The Scretching–Planck and Scretching–Maxwell–Dirac Equations Applied to Ferromagnetism, Antiferromagnetism and Altermagnetism

This work explores ferromagnetic, antiferromagnetic, and altermagnetic systems using Scretching–Planck (SP) reciprocal-wavevector lengths and scaling relations. Through lattice Hamiltonians, atomic Hartree–Fock calculations, molecular exchange models, and experimental material data, it examines spin splitting, magnetic compensation, transport anisotropy, exchange interactions, and magnetization. The results demonstrate consistency with established quantum-mechanical identities and selected numerical models, while highlighting the need for further computational validation to determine the independent predictive value of the SP/SMD framework.