Abstract
The magneto-caloric effect (MCE) is a possible route to more efficient heating and cooling of residential and commercial buildings. The search for improved materials is important to the development of a viable MCE based heat pump technology. We have calculated the magnetic structure of a candidate MCE material: Ni 2 MnGa. The density of magnetic states was calculated with the Wang Landau statistical method utilizing energies fit to those of the locally self-consistent multiple scattering method. The relationships between the density of magnetic states and the field induced adiabatic temperature change and the isothermal entropy change are discussed.
Original language | English |
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Article number | 07A942 |
Journal | Journal of Applied Physics |
Volume | 109 |
Issue number | 7 |
DOIs | |
State | Published - Apr 1 2011 |
Funding
Work performed at the Oak Ridge National Laboratory, sponsored by the Laboratory Directed Research and Development Program (ORNL), by the Mathematical, Information, and Computational Sciences Division; Office of Advanced Scientific Computing Research, and by the Division of Materials Sciences and Engineering; Office of Basic Energy Sciences (US DOE).