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Program Highlights

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.

Where Materials Begin and Society BenefitsVertical Organic Electrochemical Transistors and Logic Circuits

By  employing  redox-active  and  redox-inactive  polymers  in  a mixed-dimensional   heterostructure   architecture,   Northwestern University    MRSEC    IRG-1    has    achieved    vertical    organic electrochemical  transistors  (vOECTs)  for  the  first  time.

Accelerated Discovery of Thermoelectric Heteroanionic Materials

Northwestern  University  MRSEC  IRG-2  has  developed  an efficient  theoretical  framework  based  on  high-throughput density functional theory calculations and machine learning methods  to  accelerate  the  discovery  of  heteroanionic materials.

Partnership in Research and Education in Materials with Navajo Tech: Inspiring STEM Pathways from High School to Graduate Studies

The  Partnership  for  Research  and  Education  in Materials  between  Navajo Technical  University  and the   MRSEC   based   at   Harvard   focuses   on developing culturally-informed, sustainable pathways into materials science-related careers and advanced studies  for  Navajo  students.

Inverse Design of Mechanical Metamaterials with Target Nonlinear Response via a Neural Accelerated Evolution Strategy

A team at the Harvard MRSEC led by Bertoldi and Rycroft  has  developed  a  framework  to  design mechanical  metamaterials  with  target  nonlinear response. Neural networks were used to accurately learn  the  relationship  between  the  geometry  and nonlinear   mechanical   response   of   these metamaterials.

Monitoring the Solution Persistence of Porous Coordination Cages with Diffusion NMR Spectroscopy and Cryogenic Transmission Electron Microscopy

Here, diffusion of NMR spectroscopy, transmission electron microscopy, and cryogenic transmission electron spectroscopy were used to characterize porous cages in solution. A combination of the methods can be used to discriminate between assembled cages as opposed to decomposed or isomerized materials while dissolved in polar organic solvents, regardless of the metal cations used in their assembly.