July 26th, 2006 | researchmaterial
Known as a hole quantum wire, it exploits gaps â€“ or holes – between electrons. The relationship between electrons and holes is like that between electrons and anti-electrons, or matter and anti-matter.
The holes can be thought of as real quantum particles that have an electrical charge and a spin. They exhibit remarkable quantum properties and could lead to a new world of super-fast, low-powered transistors and powerful quantum computers.
Quantum wires are microscopically small, in this case about 100 times narrower than a human hair. They are so narrow that electrons can only pass along them in single file.
Manufacturers are keenly interested in them because they hold the potential for new high-speed electronics applications, known as spintronics, where semiconductor devices have both electric and magnetic properties…