Spin Configuration in Antiferromagnetic Domain Walls of the NiO-Type Crystals

摘要: A calculation is carried out to determine in what way the spin axes vary antiferromagnetic domain wall of NiO-type crystal. The problem can be written a form variation calculus minimize sum exchange energy, elastic and magnetic anisotropy energy region. Dividing lattice into four sublattices, spatial change direction each sublattice determined as function coordinate for all possible types wall. wall-width stored are estimated, using an constant MnO, about 80 4 erg/cm 2 {001} NiO, 9 20 MnO. {110} has width (1+( J '/ )) 1/2 times large those wall, where ' coefficients interaction among neighbours, respectively. In ideal crystal, such walls metastable. When pair made approach other, ...