Chemical structure and properties of disordered systems

（1）;水星，一个代表性的液体金属，显示超临界区域的金属非金属转换，硒，一个代表性的液体半导体，显示从半导体到金属的转换，然后到绝缘体。这对于研究这些物理性质和这些材料中的原子排列、密度通量或簇形成之间的关系非常重要。在目前的研究中，我们获得了一些关于超临界汞和硒结构的短、中和长距离结构的有趣结果，并使用了格勒诺布尔和春季ESRF的设施-Nishiharima作为强X射线来源。在超离子导体玻璃与玻璃过渡有关的远离子导体转换不能被观察到更大的离子导体。在高频率地区，无论如何，离子状态的贡献相对较小，而且预计要观察这种非线性放松。在这一年中，DieldRelaxat的测量 ... More ion for AgI-Aggone University up to the glass transition temperature over the f\range from 1 MHZ to 1 GHz的ion for AgI-AgPO D23 y D2 have been made at the Bourgogne University up to the glass transition temperature over the f\range from 1 MHZ to 1 GHz。从我们获得的结果中，我们大量地讨论了玻璃中氧化物和卤化物的集中流动。We have also made some preliminary measurements on bromine NMR in an aqueous solution of Oracle D22的温度范围从房间温度到高于100弧度。3）。The alkali Metal-Mercury Alloy Systems展示有趣的电子性能，这是最低的热电功率。有人强烈建议，即中等范围的化学品顺序将电荷转移到常量原子之间与这些属性有关。在今年，我们测量了液体Rb-汞系统的X射线吸收（EXAFS和XANES），在格勒诺布尔ESRF上。汞在L边缘的吸收和Rb在K边缘的吸收被测量为合金成分的一个功能。从这些结果中，我们发现了该系统周围的汞和Rb原子结构的变化与该系统的电子特性密切相关。Less（低）

1). Mercury, a representative liquid metal, shows a metal-nonmetal transition in the supercritical region, and selenium, a representative liquid semiconductor, shows a transition from semiconductor to metal, and then to insulator. It is very important to investigate the relation between these physical properties and the atomic arrangement, density fluctuation or cluster formation in these materials. In the present study we have obtained some interesting results on the short-, medium-, and long-range structure of supercritical mercury and selenium, using the facilities of ESRF of Grenoble and Spring-8 of Nishiharima as strong X-ray sources.2). In superionic conductor glasses the dielectric relaxation associated with the glass transition cannot be observed due to large ionic conductivity. In the high frequency region, however, the contribution of ionic conduction is relatively small and it is expected to observe this dielectric relaxation. In this year, measurements of dielectric relaxat … More ion for AgI-AgィイD22ィエD2O-BィイD22ィエD2OィイD23ィエD2, AgI-AgPOィイD23ィエD2 have been made at the Bourgogne University up to the glass transition temperature over the frequency range from 1MHZ to 1GHz. From the results obtained we discuss quantitatively considering the concentration fluctuation of oxides and halides in the glasses. We have also made some preliminary measurements on bromine NMR in an aqueous solution of ZnBrィイD22ィエD2 over a temperature range from room temperature to above 100℃.3). The alkali metal-mercury alloy systems show interesting electronic properties such as minimum of thermoelectric power. It is strongly suggested that the medium range chemical order due to the charge transfer between the constituent atoms is related to these properties. In this year we have measured the X-ray absorption (EXAFS and XANES) for the liquid Rb-Hg system, at ESRF of Grenoble. The absorption at the L-edge for Hg and at the K-edge for Rb was measured as a function of alloy composition. From these results we have found that the change of the stucture around the Hg and Rb atoms is strongly correlated with the electronic properties of this system. Less