IRG1 figure

IRG 1: Advanced Semiconductors for Coherent Charge-Neutral Information Flow

ABOUT IRG1

IRG1 establishes a new materials paradigm for next-generation information systems based on coherent charge-neutral excitations capable of nearly dissipation-free information transport over microns. IRG1 seeks to:

  1. Develop new vdW semiconductors with ferromagnetic, ferroelectric, multiferroic, and altermagnetic orders that host coherently propagating charge-neutral excitations addressable optically and electronically, enabling systematic optimization of lifetimes and propagation lengths; and
  2. Integrate materials and excitations with optical and electrical signals to demonstrate their viability as interconnects and information-processing platforms.

IRG1 seeks to study designed materials with a suite of cutting-edge spectroscopy, microscopy, and devices to refine models for transduction and transport, and will create a library of vdW semiconductors with enhanced intrinsic transduction (InT) for nearly dissipation-free interconnects, demonstrations of optical and electrical transduction in devices, and extensions to quantum phenomena.

 

PARTICIPANTS

Faculty Leaders:  Aravind Devarakonda, David Reichman

Primary Participants:  Tim Berkelbach, Cory Dean, Milan Delor, Lia Krusin-Elbaum (CCNY), Xavier Roy, Michele Simoncelli, Xiaoyang Zhu

Primary National Lab & International Participants: Eric Bauer (LANL), Allen Scheie (LANL), Ashish Kundu (BNL), Elio Vescovo (BNL)

Postdocs: TBC

Graduate Students: Ye Hwi Oh (Devarakonda), Kylie Thompson (Devarakonda), Adam Williams (Dean)

FOUNDATIONAL RESULTS

IRG1 is built on foundational results achieved recently by this team of co-PIs, including the synthesis of novel ferroic platforms and the demonstration of long-lived charge-neutral excitations in them. Research underpinning the intellectual basis of IRG1 include findings on magnetic semiconductor CrSBr, optically addressable coherent magnons in semiconducting CrSBr, ferroelectric vdW materials, electrically-detected magnetic resonance in CrSBr tunnel junctions, and the discovery of coherent ferrons in semiconducting NbOI2.