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Full-Text Articles in Physical Sciences and Mathematics
Study Of The Electronic Properties Of Some Ytterbium Filled Skutterudites By Magnetic Susceptibility And X-Ray Absorption And Tin-119 Mössbauer Spectroscopy, Fernande Grandjean, Gary J. Long, Bernard M. Mahieu, Ji Hui Yang, Gregory P. Meisner, Donald T. Morelli
Study Of The Electronic Properties Of Some Ytterbium Filled Skutterudites By Magnetic Susceptibility And X-Ray Absorption And Tin-119 Mössbauer Spectroscopy, Fernande Grandjean, Gary J. Long, Bernard M. Mahieu, Ji Hui Yang, Gregory P. Meisner, Donald T. Morelli
Chemistry Faculty Research & Creative Works
Magnetic susceptibility, ytterbium LIII-edge x-ray absorption and tin-119 Mössbauer spectral measurements have been carried out to probe the electronic structure of ytterbium and tin in the filled or partially filled skutterudite compounds, YbyCo4Sb12-xSnx, over a range of x and y values. The ytterbium valence obtained from the magnetic susceptibility and ytterbium LIII-edge x-ray absorption measurements is in excellent agreement and clearly reveals an evolution from intermediate valence ytterbium for x=0 to nearly divalent ytterbium for x=0.8. This evolution parallels an increase in the unit cell volume and hence …
Magnetic And Mössbauer Spectral Study Of Erfe₁₁Ti And Erfe₁₁Tih, Cristina Piquer, Raphäel P. Hermann, Fernande Grandjean, Gary J. Long, Olivier Isnard
Magnetic And Mössbauer Spectral Study Of Erfe₁₁Ti And Erfe₁₁Tih, Cristina Piquer, Raphäel P. Hermann, Fernande Grandjean, Gary J. Long, Olivier Isnard
Chemistry Faculty Research & Creative Works
The influence of the insertion of hydrogen into the crystal lattice of ErFe11Ti upon its spin reorientation was investigated. It was found that the insertion of hydrogen into ErFe11Ti to form ErFe11TiH expanded the lattice by 1% and increased the Curie temperature by 56 K. The presence of one titanium near neighbor in the environment of an iron site decreased the hyperfine field by ~2T and changed the isomer shift by ~0.05 mm/s.