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Wednesday, October 13, 2021

Quantum Electric Materials

Quantum Electric Materials.  Seems novel way to apply superconduction.  Technical, with link to paper.

New nanostructure could be the key to quantum electronics  by Vienna University of Technology

A novel electronic component from TU Wien (Vienna) could be an important key to the era of quantum information technology: Using a special manufacturing process, pure germanium is bonded with aluminum in a way that atomically sharp interfaces are created. This results in a so-called monolithic metal-semiconductor-metal heterostructure.

This structure shows unique effects that are particularly evident at low temperatures. The aluminum becomes superconducting—but not only that, this property is also transferred to the adjacent germanium semiconductor and can be specifically controlled with electric fields. This makes it excellently suited for complex applications in quantum technology, such as processing quantum bits. A particular advantage is that using this approach, it is not necessary to develop completely new technologies. Instead, mature and well established semiconductor fabrication techniques can be used to enable germanium-based quantum electronics. The results have now been published in the journal Advanced Materials.  ... "

More information: Jovian Delaforce et al, Al–Ge–Al Nanowire Heterostructure: From Single‐Hole Quantum Dot to Josephson Effect, Advanced Materials (2021). DOI: 10.1002/adma.202101989

Journal information: Advanced Materials 

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