期刊
MATERIALS TRANSACTIONS
卷 55, 期 8, 页码 1209-1214出版社
JAPAN INST METALS & MATERIALS
DOI: 10.2320/matertrans.E-M2014803
关键词
thermoelectric material; half-Heusler alloy; zirconium nickel tin compound; X-ray diffraction; photoemission spectroscopy; electronic band structure calculation
资金
- JSPS [23360279, 24760536]
- Grants-in-Aid for Scientific Research [26420664, 23360279, 24760536] Funding Source: KAKEN
We investigated the electronic and local crystal structures of the sintered half-Heusler ZrNiSn alloy by synchrotron radiation photoemission spectroscopy (SR-PBS), synchrotron radiation X-ray powder diffraction (SR-XRD) measurements, and electronic band structure calculations to clarify mechanisms leading to improvements in the thermoelectric properties of materials. In contrast to the predicted semiconductor-like electronic structure, the SR-PES results show a pseudo-gap at the Fermi level, and the SR-XRD analysis reveals an interstitial Ni disorder in the half-Heusler structure. An improvement in the thermoelectric properties can be achieved by material design based on the pseudo-gap electronic structure of half-Heusler ZrNiSn-based alloys.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据