This article is cited in 8 papers

Debye–Waller factor in neutron scattering by ferromagnetic metals

G. V. Paradezhenko^a, N. B. Melnikov^a, B. I. Reser<sup>b

a</sup> Lomonosov Moscow State University, Moscow, Russia
^b Mikheev Institute of Metal Physics, RAS, Ekaterinburg, Russia

Abstract: We obtain an expression for the neutron scattering cross section in the case of an arbitrary interaction of the neutron with the crystal. We give a concise, simple derivation of the Debye–Waller factor as a function of the scattering vector and the temperature. For ferromagnetic metals above the Curie temperature, we estimate the Debye–Waller factor in the range of scattering vectors characteristic of polarized magnetic neutron scattering experiments. In the example of iron, we compare the results of harmonic and anharmonic approximations.

Keywords: neutron scattering, lattice vibration, Debye–Waller factor, spin–density correlation, ferromagnetic metal.

Received: 24.03.2017
Revised: 22.04.2017

DOI: 10.4213/tmf9374

 English version: Theoretical and Mathematical Physics, 2018, 195:1, 572–583

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