MIT, ORNL Reposition 40,000 Atoms in 3D at Room Temperature Using Electron Beam
Updated
Updated · Interesting Engineering · May 13
MIT, ORNL Reposition 40,000 Atoms in 3D at Room Temperature Using Electron Beam
4 articles · Updated · Interesting Engineering · May 13
Nearly 40,000 quantum defects were created in about 40 minutes as MIT and ORNL researchers shifted columns of chromium atoms inside a 13-nanometer semiconductor crystal.
Using ORNL microscopes and algorithms, the team steered an electron beam with picometer-scale precision in an oscillating path, moving atoms in three dimensions while limiting crystal damage.
The method overcomes key limits of earlier atomic manipulation techniques, which were largely confined to surfaces, two-dimensional motion, or ultracold lab conditions; IBM's 35-atom demo took hours nearly 40 years ago.
Nature published the work, which the researchers say could enable air-stable quantum defects, programmable matter, and eventually scalable quantum sensors and other devices if it can be extended beyond chromium-based materials.
This atomic 'photocopier' promises perfection, but what unintended damage could it cause to the materials it engineers?
With the power to build matter atom-by-atom, when will quantum devices leave the lab and enter our daily lives?
3D Atomic Manipulation at Room Temperature: The 2026 Breakthrough Enabling Programmable Quantum Materials and Devices
Overview
In May 2026, researchers from MIT and Oak Ridge National Laboratory achieved a major breakthrough by developing a new technique for manipulating individual atoms. Detailed in a Nature paper, this method uses advanced algorithms and highly focused electron beams to precisely move tens of thousands of atoms in three dimensions, all at room temperature. The team demonstrated this on chromium sulfide bromide crystals, showing impressive speed, scale, and reliability. This innovation marks a revolutionary step beyond previous methods, making atomic-scale engineering more practical and opening new possibilities for materials science and quantum technologies.