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Exchange demagnetization

Here iC is the intrinsic anisotropy constant due to the crystalline anisotropy. After the demagnetization in the longest direction, k is the shape-dependent constant (for an infinite cylinder k = 1.38), M is the exchange constant, and R the particle radius. An infinite cylinder with only shape anisotropy gives... [Pg.176]

Hence, if the crystal is initially in a magnetically ordered state at (lattice) temperature T (hot lattice + cold spins), but is then demagnetized under adiabatic conditions (q = 0), the entropy of spin disordering must be drawn from the crystal lattice (because no heat can exchange with the surroundings), and the lattice temperature drops ... [Pg.184]

See other pages where Exchange demagnetization is mentioned: [Pg.120] [Pg.38] [Pg.38] [Pg.38] [Pg.43] [Pg.68] [Pg.75] [Pg.120] [Pg.38] [Pg.38] [Pg.38] [Pg.43] [Pg.68] [Pg.75] [Pg.366] [Pg.70] [Pg.90] [Pg.257] [Pg.298] [Pg.333] [Pg.334] [Pg.340] [Pg.257] [Pg.57] [Pg.187] [Pg.330] [Pg.354] [Pg.354] [Pg.408] [Pg.438] [Pg.239] [Pg.241] [Pg.247] [Pg.179] [Pg.179] [Pg.1299] [Pg.196] [Pg.291] [Pg.209] [Pg.92] [Pg.117] [Pg.1300] [Pg.681] [Pg.673] [Pg.103] [Pg.77] [Pg.723] [Pg.318] [Pg.383] [Pg.264] [Pg.461]

See also in sourсe #XX -- [ Pg.38 , Pg.68 ]

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Demagnetization

Demagnetizing