## Proceedings of the International School of Physics "Enrico Fermi.", Volume 37N. Zanichelli, 1967 - Nuclear physics |

### From inside the book

Results 1-3 of 42

Page 406

If the

particle energies , then it is clear that all the large renormalization processes ,

correlation effects , etc , must be taken into account before the spin - wave theory

is set ...

If the

**parameters**are the bare interactions and the unrenormalized single -particle energies , then it is clear that all the large renormalization processes ,

correlation effects , etc , must be taken into account before the spin - wave theory

is set ...

Page 418

If we choose the band width

contains two

electrons per atom n . In an insulating magnetic material there is only one

If we choose the band width

**parameter**B as our unit of energy , the modelcontains two

**parameters**: the interaction strenght , C . / B and the number ofelectrons per atom n . In an insulating magnetic material there is only one

**parameter**, the ...Page 431

( 76 ) , to find the range of values of the

stable , and then solve ( 78 ) for a few values of the

for various Q to find the Q minimizing ( 82 ) . 4 ' 3 Electron - electron interaction

and ...

( 76 ) , to find the range of values of the

**parameters**of v , for which the SDW isstable , and then solve ( 78 ) for a few values of the

**parameters**in that range andfor various Q to find the Q minimizing ( 82 ) . 4 ' 3 Electron - electron interaction

and ...

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### Contents

LOMER Band theory and magnetism | 1 |

JACCARINO Studies of the hyperfine interaction in transi | 39 |

P W ANDERSON and W L MCMILLAN Multiplescattering | 50 |

Copyright | |

25 other sections not shown

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### Common terms and phrases

alloys amplitude analytic Anderson approximation assume average band becomes Born bound calculation complex computed condition conduction consider contribution correct correlation corresponding coupling curve defined density depends determined discussed effect electrons energy equation exchange expected expression fact factor Fermi Fermi level ferromagnetic field function given gives Hamiltonian host metal impurity atom included integral interaction interesting lattice limit localized magnetic matrix element means metals method moments momentum normal obtained occur operator orbital particle perturbation Phys physical plane polarization poles positive possible potential present problem properties range relation replaced represent resonance scattering screening Sect seems shift shown similar simple solution spin structure surface temperature theory tion transition metals usual wave wave functions write written zero