TY - JOUR AU - Hui Peng PY - 2026 DA - 2026/05/08 TI - Spin-Electromagnetics JO - Japan Journal of Research VL - 7 IS - 4 AB - The spin of electrons is studied (Spintronics) and applied to, for example, quantum computing. In this article, utilizing UMFT (Universal Mathematical Field Theory), we establish the Spin-Electromagnetics (Spin-EM) from the Coulomb’s law and the spin of electric source. Spin-EM predicts several new effects including the Spin-Lorentz-type force, and Spin-Lagrangian-Lorentz-type force. When experimentally confirmed, the Spin-force would be a NEW FORCE. The UMFT has been established and utilized to derive the Maxwell electromagnetics (Maxwell-EM) and Maxwell-type gravity (Gravito-EM). UMFT shows that mathematical identities lead to physical dualities, such as the duality between Maxwell-EM, Gravito-EM, and Spin-EM. The well-known-concepts, effects, and phenomena of Maxwell-EM may be directly converted to that of Spin-EM. The Maxwell-EM, Gravito-EM, and Spin-EM are all derived from UMFT and thus, they are dual to each other, and can be unified in the frame of UMFT. SN - 2690-8077 UR - https://dx.doi.org/10.33425/2690-8077.1235 DO - 10.33425/2690-8077.1235