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

### From inside the book

Results 1-3 of 10

Page 156

(4.24)(4.25) (with H. = 0) reduce to the case of a harmonic oscillator with Döring's

O classical effective wall

components of complex susceptibility for a thick multi-domain platelet of ...

(4.24)(4.25) (with H. = 0) reduce to the case of a harmonic oscillator with Döring's

O classical effective wall

**mass**(27ty” A.) . Figure 19 shows the real and imaginarycomponents of complex susceptibility for a thick multi-domain platelet of ...

Page 182

This oscillatory motion is unstable whenever the

perturbation of the wall Fig. 39. – Theoretical velocity vs. momentum or time for a

...

This oscillatory motion is unstable whenever the

**mass**is negative, for a negative**mass**can easily be seen to imply that any infinitesimal initial wavelikeperturbation of the wall Fig. 39. – Theoretical velocity vs. momentum or time for a

...

Page 184

The wall moment is stiff in these regions; consequently they have little

density, typically 1 to 2 times greater than the classical Döring

they bear little kinetic energy. The wall moments reorient more easily within Bloch

-line ...

The wall moment is stiff in these regions; consequently they have little

**mass**density, typically 1 to 2 times greater than the classical Döring

**mass**[44], andthey bear little kinetic energy. The wall moments reorient more easily within Bloch

-line ...

### What people are saying - Write a review

We haven't found any reviews in the usual places.

### Contents

Gruppo fotografico dei partecipanti al Corso fuori testo | 1 |

Octahedral sites | 3 |

Hightemperature results | 4 |

Copyright | |

34 other sections not shown

### Other editions - View all

### 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 Coºt 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