A viable mean-field Hamiltonian for modelling itinerant ferromagnetism coexisting with a non-unitary spin-triplet state may after diagonalization be written as:
2.
In the 1960s, Feza became well known for his work on the SU ( 6 ) symmetry that combines the unitary spin SU ( 3 ) of the eightfold way with non-relativistic spin degrees of freedom of quarks.
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