Pressure induced quantum phase transitions in Ca2RuO4
ORAL
Abstract
Ca$_{2}$RuO$_{4 }$is a member of the family of ruthenates, which are strongly correlated systems that exhibit a wide range of interesting phenomena including metal-insulator transitions, orbital and magnetic ordering and unconventional superconductivity. Using a novel setup in a miniature anvil cell, we have been able to measure magnetic susceptibility under high hydrostatic pressure and have followed the transitions of Ca$_{2}$RuO$_{4}$ from an antiferromagnetic Mott insulator to a ferromagnetic metal. Additionally, we have investigated the evolution of this ferromagnetically ordered state as the pressure is increased, successfully suppressing this transition towards a quantum critical point.
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