High TC Superconductivity: Lessons to be Learned from Neutron Scattering

  • H. Capellmann
Part of the NATO ASI Series book series (NSSB, volume 218)


In principle neutron scattering is able to provide all information about microscopic lattice properties and magnetic properties. Due to the nuclear interaction ionic structures
$$S({\rm q})\propto\sum_{ij}\langle e^{iq(R^0_t-R^0_j)}\rangle$$
and the dynamics of the ionic displacement-displacement correlation function
$$\sum_{ij}\int e^{iq(R^0_t-R^0_j)}\langle {\rm u}_i(t)\cdot {\rm u}_j(0)\rangle e^{iwt}dt$$
are obtained (R i o are the average ionic positions, u i the displacements).


Short Range Order Spin Wave Amplitude Fluctuation Magnetic Fluctuation Stable Moment 


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Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • H. Capellmann
    • 1
    • 2
  1. 1.Institut Laue LangevinGrenoble CedexFrance
  2. 2.Institut für Theoretische Physik CTechnische Hochschule AachenAachenFederal Republic of Germany

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