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

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Page 59

except at energies where J , obeys the outer

have a pole . These are the eigenenergies . . . As we have discussed already ,

we will use outgoing

that ...

except at energies where J , obeys the outer

**boundary**condition , where a , willhave a pole . These are the eigenenergies . . . As we have discussed already ,

we will use outgoing

**boundary**conditions . We cannot emphasize too stronglythat ...

Page 138

10 Since this

does not apply , and so o ( k , r ) can have singularities in the k - plane . In fact ,

this

10 Since this

**boundary**condition is not k - independent , Poincaré ' s theoremdoes not apply , and so o ( k , r ) can have singularities in the k - plane . In fact ,

this

**boundary**condition suggests that q , is nonanalytic in the half plane Imk > 0 .Page 436

10m ) , the Fermi surface has a finite area of contact with the magnetic zone

neck radius is shown as a function of g in Fig . 11 for 2 ' = 0 . 1 . For the particular

...

10m ) , the Fermi surface has a finite area of contact with the magnetic zone

**boundary**in contradiction to earlier suppositions of critical contact [ 54 , 66 ) . Theneck radius is shown as a function of g in Fig . 11 for 2 ' = 0 . 1 . For the particular

...

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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