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

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Page 160

M (3) •- - -Y- — —- X Z | O •- -- O --> --> | M,--M. <- - Ó -- --> wall plot ne-front

shows a principal section of a magnetic configuration having a

origin of a, y, z co-ordinates. The domain-wall center lies on the (a, z)-plane and

the ...

M (3) •- - -Y- — —- X Z | O •- -- O --> --> | M,--M. <- - Ó -- --> wall plot ne-front

shows a principal section of a magnetic configuration having a

**Bloch point**at theorigin of a, y, z co-ordinates. The domain-wall center lies on the (a, z)-plane and

the ...

Page 161

Schematic illustration of a bubble domain with two

of an in-plane magnetic field Ho. as Ar-o near a

finite region including it is finite, so it is physically acceptable. The total exchange

...

Schematic illustration of a bubble domain with two

**Bloch points**in the presenceof an in-plane magnetic field Ho. as Ar-o near a

**Bloch point**, the total energy of afinite region including it is finite, so it is physically acceptable. The total exchange

...

Page 162

half of a simple Bloch line without

that reversing the twist sense in one half of the Bloch line lowers the energy

unless the added energy of the necessary

half of a simple Bloch line without

**Bloch points**is unfavorably oriented. It followsthat reversing the twist sense in one half of the Bloch line lowers the energy

unless the added energy of the necessary

**Bloch point**is too great. Numerical ...### What people are saying - Write a review

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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