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DE-SC0021973: Lattice Instabilities, Emergent Electronic Phases and Collective Behavior Rooted in the Quantum World

Award Status: Active
  • Institution: Central Michigan University, Mount Pleasant, MI
  • DUNS: 624134037
  • Most Recent Award Date: 04/26/2023
  • Number of Support Periods: 3
  • PM: Wilson, Lane
  • Current Budget Period: 06/01/2023 - 05/31/2024
  • Current Project Period: 06/01/2021 - 05/31/2024
  • PI: Petkov, Valeri
  • Supplement Budget Period: N/A

Public Abstract

      Lattice instabilities, emergent electronic phases and collective behavior rooted in the quantum world

                       PI: Valeri Petkov, Department of Physics, Central Michigan University

Quantum materials exhibit exotic structural, magnetic and electrical properties that defy a simple classical description. Examples include superconductors, multiferroics, charge density wave systems, topological insulators, Weyl semimetals, quantum spin liquids and ices. If understood and controlled, their properties could revolutionized virtually every aspect of society.

A characteristic feature of quantum materials is the presence of lattice instabilities and broken local symmetry that keep them on the edge of a structural stability amidst the strong competition between different, often entangled electronic phases. This project aims at advancing through fundamental research the atomic-level understanding of electronic phases and collective behavior emerging from the interaction between quantum and lattice degrees of freedom using advanced x-ray scattering techniques and 3D structure modeling. The project will concentrate on multiferroics and charge density wave systems. Since emergent phenomena are very sensitive to external stimuli, the systems will be studied as important physical parameters such as temperature, chemical composition and dimensionality are varied in a controlled manner.

Results from the research will elucidate the basic physics behind fascinating phenomena exhibited by quantum materials and help leverage their enormous technological potential. In addition, they will benefit a large community of scientists using advanced x-ray scattering techniques

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