Osaka Researchers Develop 4% Cobalt Quantum Material as Cheaper Alternative to Rare Metals
Updated
Updated · The Quantum Insider · Jun 2
Osaka Researchers Develop 4% Cobalt Quantum Material as Cheaper Alternative to Rare Metals
1 articles · Updated · The Quantum Insider · Jun 2
A University of Osaka-led team created a thin-film quantum material by adding about 4% cobalt to sodium antimonate, producing stable local honeycomb motifs inside a larger honeycomb lattice.
Microscopy and theory showed the cobalt atoms cluster into edge-sharing CoO6 honeycomb structures with strong magnetic interactions, a key feature sought in Kitaev-style quantum materials.
Magnetic tests found a ferromagnetic-like state around 88 K, giving experimental support that the material behaves in line with predictions for this structure.
Cobalt could broaden the search for quantum computing materials because it is far more abundant and cheaper than ruthenium or iridium, which have dominated similar research.
The team is now refining the material and probing its properties further, aiming to turn a lab result into a more scalable platform for quantum information devices.
Is this material a breakthrough, or will quantum computing's future depend on designs that avoid rare materials altogether?
Could soaring EV battery demand make 'cheap' cobalt the new bottleneck for building quantum computers?
Does swapping scarce iridium for cobalt trade a supply problem for a more severe geopolitical and ethical one?
Cobalt Honeycomb Quantum Materials: Osaka University’s Breakthrough Paves the Way for Scalable, Cost-Effective Quantum Computing
Overview
Researchers at Osaka University have developed a new quantum material by doping sodium antimonate with about 4% cobalt, creating stable cobalt honeycomb motifs within a larger honeycomb lattice. This unique structure is important for quantum computing, as it could make the technology more accessible and affordable. By using cobalt, which is abundant and cost-effective, the team addresses a major cost barrier in quantum materials. This innovation opens the door to more scalable and practical quantum computing technologies, moving the field closer to real-world applications.