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

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Page 24

Strictly speaking, at compensation the materials are ferrimagnets with

spontaneous magnetization. From a group-theoretical point of view, which is the

fundamental way to look at magnetically ordered magnetic materials, each

magnetic ...

Strictly speaking, at compensation the materials are ferrimagnets with

**zero**spontaneous magnetization. From a group-theoretical point of view, which is the

fundamental way to look at magnetically ordered magnetic materials, each

magnetic ...

Page 222

as the two surface modes have

slightly larger than unity, the first two modes are surface modes, whose position

shifts to lower energies and whose moment decreases rapidly. The energy

possessed ...

as the two surface modes have

**zero**moment and will not be excited. For Aslightly larger than unity, the first two modes are surface modes, whose position

shifts to lower energies and whose moment decreases rapidly. The energy

possessed ...

Page 404

For instance in GdIG at the compensation point, the total magnetization is truly

et al. [30] studied the rotation of YaH'es_,Ga,O1s for several values of a, and ...

For instance in GdIG at the compensation point, the total magnetization is truly

**zero**, but the rotation is substantial and shows no particular anomaly. MATTHEwset al. [30] studied the rotation of YaH'es_,Ga,O1s for several values of a, and ...

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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