Ferromagnetic Domains |
Contents
arrangements p 13 1 9 Synopsis of later chapters p | 15 |
2 3 Physical origin of the anisotropy p 24 2 4 Arbitrary orientation | 40 |
magnetization p 48 3 6 Effect of stresses on magnetic properties p | 53 |
CHAPTER IV | 67 |
domains p 70 4 4 Survey of factors determining domain arrangement p | 73 |
Bitter patterns p 81 4 7 Comparison with theory | 92 |
spin direction within a wall p 94 5 3 Energy in walls p 95 5 4 The width | 103 |
energy p 109 6 3 The effect of internal stresses on domain wall energy p | 110 |
stress centres p | 120 |
theory p 121 6 9 Experiments on the stress theory p 127 6 10 Imperfec | 140 |
producing magnetic viscosity p 150 7 4 Experiments with simple domain | 157 |
wall movements p 165 8 5 Reversible temperature changes p | 168 |
| 175 | |
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Common terms and phrases
alloys angle applied field axis Bozorth calculated changes in magnetization Chapter closing domains coercive force complicated component of magnetization considered cos² crystal axes Curie point demagnetizing field depend direction of magnetization directions of domain domain arrangements domain magnetization domain structure domain walls easy directions eddy currents eddy-current effects equation equilibrium experiment external field ferromagnetic field direction field H free poles frequencies gauss grains hysteresis loop inclusions increase initial susceptibility internal stresses iron K₁ Kersten magnetic moment magnetiza magnetization curve magnetocrystalline anisotropy magnetocrystalline energy magnetostrictive effects magnitude main domains material measurements mechanism method minimum Néel nickel normal obstacles obtained oersteds orientation parallel particles Permalloy permeability Phys plane possible region reversal saturation Shockley shown in fig shows simple sin² single crystals single-crystal Sixtus small fields Snoek specimen spontaneous magnetization Stoner surface energy temperature tension theory tion unit volume values variation wall energy wall movement wire