Danqi HE, Mingxu WEI, Ruizhi LIU, Zhixin TANG, Pengcheng ZHAI, Wenyu ZHAO. Heavy-Fermion YbAl3 Materials: One-step Synthesis and Enhanced Thermoelectric Performance [J]. Journal of Inorganic Materials, 2023, 38(5): 577
- Journal of Inorganic Materials
- Vol. 38, Issue 5, 577 (2023)
1. XRD patterns of SPS1, SPS2 and MQA-SPS samples
2. Microstructures of SPS1, SPS2 and MQA-SPS samples(a-c) FESEM images of (a) MQA-SPS, (b) SPS1, and (c) SPS2; (d) Enlarged FESEM image of the rectangular region in (c)
3. Multi-scale microstructures in SPS1(a) HRTEM image of YbAl3 nanocrystals with 5-20 nm in diameter; (b) HRTEM image of nanoscale strip-like noncrystal in YbAl3 crystals; (c, d) HRTEM images of high-density distortions in YbAl3 crystals with insets showing IFFT images of the marked regions
4. Temperature dependence of (a) electrical conductivity and (b) Seebeck coefficient for SPS1, SPS2 and MQA-SPS with inset showing the temperature dependence of power factor
5. Temperature dependences of (a) thermal conductivity, (b) carrier thermal conductivity, (c) lattice thermal conductivity, and (d) ZT values for the samples for SPS1, SPS2 and MQA-SPS
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