Crystal structure investigation of distorted and unddistorted Kagome lattice Heisenberg antiferromagnets at high pressure and low temperatur

We aim at measuring the crystal structure of Y3Cu9(OH)19Br8, Y3Cu9(OH)19Cl8 and Cu3V2O7(OH)2·2H2O at high pressures and low temperatures. Precise determination of bond distances and angles will allow us to make decisive statements on predicted structural and quantum phase transitions.