Archer Materials Limited · ASX:AXE
Archer Materials — RMIT Quantum Industry Day (April 2025)
11 slides from Archer Materials's conference presentation, Apr 9, 2025
Slide 1: Archer Materials (ASX:AXE) - 12CQ Quantum Program
For personal use only Archer Materials (ASX:AXE) - 12CQ Quantum Program 9th April 2025
Slide 2: Spin Coherence in Carbon Nanospheres
For personal use only Spin Coherence in Carbon Nanospheres Advanced positioning and lithography for nanoscale device fabrication Room temperature electron coherence spin lifetime (T2) = 230 ns 5 nm Archer is developing novel carbon materials with long room temperature T2 spin coherence lifetimes, us
Slide 3: Archer's Quantum Carbon Film
Archer’s Quantum Carbon Film Quantum film deposition Electron spin coherence time 5×5 mm2 chip T2 ≈ 830 ns For personal use only Carbon film At room temperature SiO2 With development Si predicting a 2-3 times increase of T2 – well beyond 1 μs ▪ We are exploiting the long spin lifetime for quantum de
Slide 4: Film Processing and Device Fabrication
Film Processing and Device Fabrication Carbon film ▪ CVD-like process. deposited on a ▪ Carbon-based precursors. ▪ Good run-to-run and chip- For personal use only range of substrates, including silicon and to-chip uniformity. SiO2 ▪ Low impurity levels . ▪ Photo- or e-beam lithography. ▪ Photo- or e
Slide 5: Single Electron Transistors – Coulomb Blockade
Single Electron Transistors – Coulomb Blockade Current Conductance For personal use only • Addition energy (Eadd) of ~400 meV – matching a temperature of 80 Kelvin. • Excited states (E *), result of C=C bond stretching: • Coupling of ~200 meV. • Suggests very strong electron- vibrational mode coupli
Slide 6: Micro-resonators – Spin Detection and Control
Micro-resonators – Spin Detection and Control Effective coupling vs temperature Microwave freq (GHz) Schematic of experimental setup 30 mK For personal use only S21 (dBm) resonance 2gc resonance B field (T) Carbon spin material Avoided-crossing → quantum hybridization when resonator frequency is clo
Slide 7: Chip-based Spin Detection
For personal use only Chip-based Spin Detection Chip design has been manufactured on SiGe BiCMOS, Pulsed electron spin resonance allow direct HEMT and standard CMOS technology platforms measurements of electron spin lifetime Archer has developed chip-based ESR microsystem demonstrating efficient det
Slide 8: Qubit Roadmap
Qubit Roadmap 1. Confinement (CNO device) 2. Control (global/local ) For personal use only Qubit components + 3. Readout (graphene SET) Work in progress Elzerman et al, Nature 430 (2004) Work will be extended on devices built around nanodots of carbon. Targeting an Elzerman qubit architecture demons
Slide 9: Sensing Applications - Magnetometry
Sensing Applications - Magnetometry Sensor dimension vs sensitivity Proposed carbon-dot magnetic microscope For personal use only Archer’s carbon entitlement Array of lithographically defined spin single electron transistors (SSETs) would allow an extremely sensitive, high spatial resolution magneti
Slide 10: Archer Materials – Quantum Program
Archer Materials – Quantum Program ▪ We are developing quantum technology in differentiated carbon-based materials that have attractive quantum For personal use only properties even at elevated temperatures. ▪ Our focus is qubit technology for quantum computing. ▪ There is the possibility to develop
Slide 11: For personal use only
For personal use only hello@archerx.com.au https://twitter.com/archerxau?lang=en https://www.linkedin.com/company/archerxau Sign up to our Newsletter: http://eepurl.com/dKosXI ASX Code: AXE ACN: 123 993 233 The Board of Archer authorised this announcement to be given to ASX. archerx.com.au 11
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