Anisotropic Superexchange Interaction and Weak Ferromagnetism.

In "The Physical Review", Second Series, Volume 120, Number 1, October 1, 1960, pp. 91-98, the entire issue in original printed wrappers. A very fine copy, ownership signature. FIRST EDITION. "The discovery of antisymmetric exchange originated in the early 20th century from the controversial observation of weak ferromagnetism in typically antiferromagnetic α-Fe2O3 crystals. In 1958, Igor Dzyaloshinskii provided evidence that the interaction was due to the relativistic spin lattice and magnetic dipole interactions based on Landau's theory of phase transitions of the second kind. In 1960, Toru Moriya identified the spin-orbit coupling as the microscopic mechanism of the antisymmetric exchange interaction. Moriya referred to this phenomenon specifically as the "antisymmetric part of the anisotropic superexchange interacton." The simplified naming of this phenomenon occurred in 1962, when D. Treves and S. Alexander of Bell Telephone Laboratories simply referred to the interaction as antisymmetric exchange. Because of their seminal contributions to the field, antisymmetric exchange is sometimes referred to as the Dzyaloshinskii–Moriya interaction. " ( https://en.wikipedia.org/wiki/Antisymmetric_exchange#History).