Quantum Magnetic Properties in Perovskite with Anderson Localized Artificial Spin-1/2.

ABSTRACT: Quantum magnetic properties in a geometrically frustrated lattice of spin-1/2 magnet, such as quantum spin liquid or solid and the associated spin fractionalization, are considered key in developing a new phase of matter. The feasibility of observing the quantum magnetic properties, usually found in geometrically frustrated lattice of spin-1/2 magnet, in a perovskite material with controlled disorder is demonstrated. It is found that the controlled chemical disorder, due to the chemical substitution of Ru ions by Co-ions, in a simple perovskite CaRuO3 creates a random prototype configuration of artificial spin-1/2 that forms dimer pairs between the nearest and further away ions. The localization of the Co impurity in the Ru matrix is analyzed using the Anderson localization formulation. Th

SUBMITTER: Gunasekera J 

PROVIDER: S-EPMC5980209 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature