DOI: https://doi.org/10.26089/NumMet.v17r444

Spin-density correlator and its Fourier transform in the dynamic spin-fluctuation theory

Authors

  • G.V. Paradezhenko
  • N.B. Melnikov
  • B.I. Reser

Keywords:

scattering function
spin fluctuations
dynamic susceptibility
magnetic neutron scattering

Abstract

A formula relating the magnetic contribution to a polarized neutron scattering cross-section with the Fourier transform of the spin-density correlator is derived. A method of calculating the spin-density correlator and its Fourier transform in the dynamic spin-fluctuation theory is described. Calculation formulas and Fortran program modules are presented. By the example of iron, it is shown that the numerical results obtained for the Fourier transform of the spin-density correlator are in good agreement with experimental data.

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Published

2016-11-11

Issue

Vol. 17 (2016): Issue 4.

Section

Section 1. Numerical methods and applications

Author Biographies

G.V. Paradezhenko

Lomonosov Moscow State University
• PhD Student

N.B. Melnikov

Lomonosov Moscow State University
• Associate Professor

B.I. Reser

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