Direct evidence for the magnetic ordering of Nd ions in NdMn2Si2 and NdMn2Ge2 by high resolution inelastic neutron scattering期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Direct evidence for the magnetic ordering of Nd ions in NdMn₂Si₂ and NdMn₂Ge₂ by high resolution inelastic neutron scattering

Authors:	T Chatterji J CombetB Frick A Szyula

Institution:	^a Institut Laue-Langevin, 6 rue Joules Horowitz, BP 156, 38042 Grenoble Cedex 9, France ^b Institute of Physics, Jagellonian University, 30-059 Krakow, Reymonta 5, Poland

Abstract:	We have investigated the low energy nuclear spin excitations in NdMn₂Si₂ and NdMn₂Ge₂ by high resolution inelastic neutron scattering. Previous neutron diffraction investigations gave ambiguous results about Nd magnetic ordering at low temperatures. The present element-specific technique gave direct evidence for the magnetic ordering of Nd ions. We found considerable difference in the process of the Nd magnetic ordering at low temperature in NdMn₂Si₂ and NdMn₂Ge₂. Our results are consistent with those of magnetization and recent neutron diffraction measurements.

Keywords:	Neutron scattering Hyperfine interaction Magnetic ordering Back-scattering neutron spectrometer
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