Valleytronics core theory for future high-efficiency semiconductor technology

phys.org | 7/23/2019 | Staff
erinmmarion (Posted by) Level 3
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A DGIST research team discovered a theory that can expand the development of valleytronics technology, which has been drawing attention as a next generation semiconductor technology. This is expected to advance the development of valleytronics technology one level further, with next generation magnetic technology that surpasses existing data processing speed.

DGIST announced on Monday, June 17 that Professor JaeDong Lee research's team at the DGIST Department of Emerging Materials Science discovered the formation of valley domain , which will contribute to the performance of next generation semiconductor, development of anomalous current, and its control mechanism. This research has significances as it discovered and applied the correlations between valley domain, current, and two different physical quantities.

Valley - Vertex - Edge - Band - Energy

A valley is a vertex or an edge of band energy and is also called valley spin. Valleytronics is the storage and use of information using the number of quanta which determine valleys. It is applicable to future electronic devices and quantum computing technology since its quantum information storage surpasses the existing charge or spin control technology. Many researchers are conducting research on valley control since valleytronics has infinite potential that encompasses spintronics and nanoelectronics in the next generation semiconductor engineering field. However, the actual applicability is not high due to the difficulties in securing the stability and...
(Excerpt) Read more at: phys.org
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