In a recent breakthrough, researchers from the University of Tokyo have developed a new method for fabricating atomically precise quantum antidots in a single vacancy. This new method could open the door for a range of new applications in nanoelectronics.

The researchers used a scanning tunneling microscope (STM) to precisely position a single atom at the center of an empty space, or vacancy, in a two-dimensional material. This atom-centered vacancy, or “quantum antidot”, can act as a quantum dot, which can control the electrical properties of the material. This could be used to create new devices such as transistors or quantum computers.

The researchers believe that this new method could be used to fabricate atomically precise quantum antidots on a much larger scale than previously possible. This could lead to the development of a new range of nanoelectronic devices with precise control over their electrical properties.

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source: Phys.org