2017 Fiscal Year Final Research Report
Dirac electron system with Ca 3d electrons as a high performance thermoelectric material
| Project/Area Number |
16K13664
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Applied materials
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| Research Institution | Nagoya University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
山川 洋一 名古屋大学, 理学研究科, 助教 (60750312)
山影 相 名古屋大学, 理学研究科, 助教 (90750290)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Keywords | 熱電変換 / ディラック電子 / Ca化合物 |
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| Outline of Final Research Achievements |
We studied thermoelectric properties of candidate Dirac electron systems with Ca 3d electrons, which are expected to show high thermoelectric performances. We prepared polycrystalline samples of antiperovskite oxide Ca3XO (X = Sn, Pb) and whisker crystals of one-dimensional Dirac electron system M4SiTe4 (M = Ta, Nb) and discovered that Ca3SnO and M4SiTe4 show high thermoelectric performances. Ternary Ca pnictides CaAgP and CaAgAs are found to be promising candidates to realize ideal line-node Dirac semimetals.
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| Free Research Field |
固体化学
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