2016/01/28 by P. Alexeev, Pavel Alexeev, Konstantin Glazyrin +11
Earth and Planetary Sciences · Engineering · Physics and Astronomy · #FOS: Physical sciences #High-pressure geophysics and materials #Intermetallics and Advanced Alloy Properties #Materials Science (cond-mat.mtrl-sci) #Rare-earth and actinide compounds #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.1601.07731
This paper has been withdrawn by the author due to a crucial error in fig. 1 Author Sergeev has been removed
openalex publication_date 2016/01/28 · arxiv created 2016/02/19 · arxiv updated 2016/02/22 · openalex created_date 2017/01/13 · openalex updated_date 2026/07/28
We present a comparative study of the unfilled CoSb3 and FeSb3 skutterudites and report on their compressibility studied by high-pressure synchrotron X-ray diffraction. The equation of state for FeSb3 was received for the first time. The third order Birch- Murnaghan isothermal equations of state were fitted to the experimental data in the pressure ranges atm-34 GPa for CoSb3 and atm-14 GPa for FeSb3. Bulk moduli of 95(5) GPa and 86(4) GPa have been obtained for CoSb3 and FeSb3, respectively. The bulk modulus of FeSb3 is in a contrast by about 30% with literature value obtained indirectly. Anomaly was observed in the diffraction pattern of CoSb3 at the pressures 34.4-39.6 GPa which is most probably reasoned by structure transition.