parahydrogen, while a forbidden transition that changes this property in atomic hydrogen is the source of the 21-centimeter line. Hyperfine structure results from coupling between this property of a nucleus and an electron's total angular momentum. This property takes a half-integer value for fermions and an integer value for bosons. For 10 points, name this quantum form of intrinsic angular momentum.
In 2D systems with broken inversion symmetry, this property couples to momentum to split energy bands in the Rashba effect.
spin [prompt on angular momentum; prompt on intrinsic angular momentum] &lt;Physics&gt;