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

### From inside the book

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Page 52

The principle of our final method is to follow as closely as possible the

calculation of the density of states for a single scatterer . Such a

calculation can be done in the following way . We introduce a Greenian in

ordinary space ...

The principle of our final method is to follow as closely as possible the

**correct**calculation of the density of states for a single scatterer . Such a

**correct**calculation can be done in the following way . We introduce a Greenian in

ordinary space ...

Page 53

By actually constructing G + in this case , we show that this gives a

answer for the density of states in a sphere of radius R . We say « a »

answer , because as pointed out by DEWITT [ 5 , 4 ] to the order of the scattering

effects the ...

By actually constructing G + in this case , we show that this gives a

**correct**answer for the density of states in a sphere of radius R . We say « a »

**correct**answer , because as pointed out by DEWITT [ 5 , 4 ] to the order of the scattering

effects the ...

Page 65

Formally , just as the

31 ) \ H — E ( 1 + 8 ) = 1 . H « « : — E ( Sax : + 842 ) = 0 where Sax = [ # qadr –

dan ' , we may define a Greenian G ' by ( 2 . 32 ) [ E ( 1 + 3 ) — H ] G ' = 1 , which

will ...

Formally , just as the

**correct**secular equation for the nonorthonormal set is ( 2 .31 ) \ H — E ( 1 + 8 ) = 1 . H « « : — E ( Sax : + 842 ) = 0 where Sax = [ # qadr –

dan ' , we may define a Greenian G ' by ( 2 . 32 ) [ E ( 1 + 3 ) — H ] G ' = 1 , which

will ...

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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