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

### From inside the book

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Page 77

The difficulty is , of course , that T does determine G near its pole in E and k

space , but that this information is inadequate to the order of

needed . That this inadequacy is fundamental is an opinion to which we are

inclining more ...

The difficulty is , of course , that T does determine G near its pole in E and k

space , but that this information is inadequate to the order of

**approximation**needed . That this inadequacy is fundamental is an opinion to which we are

inclining more ...

Page 207

These two models have been solved with the Hartree - Fock

using the Green function techniques , and were applied successfully to interpret

various physical problems . Recently an

has ...

These two models have been solved with the Hartree - Fock

**approximation**byusing the Green function techniques , and were applied successfully to interpret

various physical problems . Recently an

**approximation**in the low density limithas ...

Page 208

However , this

whose localized moment has never been observed in any paramagnetic host

metals . Also , the Hartree - Fock theory with reasonable values for the

parameters ...

However , this

**approximation**may be applicable at best to a nickel impurity only ,whose localized moment has never been observed in any paramagnetic host

metals . Also , the Hartree - Fock theory with reasonable values for the

parameters ...

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### Contents

LOMER Band theory and magnetism | 1 |

PHILLIPS Band theory of transition metals | 22 |

JACCARINO Studies of the hyperfine interaction in transi | 39 |

Copyright | |

19 other sections not shown

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### Common terms and phrases

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