Patent ID: 8300445
Filing Date: 2012-10-30
Classification: B82Y,G11C

Abstract:
1. A nanowire with perpendicular magnetic anisotropy, wherein when a parameter Q, calculated by a saturation magnetization per unit area, a domain wall thickness and a spin polarizability of a ferromagnet that is a constituent material of the nanowire, has a value of 3×10 8 A/cm 2 ≦Q≦10 9 A/cm 2 , a domain wall thickness λ, a width W and a thickness T of the nanowire satisfy the relationship of Equation 10, (wherein, 0</λ≧4), the parameter Q and a domain wall demagnetizing factor N d meets the requirement |N d |×J c in /Q≦ 10 7 /Q (J c in is a critical current density for the magnetic field-free current-induced domain wall displacement has a value of less than 10 7 A/cm 2 ), the N d is a physical quantity that is determined upon the determination of a nanowire width W, and nanowire thickness T and a domain wall thickness λ,