Observation of H₂O Ice VI Single Crystals under High Pressure by Using Bridgman Anvils with a Compact Hydraulic Oil Cylinder

Abstract

  We describe a simple setup to observe H₂O ice VI single crystals under high pressure by using transparent Bridgman anvils with a compact hydraulic oil cylinder. It is confirmed that growth and melting of the ice VI single crystal was clearly observed as reported in diamond anvil cell experiments. Furthermore, this setup allows students starting to learn high pressure experiments to understand the opposed anvil technique because the anvils are not only easy to manipulate but also visible even when pressure is generated.