Proceedings of the International School of Physics "Enrico Fermi.", Volume 59N. Zanichelli, 1953 - Nuclear physics |
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Page 474
... width of the applied field or the NMR frequency . At a given temperature the smallest line - width was always observed with the resultant local field along the a - direction . It is this minimum line - width whose temperature ...
... width of the applied field or the NMR frequency . At a given temperature the smallest line - width was always observed with the resultant local field along the a - direction . It is this minimum line - width whose temperature ...
Page 506
... width divergence should be ~ } for H > ns and for x < ry . However we must remember that the line - width measures a sum over wave vectors and hence includes significant contributions at least out to 2 or 3 times x . With this in mind ...
... width divergence should be ~ } for H > ns and for x < ry . However we must remember that the line - width measures a sum over wave vectors and hence includes significant contributions at least out to 2 or 3 times x . With this in mind ...
Page 640
... width will differ . The magnitude of such a line - width anisotropy tells us directly the degree of anisotropy of the spin fluctuations . The analysis of the F , and Fu line - widths in K , MnF ,, in this connection , was therefore ...
... width will differ . The magnitude of such a line - width anisotropy tells us directly the degree of anisotropy of the spin fluctuations . The analysis of the F , and Fu line - widths in K , MnF ,, in this connection , was therefore ...
Contents
Interpretation of the NMR linewidth in terms of Kdependent | 3 |
Dynamics | 8 |
The meanfield approximation | 10 |
Copyright | |
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angle anisotropy antiferromagnet applied approach approximation assume axis becomes behaviour calculated central close components consider constant contribution correlation correlation function corresponding coupling critical point crystal curve defined density dependence derived described determined direction discussed dynamic effect energy equal equation example expected experimental experiments exponents expression fact factor field fluctuations follows frequency given gives Hamiltonian homogeneous function increases indicated interaction ions Ising Journ lattice Lett limit line-width magnetic measurements mode motion Note nuclear observed obtained occurs order parameter parallel phase transition Phys plot possible potential predictions present properties range region relation relaxation resonance respectively response rotation scaling scaling hypothesis scaling power scattering shows simple spin STANLEY static structure Table temperature temperature-dependence theory tion variables vector wave zero