in situ X-ray Diffraction and Electrical Resistance Measurements at High Pressure and Low Temperature

摘要

High pressure is a very useful tool for idscovering new phenomena and exploring new materials. For example, some materials undergo a superconducting transition under high pressure. Also, it is well known that some insulators become metallic at high pressure. Changes in these physical properties are induced by the changes in the electronic state, which is attributed to the rearrangement of the atomic positions bringing about a new minimal energy state at high pressure.