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

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Page 152

Now consider H. = H, is a constant applied field and suppose the motion is

periodic or statistically steady state in a co-ordinate frame of

the average of q over space and time. Then the mean of W is – 2 MH, V2s, and

some ...

Now consider H. = H, is a constant applied field and suppose the motion is

periodic or statistically steady state in a co-ordinate frame of

**velocity**V equal tothe average of q over space and time. Then the mean of W is – 2 MH, V2s, and

some ...

Page 177

The upshot is a limiting wall

eq. (7.14) with V, - 0, by (7.15) W, *: V, - max|y(0E./62,)/24 MI. In the limiting case

of an isolated plane wall, for which eq. (3.1) holds, one finds [13, 14] (7.15a) V., ...

The upshot is a limiting wall

**velocity**for steady-state motion given, according toeq. (7.14) with V, - 0, by (7.15) W, *: V, - max|y(0E./62,)/24 MI. In the limiting case

of an isolated plane wall, for which eq. (3.1) holds, one finds [13, 14] (7.15a) V., ...

Page 184

The plot of wall

s compared to 550 m/s predicted from eq. (7.25). Sufficiently far beyond the peak,

the

The plot of wall

**velocity**vs. drive (fig. 40) showed a linear rise to a peak at 270 m/s compared to 550 m/s predicted from eq. (7.25). Sufficiently far beyond the peak,

the

**velocity**became saturated at 110 m/s in good agreement with 88 m/s ...### 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