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arxiv: 0911.4016 · v1 · pith:RKFFNY3Enew · submitted 2009-11-20 · ❄️ cond-mat.str-el

Elastic properties of FeSi

classification ❄️ cond-mat.str-el
keywords temperatureelasticfesirangeanomalouslybehaviorchangeconstants
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Measurements of the sound velocities in a single crystal of FeSi were performed in the temperature range 4-300 K. Elastic constants $C_{12}$ and $C_{44}$ deviate from a quasiharmonic behavior at high temperature; whereas, $C_{12}$ increases anomalously in the entire range of temperature, indicating a change in the electron structure of this material

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