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

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Page 121

absolute zero and with impurity spin į a singlet bound state is formed for antiferromagnetic

absolute zero and with impurity spin į a singlet bound state is formed for antiferromagnetic

**coupling**. This bound state is obtained by the obvious method ...Page 171

In the limit of weak

In the limit of weak

**coupling**the dominant terms in the evaluation of the thermal average of the integrals in ( 67 ) are the « unlinked » ones in which F ...Page 204

As we have seen , no complex poles ever arise for the ferromagnetic sign of the

As we have seen , no complex poles ever arise for the ferromagnetic sign of the

**coupling**, yet there exists a bound trial state . To resolve this difficulty ...### What people are saying - Write a review

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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 | |

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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