Introduction to Solid State Physics |
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Results 1-3 of 19
Page 545
... magnon ; such events make possible the experimental determination of magnon spectra . 18 The result ( 41 ) is the correct leading term on the Heisenberg model . To go further we need to use the full dispersion relation ; to carry out ...
... magnon ; such events make possible the experimental determination of magnon spectra . 18 The result ( 41 ) is the correct leading term on the Heisenberg model . To go further we need to use the full dispersion relation ; to carry out ...
Page 547
... magnon ( Fig . 15 ) . If the incident neutron has wavevector k , and is scattered to kn ' with the creation of a magnon of wavevector k , then by conservation of crystal momentum kn = kn ' + k + G , where G is a reciprocal lattice ...
... magnon ( Fig . 15 ) . If the incident neutron has wavevector k , and is scattered to kn ' with the creation of a magnon of wavevector k , then by conservation of crystal momentum kn = kn ' + k + G , where G is a reciprocal lattice ...
Page 572
... magnon contribution and bÃ3 is the phonon contribution . Problems 1. Magnon dispersion relation . Derive the magnon dispersion relation ( 27 ) for a spin S on a simple cubic lattice , z = 6. Hint : Show first that ( 21a ) is replaced by ...
... magnon contribution and bÃ3 is the phonon contribution . Problems 1. Magnon dispersion relation . Derive the magnon dispersion relation ( 27 ) for a spin S on a simple cubic lattice , z = 6. Hint : Show first that ( 21a ) is replaced by ...
Contents
CRYSTAL STRUCTURE | 1 |
CRYSTAL DIFFRACTION AND THE RECIPROCAL LATTICE | 43 |
CRYSTAL BINDING | 95 |
Copyright | |
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absolute zero absorption alkali halide alloy antiferromagnet applied field atoms axis boundary Brillouin zone calculated Chapter charge components conduction band conduction electrons crystal structure cubic density dielectric constant dielectric function diffraction dipole direction dislocation dispersion relation effective mass elastic electric field electron concentration electron gas energy gap equation equilibrium excited exciton experimental F center Fermi surface ferroelectric ferromagnetic Figure free electron frequency function given heat capacity hole impurity interaction ionic lattice constant lattice points low temperatures magnetic field magnetic moment magnon metal modes momentum motion nearest neighbors neutron normal nuclear optical orbital paramagnetic particle phase phonon Phys plane polarization positive potential primitive cell quantum reciprocal lattice vector region resonance result room temperature scattering semiconductor shown in Fig space specimen sphere superconducting theory thermal tion transition unit vacancy valence band velocity wavefunction wavelength wavevector x-ray