Evidence of the Non-Magnetic Ordering in TmRu_2Si_2 at Low Temperatures

摘要

The neutron powder diffraction measurements of the TmRu2Si2 compound in the temperature range 0.47-2.5 K have been performed. The obtained results confirm that this compound in low temperature has a tetragonal ThCr2Si2-type crystal structure (space group I4/mmm). The long range magnetic ordering was not detected up to 0.47 K.