تقرير
Phonon Scattering Mechanism in Thermoelectric Materials Revised via Resonant X-ray Dynamical Diffraction
| العنوان: | Phonon Scattering Mechanism in Thermoelectric Materials Revised via Resonant X-ray Dynamical Diffraction |
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| المؤلفون: | Valério, Adriana, Penacchio, Rafaela F. S., Estradiote, Maurício B., Cantarino, Marli R., Garcia, Fernando A., Morelhão, Sérgio L., Rafter, Niamh, Kycia, Stefan W., Calligaris, Guilherme A., Remédios, Cláudio M. R. |
| المصدر: | MRS Communications, 1-7 (2020) |
| سنة النشر: | 2020 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science |
| الوصف: | Engineering of thermoelectric materials requires an understanding of thermal conduction by lattice and electronic degrees of freedom. Filled skutterudites denote a large family of materials suitable for thermoelectric applications where reduced lattice thermal conduction attributed to localized low-frequency vibrations (rattling) of filler cations inside large cages of the structure. In this work, a multi-wavelength method of exploiting X-ray dynamical diffraction in single crystals of CeFe$_4$P$_{12}$ is presented and applied to resolve the atomic amplitudes of vibrations. The results suggest that the vibrational dynamics of the whole filler-cage system is the actual active mechanism behind the optimization of thermoelectric properties. Comment: 14 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1557/mrc.2020.37 |
| URL الوصول: | http://arxiv.org/abs/2006.12747 |
| رقم الأكسشن: | edsarx.2006.12747 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1557/mrc.2020.37 |
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