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

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Page 137

According to BLOCH, the constant value p = 0 or a for the azimuthal angle

ensures V. M = 0 and Ha = 0 everywhere. Equation (2.2) then reduces to (2.4) w,

- A(d0/dy)* + K sin” 0. Fig. 1. – Co-ordinate axes. The profile 0,(y) of the

According to BLOCH, the constant value p = 0 or a for the azimuthal angle

ensures V. M = 0 and Ha = 0 everywhere. Equation (2.2) then reduces to (2.4) w,

- A(d0/dy)* + K sin” 0. Fig. 1. – Co-ordinate axes. The profile 0,(y) of the

**Bloch****wall**is ...Page 174

A

Periodic array. — Consider an infinite periodic arrangement of positive vertical ot-

lines lying on a

the ...

A

**Bloch**line is called positive or negative according to the sign of t. Zo. 7'2.Periodic array. — Consider an infinite periodic arrangement of positive vertical ot-

lines lying on a

**wall**parallel to the (a, z)-plane. When a field H. = H, is applied,the ...

Page 259

Spin wave scattering in a magnetic-domain wall. The dynamic response of the

electronic spins in a domain wall has been a topic of considerable interest for

some time. WINTER [77] has evaluated the excitation spectrum of the

and ...

Spin wave scattering in a magnetic-domain wall. The dynamic response of the

electronic spins in a domain wall has been a topic of considerable interest for

some time. WINTER [77] has evaluated the excitation spectrum of the

**Bloch wall**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