Journal or Book Title
Journal of Applied Physics
Radio-frequency measurements of dynamic magnetic susceptibility of various ferromagnets show striking differences between local-moment ferromagnetism (LFM) and weak itinerant ferromagnetism (IFM) ferromagnetic systems. LFMs show a very sharp peak in susceptibility in the vicinity of the Curie temperatureTC that rapidly decreases in amplitude and shifts to higher temperature with the application of a weak dc bias field. In stark contrast, the generally accepted IFM systems show no peak, but rather a broad maximum well below TC. The temperature of this maximum shifts to lower values and the amplitude is suppressed with an applied dc field.
Copyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
American Institute of Physics
Vannette, Matthew D.; Bud'ko, Sergey L.; Canfield, Paul C.; and Prozorov, Ruslan, "Distinguishing local moment versus itinerant ferromagnets: Dynamic magnetic susceptibility" (2008). Ames Laboratory Publications. 206.