119Sn Mössbauer studies of the DyAgSn and DyAuSn compounds

Hyperfine interactions studied by 119Sn Mössbauer spectroscopy in TbAuSn and TmAuSn compounds

“…We believe that the main reason for the field distribution appearance is the hybridization between 4f Tb and 5d Au states. It is worth pointing out that similar behavior was found for HoAuSn [2] and DyAuSn [4].…”

“…The CaIn 2 -type of structure has a random distribution of Au and Sn atoms, whereas in LiGaGe-type of structure all the atoms occupy unique well-defined lattice sites described elsewhere [4]. Both models give almost the same X-ray powder diffraction intensities, and it is impossible to choose correct crystallographic structure basing only on polycrystalline samples.…”

“…Both models give almost the same X-ray powder diffraction intensities, and it is impossible to choose correct crystallographic structure basing only on polycrystalline samples. In this case Mössbauer spectroscopy can be useful [4].…”

“…These properties are related to the hybridization between the rare earth 4f-electron states and the conduction electron states. Many of the RAuSn compounds order magnetically at low temperatures showing complex structures due to interplay between magnetic interactions and crystal field effects [2][3][4][5][6][7][8][9].…”

“…119 Sn Mössbauer spectroscopy, as a microscopic technique, was applied to characterise the local electronic properties of both compounds and was used to monitor the temperature evolution of the transferred hyperfine magnetic field H hf at the diamagnetic tin ions. This method is also sensitive enough to get insight into possible crystallographic order of Au and Sn ions over the "In" sites within the CaIn 2 -type of structure [4].…”