Hydrogen in Energy and Information Sciences (HEISs)

Director

Sossina Haile

Lead Institution

Northwestern University

Class

2022-2026

Mission

To advance the fundamental understanding and discovery of multihued hydrogen transport in inorganic solids of earth-abundant elements, and of its transfer along and across interfaces within such materials, where ‘hydrogen’ includes all charge states of the element: H+ (proton), H0 (atom), and H- (hydride ion).

Partner Institutions

Northwestern University
Colorado School of Mines
Florida State University
Massachusetts Institute of Technology
University of Illinois Urbana-Champaign
University of Tennessee

Quick Facts

Single Slide Overview
Technical Summary
https://heiss.northwestern.edu/

BES Staff Contact

Christopher Chervin

Grand Challenges Addressed

Grand
Challenge #2

Grand
Challenge #5

Transformative Opportunities Addressed

Understanding the Critical Roles of Heterogeneity, Interfaces, and Disorder

Trans. Opp. #2

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.