Quantum ground states and associated quantum fluctuations can govern technologically highly relevant material properties as demonstrated, e.g., in cuprate and pnictide high-temperature superconductors, highly frustrated magnets, or quantum paraelectrics. The basic building blocks in several of these materials are low-dimensional and/or geometrically frustrated magnetic substructures, in which quantum effects are particularly pronounced and strongly affect the macroscopic properties. The goal of this project will be to unveil novel ground states and associated unusual macroscopic effects in geometrically frustrated low-dimensional spin systems.
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