Preserved entropy and fragile magnetism

A large swath of quantum critical and strongly correlated electron systems can be associated with the phenomena of preserved entropy and fragile magnetism. In this overview we present our thoughts and plans for the discovery and development of lanthanide and transition metal based, strongly correlated systems that are revealed by suppressed, fragile magnetism, quantum criticality, or grow out of preserved entropy. We will present and discuss current examples such as YbBiPt, YbAgGe, YbFe₂Zn₂₀, PrAg₂In, BaFe₂As₂, CaFe₂As₂, LaCrSb₃ and LaCrGe₃ as part of our motivation and to provide illustrative examples. (report on progress)