Debye–Waller Factor in Neutron Scattering by Ferromagnetic Metals
| Autor: | G. V. Paradezhenko, Nikolai B. Melnikov, B. I. Reser |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
Condensed matter physics Scattering Astrophysics::High Energy Astrophysical Phenomena Anharmonicity Statistical and Nonlinear Physics Neutron scattering 01 natural sciences 010305 fluids & plasmas Cross section (physics) Ferromagnetism 0103 physical sciences Curie temperature Neutron Debye–Waller factor 010306 general physics Mathematical Physics |
| Zdroj: | Theoretical and Mathematical Physics. 195:572-583 |
| ISSN: | 1573-9333 0040-5779 |
| DOI: | 10.1134/s0040577918040098 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|