JMP  Vol.5 No.8 , May 2014
Bose-Einstein Condensation of Confined Magnons in Nanostructures
ABSTRACT

A number of diverse kinds of magnetic experiments are shown to lead to the observation of a Bose-Einstein condensation of magnons in some nanostructures, especially in Fe and in Co/Pt. The experiments include 1) the measurement of magnetic aftereffect, 2) measurements of Néel’s fluctuation field, including an estimate of activation volume, 3) the measurement of the energy gap which provides a lower limit on the BEC temperature, 4) using Lagrange multipliers in the quantum thermodynamics of magnons, and 5) the observation of a visible anomaly in the Bloch T3/2 law for the temperature dependence of magnetization of nanostructured ferromagnets.


Cite this paper
Bennett, L. and Torre, E. (2014) Bose-Einstein Condensation of Confined Magnons in Nanostructures. Journal of Modern Physics, 5, 693-705. doi: 10.4236/jmp.2014.58081.
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