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

### From inside the book

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Page 15

We shall look for self - consistent solutions based on one - electron functions

which are eigensolutions of a Hamiltonian

1 + J S ( qor ) . 0 , where the equation is written to allow for two - component wave

...

We shall look for self - consistent solutions based on one - electron functions

which are eigensolutions of a Hamiltonian

**operator**of the form H = - 02 + V ( r ) }1 + J S ( qor ) . 0 , where the equation is written to allow for two - component wave

...

Page 153

This suggests that , in spite of the indirect electron interaction via the spin of the

impurity , it should be possible to define « in » and « out » creation

which , applied to the target ground state , generate exact one - electron in and

out ...

This suggests that , in spite of the indirect electron interaction via the spin of the

impurity , it should be possible to define « in » and « out » creation

**operators**which , applied to the target ground state , generate exact one - electron in and

out ...

Page 154

yi ( r , t ) corresponds to the

Hamiltonian from a given initial pre - collision

( r , t ) is the

post ...

yi ( r , t ) corresponds to the

**operator**at time t evolving under the unperturbedHamiltonian from a given initial pre - collision

**operator**at time t = - 0 . Similarly yo( r , t ) is the

**operator**which propagating under Ho will eventually turn into thepost ...

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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