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cond-mat.mes-hall2000
Detecting Gapless Excitations above Ferromagnetic Domain Walls
Tohru Koma, Masanori Yamanaka
In a two or three dimensional ferromagnetic XXZ model, a low energy excitation mode above a magnetic domain wall is gapless, whereas all of the usual spin wave excitations moving a…
cond-mat.mes-hall2000
Quantization of Hall Conductance in Double Exchange Systems: Topology and Lattice Gauge Field
Atsuo Satou, Masanori Yamanaka
We study quantization conditions of the Hall conductivity for a two dimensional system described by a double exchange Hamiltonian with and without an external magnetic field. This…