Researchers say magnets might controlheat and sound waves
According to a new research, power magnets can be used to control both heat and sound waves as it creates a powerful magnetic field.
A team of researchers from the Ohio State University were able to find how to control heat and sound with a magnetic field from powerful magnets. The researchers studied semiconductors that were cooled to 450 degrees below zero Fahrenheit and were then exposed to seven-Tesla magnets. They used Indium antimonide to create a semiconductor shaped like a minuscule tuning fork. One tine had a diameter of one-sixth of an inch while another was a quarter of that size.
Joseph Heremans, professor of mechanical engineering at the Ohio State University, and the lead author of the study, said, “This adds a new dimension to our understanding of acoustic waves. We have shown that we can steer heat magnetically. With a strong enough magnetic field, we should be able to steer sound waves, too.”
The team found that when the was activeflow of thermal energy through the larger side was found to be 12 per cent lower than when the magnetic field was not active.
The team believes that the findings might help control heat in nonmagnetic materials including wood, plastic and concrete.
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