Executive Summary : | Quantum Spin Liquids (QSLs) are new states of matter where conventional magnetic order is suppressed by strong quantum fluctuations. In geometrically frustrated magnets, the QSL state is realized due to the inability of the system to choose between competing degenerate choices for its ground state. The QSL state might be fragile against perturbations like pressure, which could tilt the delicate balance of energy scales and lead to one of the competing orders being stabilized. The study of QSL candidate materials under pressure is of fundamental interest to see how the QSL state evolves into a conventional ordered state. The reverse problem of how a conventional ordered state melts and gives rise to a QSL state is also of interest. The current proposal aims to study the evolution of the magnetic properties of three QSL materials: Ca10Cr7O28, Na4Ir3O8, and (Na,Cu)2IrO3. The study aims to understand how the balance of energy scales using high pressure leads to interesting changes that might shed light on the development of the QSL state in general. Additionally, the study may be able to close the gap with pressure and drive a Mott insulator-metal transition, revealing novel transport properties in metals with electrons moving on frustrated lattices. |