Researchers at the Massachusetts Institute of Technology have discovered an unexpected material that shows a strange physical phenomenon called Kohn abnormality. Researchers at the Massachusetts Institute of Technology and elsewhere believe that these processes help determine why metals and other materials exhibit complex electronic properties that underpin today’s technologies. The way electrons interact with phonosphor sons determines the physical processes that occur inside many electronic devices, the team said.
These interactions have been difficult to study in detail because they are often very weak. However, the new study found a new, more durable and unusual electron-acoustic interaction called Kohn abnormality. This anomaly was previously thought to exist only in conductive materials such as graphene, but was found in a singular material called topological Weyl semi-metal. In this case, Weyl semi-metal is phosphated. Scientists say the discovery could help shed light on important aspects of the complex interactions between electrons and phonocites.
MIT graduate students Thanh Nguyen and Nina Andrejevic, postdoctoral draughto Siu-Pedro, research scientists Han Fei, Professor Lee Myung-ta, and 14 people from MIT and several other universities and national laboratories described the new findings in a paper this weekend, based on theoretical predictions and experimental observations. To measure interactions, the team used advanced neutron and X-ray scattering probes in three national laboratories to detect the behavior of phosphated tantalum materials.
The researchers say they are predicting The presence of Kohn anomalies in the material based on the theory. They were able to direct the experiment to where they wanted to find the phenomenon, and to see good consistency between theory and the experiment. A better understanding of electron-acoustic coupling could provide clues to the development of materials such as better high-temperature semiconductors or fault-tolerant quantum computers, the researchers said. The team says that because the materials are so new, they need time to think about what they can do.