Magnetic phase transition in ɛ-In x Fe2 − x O3 nanowires

Spontaneous magnetization reversal caused by magnetic noise in ε-In0.24Fe1.76O3 nanoparticles

“…The H f value is close to typical values in hard magnetic materials such as Nd 2 Fe 14 B [10]. The H f value can be used to calculate activation volume [8]:…”

“…7). Positions of the S(H) and χ irr (H) maxima are close to coercive field H c = 6 kOe determined from the hysteresis loop [8,9] (Fig. 6).…”

“…where N = 2π is the demagnetizing factor of cylinder and χ = dM/dH is the slope of tangent to demagnetizing curve of magnetic hysteresis loop [8,9] (Fig. 6).…”

Epsilon-phase iron(III) oxide nanowires for a magnetic-resonance spin-current source

“…2). As was shown in study [9], ε In 0.24 Fe 1.76 O 3 nanowires are in the single domain state; therefore, the magnetization and magnetization reversal pro cesses are caused by rotation of the magnetization vec tor determined by the magnetic anisotropy. Indeed, under these conditions, a decrease in the magnetic anisotropy constant would lead to a decrease in the coercivity.…”

“…Indium ions are the substitutional impurity, which is embedded in the octahedral positions of iron ions. The synthesis and certification of the nanowires were described in detail in studies [7][8][9].…”