- Conference date: 14–15 June 2011
- Location: San Diego, (USA)
There have been a number of experimental results that show that the magnetomechanical coupling in certain magnetostrictive materials do not satisfy the thermodynamic Maxwell relations. These startling results have come from different laboratories including the Naval Surface Warfare Center, Carderock Division and the University of Maryland, College Park. If these experiments are correct, and the Maxwell relations are violated, the experiments represent the very important discovery of magnetic materials that do obey the standard thermodynamic laws.
In this paper, the experimental evidence will be presented along with the theoretical analysis demonstrating that the experimental data is not consistent with the existence of the standard thermodynamic potentials, and demonstrating how magnetomechanical cycles may be constructed by which energy can be extracted from the ambient temperature environment. Experimental measurements of an extraction of energy in such magnetomechanical cycles will also be presented.
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