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The bulk modulus of SmFeAs(O0.93F0.07) |
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| Authors: | A. Martinelli M. Ferretti A. Palenzona M. Merlini |
| Affiliation: | 1. LAMIA-INFM-CNR, C.so Perrone 24, 16152 Genova, Italy;2. Dipartimento di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso 31, 16146 Genova, Italy;3. ESRF, European Synchrotron Radiation Facility, 6 Rue Jules Horowitz, BP220, 38043 Grenoble Cedex, France |
| Abstract: | The crystal structure of SmFeAs(O0.93F0.07) has been investigated under high pressure (up to ∼9 GPa) by means of synchrotron powder diffraction analysis followed by Rietveld refinement. The bulk modulus was calculated (K0 = 103 GPa) using a 3rd order Birch–Murnaghan equation of state and resulted in quite good agreement with theoretical calculations reported for LaFeAsO. The linear compressibilities βa and βc are 2.11(4) and 4.56(7) × 10−3 GPa−1, respectively. |
| Keywords: | 61.05.cp 61.05.ks 62.20.de 74.15.Ld |
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