• Achieved on-chip electrical detection of magnetic resonance (EDMR) on carbon-based qubit material
• EDMR provides a readout method for Archer's qubits and demonstrates potential for highly sensitive magnetic sensor applications
• Collaboration with École Polytechnique Fédérale de Lausanne (EPFL) to integrate EDMR capabilities onto microfabricated test devices

Archer Materials Limited (ASX: AXE), a semiconductor company advancing quantum technology and medical diagnostics industries, has achieved a significant milestone in its quantum technology development by demonstrating electrical detection of electron spin resonance (EDMR) on its carbon qubit film material. In collaboration with École Polytechnique Fédérale de Lausanne (EPFL), Archer has successfully demonstrated on-chip detection of electron magnetic resonance (EDMR) in its advanced carbon spin qubit materials. Early measurements at cryogenic temperatures have successfully captured resonance signatures through changes in device current, validating the on-chip electrical readout approach. These findings lay the groundwork for developing high-sensitivity quantum magnetic sensors and advancing toward practical quantum computing applications. Traditional qubit and sensing readout methods for diamond-based systems rely on optical techniques, which are bulky, expensive, and hard to scale. By contrast, electrical spin detection using EDMR simplifies hardware, enables smaller, integrated devices and is compatible with conventional semiconductor electronics. The team is now focused on integrating EDMR capabilities directly onto microfabricated test devices built around Archer's carbon qubit materials. The demonstration of EDMR opens up another parallel path to qubit readout, which can be used to develop highly sensitive magnetic field sensors for applications in biomedical devices, materials science, navigation and Defence.

Archer and EPFL will focus on enhancing device performance, aiming to achieve robust signal-to-noise ratios at higher operational temperatures. The ongoing research will also explore the integration of this technology into practical quantum computing and magnetic sensing applications.