| Time：1130918 (Wed.) 14:20~16:20 Speaker：Prof.雷曼(Raman, Sankar) 中央研究院物理研究所/Institute of Physics, Academia Sinica Title：New Quantum Material Crystal Growth and Characterization Abstract：Breakthroughs in condensed matter physics are often precipitated by the discovery of a new material. Sometimes a new material exhibits a never-before- seen, and never-predicted, property. This is serendipity and these types of discoveries can launch entire new fields. This was the case with the discovery of giant-magnetoresistance in thin film heterostructures and the discovery of high- temperature superconductivity in cuprates. In other realms theory outpaces experiment, as has been the case in the field of topological materials, giving rise to predicted states of matter that have not yet been observed in real materials. Here, a new material can allow connections to be drawn between theory and experiment. Testing these predictions requires crystal growers to understand the key ingredients of a theoretical model and incorporate them into a real material. translating equations into chemical elements. It is in this realm that we can use the principles of materials design, and along the way we may encounter a little serendipity. Our group uses a wide range of synthetic methods to grow samples of the materials we study. Conventional solid-state methods (shake-and-bake) and flux crystal growths are ideally suited to exploratory synthesis in the pursuit of exciting new materials. The optical floating zone image furnace is a powerful tool that allows us to grow pristine large single crystals. High pressure methods allow us to capture metastable phases that cannot be grown under ambient pressure conditions, an excellent route to finding new structural phases with the potential for exotic new properties. By using this diverse set of synthetic techniques, we are able to explore the periodic table in an unconstrained way, applying the most favorable method for the material we seek to grow! Place：B101, Gongguan Campus, NTNU |
