Calculation of intrinsic coercivity of magnetic domain walls in perfect crystals

摘要: The critical field strength at which a classical domain wall moves through perfect ferromagnetic crystal of simplified structure is calculated as function the ratio between anisotropy energy K and coupling C , taking into account discrete nature spins. When approaches intrinsic pinning becomes appreciable with fields approaching when \gg . For K/C \geq 2/3 has thickness one atomic distance thus resembles ferroelectric wall.