Physics – Mathematical Physics
Scientific paper
2011-02-27
Physics
Mathematical Physics
24 pages; dated June 17, 2010
Scientific paper
The electronic structure (electron charges and spins) of a perfect crystal under external magnetic field is analyzed using the spin-polarized Thomas-Fermi-Dirac-von Weizsacker model. An extension of the classical Cauchy-Born rule for crystal lattices is established for the electronic structure under sharp stability conditions on charge density wave and spin density wave. A Landau-Lifschitz type micromagnetic energy functional is derived.
Weinan E.
Lu Jianfeng
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