Quantum Critical Matter in Strongly Correlated Electronic Systems

Project funded by Croatian Science Foundation (HRZZ) (Unity through Knowledge Fund (2014 - 2020)), grant 20/15. Participating organisations named by the source: Prirodoslovno-matematički fakultet, Zagreb; Institut za fiziku; University of Zagreb, Faculty of Electrical Engineering and Computing and 3 more. Funded amount: HRK 1,709,000, as stated by the source. Runs 2015-12-15 to 2017-12-14. Keywords: strongly correlated systems, NMR, heavy fermions, kagome. Source: OpenAIRE Graph, from the funder's project data (collected by OpenAIRE on 2021-11-24); national funding data, not CORDIS. Abstract given by the source: Most of materials for future technologies come from the class of strongly correlated electron systems (SCES). Their properties cannot be described by the behaviour of individual constituents, but only by taking into account the collective phenomena governed by strong and competing interactions. SCES materials usually feature extraordinary complex phase diagrams, where the control parameter can be temperature, doping, pressure, magnetic field etc. Different phases offer plenty of interesting physical phenomena, the most interesting being transformations between the phases, the phase transitions. Otherwise hidden properties of the system can be efficiently revealed through its behaviour in the vicinity of continuous phase transitions, the so-called critical behaviour. Transitions may be driven by thermal fluctuations, but in current focus are rather those controlled by quantum fluctuations given by the Heisenberg uncertainty principle. These quantum phase transitions are tuned by pressure, magnetic field or chemical doping, they occur at zero absolute temperature but their influence may spread to unexpectedly high temperature. In the attempt to deepen our understanding of quantum physics, researchers often look for exotic new phases of matter that can be reached with the two “key ingredients”: competing interactions and quantum criticality, two features in the focus of modern condensed matter research. In the last decade, theory and experiments have made immense breakthroughs in the two SCES topics: frustrated spin systems (FSS) and heavy fermion systems (HF). Researchers are trying to find the right model materials to confront them to theoretical predictions. Along the same lines, present project will study yet unexplained phase transitions and phases in two novel materials from the two above-mentioned classes. We will employ nuclear magnetic resonance (NMR), a highly sensitive microscopic technique acclaimed for the value of obtained information. Experimental [shortened; the full text is on the OpenAIRE page]

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Croatian Science Foundation (HRZZ). Retrieved 2026-10-28. Licence: Creative Commons Attribution 4.0 (OpenAIRE Graph). Selected metadata, adapted presentation; the publisher's record is authoritative. No endorsement by the source is implied. Licence: Creative Commons Attribution 4.0 (CC BY 4.0).

AI-assisted summary: Project on quantum critical matter in strongly correlated electronic systems, funded by the Croatian Science Foundation, involving multiple institutions and running from 2015 to 2017. It focuses on materials with complex phase diagrams and collective phenomena, with a budget of HRK 1,709,000. Suggested technology pillar: enabling. Generated by AI from the public source text; it may contain errors and the original source is authoritative.