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

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Page 119

We will recount in some detail the reasons for , and the structure of , the Kondo

divergence in standard perturbation theory . We will then

method of restoring the applicability of standard infinite - order perturbation

theory .

We will recount in some detail the reasons for , and the structure of , the Kondo

divergence in standard perturbation theory . We will then

**describe**Abricosov ' smethod of restoring the applicability of standard infinite - order perturbation

theory .

Page 169

... simply wrong , because then not all the particles derive from incident plane

waves ( * ) . We

detailed derivation is given in ref . [ 7 ] . One considers the following matrix

element : L X .

... simply wrong , because then not all the particles derive from incident plane

waves ( * ) . We

**describe**only very briefly the processing of eq . ( 64 ) ; thedetailed derivation is given in ref . [ 7 ] . One considers the following matrix

element : L X .

Page 288

7b ) . Then from symmetry arguments , we know that , in general , the crossing of

the two bands will be removed by s d mixing , the d Bloch states y taking an s

character y ' ( and vice versa ) . It seems indeed that one can

...

7b ) . Then from symmetry arguments , we know that , in general , the crossing of

the two bands will be removed by s d mixing , the d Bloch states y taking an s

character y ' ( and vice versa ) . It seems indeed that one can

**describe**in this way...

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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