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Group 63 Seminar on Magnetism, XXXVIII
(MIT Digital Computer Laboratory, 1953-03-16)
This memo is a summary of a Group 63 seminar on magnetism. Topics include the phenomenon of superexchange, Hund's rule, the exchange effect, ferrites, and ferrimagnetism.
Ad Hoc Conference on FeNi₃
(MIT Digital Computer Laboratory, 1953-03-25)
The undersigned continued the discussion on FeNi₃ initiated by Dudley Buck at the seminar on magnetism, the meaning of order-disorder and entropy were examined. Hysteresis loops, saturation magnetization and Curie point ...
Group 63 Seminar on Magnetism, LIV
(MIT Digital Computer Laboratory, 1953-06-11)
This memo is a summary of a Group 63 seminar on magnetism. Topics include a paper presented at the 1953 Spring meeting of The American Physical Society by C. L. Hogan.
Nucleation of Domains of Reverse Magnetization and Switching Characteristics of Magnetic Materials
(MIT Digital Computer Laboratory, 1953-03-09)
The critical requirements for a ferromagnetic memory core are reviewed. Domains of reverse magnetization must form and grow within a core if its induction is to be reversed. The nature of the nucleation centers for these ...
Group 63 Seminar on Magnetism, XLII
(MIT Digital Computer Laboratory, 1953-03-23)
This memo is a summary of a Group 63 seminar on magnetism. Topics include evaluation of the density of energy states at the top of the Fermi distribution, and binding energies in body-centered transition metals.
Group 63 Seminar on Magnetism, XLIII
(MIT Digital Computer Laboratory, 1953-03-25)
This memo is a summary of a Group 63 seminar on magnetism. Topics include Heusler alloys, the Heisenberg model, the Zener model, the Heisenberg theory of ferromagnetism, and the collective electron theory based on the ...