Construct Hamiltonians of internal interactions.
F = internal(SpinSystem) F = internal(SpinSystem,iSpins)
This function provides Hamiltonian matrices of internal interaction of
the spin system described by the structure SpinSystem
. If only
SpinSystem
is given, all internal interactions are summed up,
otherwise only those of the spins indicated by iSpins
are
returned.
Internal interactions for this function are all interaction of a spin ''with itself'', i.e. all zero field terms of the pure electron and the nuclear quadrupole interaction of all nuclei
Remember that if SpinSystem.D
is given, all parameters
in
SpinSystem
are ignored!
For an electron-nuclear system AB
, internal(AB,1)
returns the
electronic zero field interactions and internal(AB,2)
the
quadrupole term of the nucleus. See also the examples in the sections
on zfield and nquad.
eeint, hfine, nquad, sham, zeeman, zfield