Pip, PetaiGlavic, ArturSkjaervo, Sandra HelenWeber, AnjaSmerald, AndrewZhernenkov, KirillLeo, NaemiMila, FredericPhilippe, LaetitiaHeyderman, Laura J.2021-05-222021-05-222021-05-222021-05-0710.1039/d1nh00043hhttps://infoscience.epfl.ch/handle/20.500.14299/178325WOS:000648033800001The triangular lattice with Ising magnetic moments is an archetypical example of geometric frustration. In the case of dipolar-coupled out-of-plane moments, the geometric frustration results in a disordered classical spin-liquid state at higher temperatures while the system is predicted to transition to an anti-ferromagnetic stripe ground state at low temperatures. In this work we fabricate artificial triangular Ising spin systems without and with uniaxial in-plane compression to tune the nature and temperature of the correlations. We probe the energy scale and nature of magnetic correlations by grazing-incidence small-angle neutron scattering. In particular, we apply a newly-developed empirical structure-factor model to describe the measured short-range correlated spin-liquid state, and find good agreement with theoretical predictions. We demonstrate that grazing-incidence neutron scattering on our high-quality samples, in conjunction with detailed modeling of the scattering using the Distorted Wave Born Approximation, can be used to experimentally quantify the spin-liquid-like correlations in highly-frustrated artificial spin systems.Chemistry, PhysicalNanoscience & NanotechnologyMaterials Science, MultidisciplinaryChemistryScience & Technology - Other TopicsMaterials Sciencephaseicetext::journal::journal article::research article