Putting Chaos To Good Use - In Magnetic Sensors
University of Chicago scientists have discovered how to make magnetic sensors capable of operating at the high temperatures that ceramic engines in cars and aircraft of the future will require for higher operating efficiency than today's internal combustion technology. The key to fabricating the sensors involves slightly diluting samples of a well-known semiconductor material, called indium antimonide, which is valued for its purity. Chicago's Thomas Rosenbaum and associate Jingshi Hu, now of the Massachusetts Institute of Technology, have published their formula in the September issue of Nature Materials. University of Chicago physicist Thomas Rosenbaum, with the helium dilution refrigerator in his laboratory, where he observes the quantum behavior of materials chilled to temperatures approaching absolute zero. (Photo: Dan Dry) Read More...
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