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

### From inside the book

Results 1-3 of 80

Page 52

In this paper we present a new method for calculating the

energy in a multiple - scattering system , which ... to ( 1 ) — in the limit of low

techniques .

In this paper we present a new method for calculating the

**density**of states inenergy in a multiple - scattering system , which ... to ( 1 ) — in the limit of low

**density**and therefore avoids the difficulties of the usual multiple - scatteringtechniques .

Page 447

In that model , the ion cores are spread out into a uniform background of positive

charge of just the right

e . , small ry , the kinetic energy dominates the Coulomb interactions so that the ...

In that model , the ion cores are spread out into a uniform background of positive

charge of just the right

**density**to neutralize ... For very high electron**densities**, i .e . , small ry , the kinetic energy dominates the Coulomb interactions so that the ...

Page 448

overweigh the other two . As one starts out from high

relatively unimportant and AE decreases relative to V . Thus there ultimately must

come a

of ...

overweigh the other two . As one starts out from high

**densities**, V , remainsrelatively unimportant and AE decreases relative to V . Thus there ultimately must

come a

**density**at which a mechanical instability would set in , a horizontal pointof ...

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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