Temperature Dependence of Magnetic Inelastic Neutron Scattering in Mn(12%Ge) Alloy

• Authors: J. Jankowska-Kisielińska , K. Mikke , J.J. Milczarek , B. Hennion , V.A. Udovenko
• Languages of publication: EN

Abstracts

EN

A systematic study of temperature dependence of magnetic inelastic neutron scattering for itinerant antiferromagnet Mn(12%Ge) is presented. At low temperatures the experimental data are well described in terms of damped spin waves. This description becomes insufficient at least 150 K below T_{N}. In the temperature range 200-400 K the integrated intensity of distribution for energy transfer 13 THz increases by one third and the shape of the deconvoluted neutron scattering cross-section changes. These changes suggest that ca. 200 K below T_{N} an additional contribution to the inelastic neutron scattering starts to appear and that its origin is different from spin waves.

Keywords

EN

75.30.Ds; 75.50.Ee

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 91
• Issue: 2
• Pages: 483-486

Dates

published

1997-02

Contributors

author

J. Jankowska-Kisielińska

• Institute of Atomic Energy, Świerk, 05-400 Otwock, Poland

author

K. Mikke

• Institute of Atomic Energy, Świerk, 05-400 Otwock, Poland

author

J.J. Milczarek

• Institute of Atomic Energy, Świerk, 05-400 Otwock, Poland

author

B. Hennion

• Laboratoire Léon Brillouin, CEN Saclay, France

author

V.A. Udovenko

• Institute of Physical Metallurgy, Moscow, Russia