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

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Page 50

Practical

substituted garnets used are in the ferrimagnetic ground state, and, as pointed

out in subsect. III-3'5, it is possible to calculate quite accurately the

thermomagnetic curves ...

Practical

**calculations**for low substitutions. For practical applications, thesubstituted garnets used are in the ferrimagnetic ground state, and, as pointed

out in subsect. III-3'5, it is possible to calculate quite accurately the

thermomagnetic curves ...

Page 85

The complicated level structure of most ions, however, prevents an explicit

outlined in part IV. 4. – Temperature dependence of the anisotropy constants.

The thermal ...

The complicated level structure of most ions, however, prevents an explicit

**calculation**, except for simple electronic configurations for which the theory isoutlined in part IV. 4. – Temperature dependence of the anisotropy constants.

The thermal ...

Page 348

For the

oc X, SN, (ii, é.)* + const, r=1 where the constant part, not depending on 6., is of

no interest here and the proportionality factor is A, - (A) + A )/2. Equations (20) ...

For the

**calculation**of photoinduced dichroism, from eq. (13) we obtain (20b) &soc X, SN, (ii, é.)* + const, r=1 where the constant part, not depending on 6., is of

no interest here and the proportionality factor is A, - (A) + A )/2. Equations (20) ...

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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