## Proceedings of the International School of Physics "Enrico Fermi.", Volume 70N. Zanichelli, 1978 - Nuclear physics |

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Page 236

2 1 As these damping terms are related to relaxation processes, they will be

neglected in the remainder of this work. In the equilibrium

magnetization will have neither a variation in time or space and eq. (5.10)

reduces to the ...

2 1 As these damping terms are related to relaxation processes, they will be

neglected in the remainder of this work. In the equilibrium

**orientation**, themagnetization will have neither a variation in time or space and eq. (5.10)

reduces to the ...

Page 244

The equilibrium

to zero. Setting Eo = 0 implies that the equilibrium value of 0 is 7/2. Setting E. = 0

with 0 = 7/2 yields the relation (5.49) MoHo sin (p — ph) + + 2* M: sin 24 + K, ...

The equilibrium

**orientation**of M is found by setting both Eo and E. cosec 0 equalto zero. Setting Eo = 0 implies that the equilibrium value of 0 is 7/2. Setting E. = 0

with 0 = 7/2 yields the relation (5.49) MoHo sin (p — ph) + + 2* M: sin 24 + K, ...

Page 259

The equilibrium direction for the spins at large negative values of y is in the

negative a:-direction, while at large positive values of y the

spins is in the positive a:-direction. The Bloch wall will lie in the (a, 2)-plane and

the ...

The equilibrium direction for the spins at large negative values of y is in the

negative a:-direction, while at large positive values of y the

**orientation**of thespins is in the positive a:-direction. The Bloch wall will lie in the (a, 2)-plane and

the ...

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### Contents

Gruppo fotografico dei partecipanti al Corso fuori testo | 1 |

Octahedral sites | 3 |

Hightemperature results | 4 |

Copyright | |

34 other sections not shown

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### Common terms and phrases

absorption angle anisotropy constants anisotropy energy annealing antiferromagnetic Appl axis Bloch lines Bloch point Bloch wall Bloch-line bubble calculated coefficients compensation point contribution Cošt crystal field cubic Curie temperature curve d-site diamagnetic dichroism direction of magnetization domain wall effects electron energy levels equation exchange experimental Fe2+ Fe3+ ions ferromagnetic resonance formula unit frequency gadolinium Gd3+ ion GELLER GILLEo given Hamiltonian interaction ion moments Journ lattice constant line width linear magnetic field magnetic ions magnetoelastic magnetostriction constants measurements neutron diffraction observed octahedral octahedral sites orientation parameter phonons photoinduced photomagnetic Phys plane polarization rare-earth ions rare-earth iron garnets relaxation respectively room temperature rotation sample shown in fig specimens spin wave spontaneous magnetization sublattice substitution symmetry temperature dependence temperature variation tetrahedral theory tion torque transition uniaxial anisotropy valence values vector velocity yttrium iron garnet