An international team of researchers has successfully synthesized the first-ever ideal Weyl semimetal, a significant milestone in the field of quantum materials. This breakthrough paves the way for potential advancements in topological superconductivity and robust quantum computing.
An international team of researchers led by the Strong Correlation Quantum Transport Laboratory of the RIKEN Center for Emergent Matter Science has demonstrated, in a world's first, an ideal Weyl semimetal, marking a breakthrough in a decade-old problem of quantum materials.
Semiconductors have a small 'energy gap' which allows them to be switched between insulating and conducting states, forming the basis for the commercial transistor. Semimetals can be viewed as a kind of extreme limit of a semiconductor with zero 'energy gap', right at the threshold between insulator and metal. This extreme case remains exceedingly rare in real materials.
As for why this insight ultimately emerged at RIKEN, Belopolski credits the unique combination of brilliant researchers, generous research funding and dynamic intellectual atmosphere of CEMS."There were many talented research groups in the United States, China and across Europe working on related topics for many years. The reason this discovery took place here is likely because of the highly creative and collaborative environment at RIKEN.
The team further anticipates research into high-performance sensors, low-power electronics, and novel optoelectronics devices. Postdoctoral researcher Lixuan Tai, who joined the Strong Correlation Quantum Transport Laboratory as this work was nearing publication, expressed excitement about the near-term research enabled by this new quantum phase of matter.
QUANTUM MATERIALS WEYL SEMIMETAL TOPOLOGICAL SEMICONDUCTOR ANOMALOUS HALL EFFECT TERAHERTZ DEVICES
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