Study of highly correlated electron system by angle resolved thermoelectric power measurement, using Corbino disk-type temperature gradient

由于电子各向异性在高度相关电子系统中的重要性，我们的目标是开发一种新的方法，使我们能够准连续地测量角度分辨热电功率。一开始，我们把这种方法应用到有机导体上。此外，我们还尝试建立新的方法来测定费米表面各向异性，研究绝缘相附近金属态的异常输运性质和测定超导性的对称性。事实上，我们成功地观察到有机材料的角度相关热电功率，这反映了费米表面的各向异性。

We aimed to develop the novel method that enable us to measure angle-resolved thermoelectric power quasi-continuously, motivated by the importance of electronic anisotropy in highly correlated electron system. At the beginning we applied this method to organic conductors. Moreover we tried to construct novel method of determining Fermi surface anisotropy, studying anomalous transport properties of metallic state near insulating phase and determining symmetry of superconductivity. Indeed we succeeded in observing angle-dependent thermoelectric power of organic materials, which reflect anisotropy of Fermi surface.