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Program Highlights

Bi2Se3 Growth on (001) GaAs Substrates for Terahertz Integrated Systems

This work demonstrates that the TI vdW material Bi2Se3 can be grown as a single-crystalline single-orientation film on semiconductor substrates with appropriate substrate pre-treatment conditions.

An efficient material search for room-temperature topological magnons

IRG-2 developed a symmetry-based approach that uses only few inputs, to carry out an efficient yet systematic search for topological magnons in magnetic insulators. Robust against disorders and decoherence, they serve as potential platforms for magnon-based spintronic devices.

Strengthening Networks: Connecting MRSEC and PREM Students with Academic and Industry Representatives

The Ohio State University and University of California, Santa Barbara MRSECS  partnered  to  host  the  Conference  Across  MRSECs  and PREMs (CAMPS) in October 2022.

Hydrogel Crosslinking Regulated using Genetic Logic

Living polymer networks, including tissues andbiofilms, actively respond to complex combinations ofenvironmental inputs, leading to differentiation,regeneration, and development.

Confined Monolayer Ag as a Large Gap 2D Semiconductor

By mapping momentum-resolved electronic states using time-resolved and angle-resolved photoemission spectroscopy, researchers recently revealed that monolayer Ag confined between bilayer graphene and SiC is a large gap (>1 eV) 2D semiconductor, consistent with ab initio GW calculations.

Superconductivity and Correlations in Alternating Twist Quadrilayer Graphene

Moiré materials realized by controlling the twistbetween different atomic layers represent anemerging family of crystals with unique electronicproperties.

Core-Shell Gyroid in ABC Bottlebrush Block Terpolymers

A  principal  obstacle  to  widespread  applications  of  self-assembled network morphologies (NETs) of linear block polymers is access to only limited pore diameters and unit cell dimensions (typically <50 nm),  originating  from  their  coil  configurations  and  slow  self-assembly  kinetics  at  high  molar  masses.

Ferroelectric Superconductivity in a Transition Metal Dichalcogenide

For the first time, a team comprised of two IRG-1 theorists (Birol  and Fernandes) working with experimentalists from other institutions (including  the  Columbia  MRSEC) showed the  coexistence of ferroelectricity (i.e.,  electrostatically switchable macroscopic dipole moment) and superconductivity in a two-dimensional superconductor.

Franklin Middle School Visits the I-MRSEC

In February 2023, the I-MRSEC hosted over 40 middle schoolers and teachers from Franklin STEAM Academy, a Champaign public middle school, at Materials Research Lab for a day of hands-on activities and lab visits.

Angstrom-scale imaging of antiferromagnetic Fe2As via 4D-STEM

New electron microscopy technique developed at UIUC show that magnetic order in antiferromagnetic Fe2As can be resolved at angstrom resolution for the first time.

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