水分子簇的红外光谱研究进展

研究水分子簇的结构和结合特征是了解液相水、固相水性质的一个好途径。本文介绍了近年来利用红外光谱研究水分子簇的内容和进展 。

水分子簇的研究进展

水分子簇结构与功能的探索已引起科学界的广泛关注并逐渐成为簇科学研究领域中的一个热点。本文综述了近年来水分子簇间作用力研究的进展、内容和方法并加以比较 ,重点介绍了远红外振转隧道光谱法 ,简述了超冷水的分子结构特征 ,并对该领域的研究前景作了展望。

Spin-Polarized Tunneling Spectroscopy and Shot Noise in Ferromagnet／f-WaveSuperconductor Junctions

The tunneling spectroscopy and shot noise in ferromagnet/insulator/triplet-superconductor (FM/I/tripletSC) structures are studied by taking into account the roughness interfacial barrier and exchange splitting in the FM.For the triplet-SC of Sr2RuO4, we consider two-dimensional f-wave order parameter symmetries having nodes within the RuO2 plane, which reasonably describe both thermodynamic and thermal conductivity data. It is shown that the ferromagnetic exchange splitting gives rise to a decrease in the differential conductance, the average current, and the shot noise power, while the noise power-to-current ratio is increased; the interface roughness is found to lead to a decrease in the differential conductance and the average current, and an increase in the noise power-to-current ratio.

美国科学家首制硼烯

科学家首次制得了2D硼原子片层结构。这种原子级厚的片层称为硼烯,早就有理论预测,但制备上有很大挑战。新的研究表明,可以采用一种简单的、廉价方法来制备这种材料。