Center for Quantum Sensing and Quantum Materials (QSQM)

Director

Peter Abbamonte

Lead Institution

University of Illinois at Urbana-Champaign

Class

2020-2026

Mission

To apply advanced scattering and scanning probe spectroscopy techniques to study charge dynamics in quantum materials.

Partner Institutions

University of Illinois Urbana-Champaign
SLAC National Accelerator Laboratory

Quick Facts

Single Slide Overview
Technical Summary
https://iquist.illinois.edu/programs/qsqm

BES Staff Contact

Athena Sefat

Marat Valiev

Grand Challenges Addressed

Grand
Challenge #3

Transformative Opportunities Addressed

Understanding the Critical Roles of Heterogeneity, Interfaces, and Disorder

Trans. Opp. #2

Revolutionary Advances in Models, Mathematics, Algorithms, Data, and Computing

Trans. Opp. #4

Exploiting Transformative Advances in Imaging Capabilities across Multiple Scales

Trans. Opp. #5

BES Reports Addressed

Highlights

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Applying a voltage to lanthanum strontium manganite (LSMO) can cause it to separate into distinct regions with dramatically different magnetic properties, as illustrated by the red and blue colors in the above figure.

Tuning Magnetism With Voltage Opens a New Path to Neuromorphic Circuits

Experiments show that applied voltage can dramatically alter the magnetic properties of quantum materials.

A metallic line atop a medium biased at the edge of chaos can provide effective negative resistance for time-varying signals, outputting a larger signal compared to its input. The energy for amplification comes from the static bias applied to the medium.

The “Edge of Chaos” Amplifies Signals Without Transistors

Emulating the edge of chaos of axons enables a metal wire to overcome its resistance without cooling, thereby amplifying signals flowing inside of it.