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MIT Physics Lecture Series: j A New Way to Measure Quantum Energy Levels of Electrons Inside Solids
Professor Ray Ashoori
Thu Jan 28, 01:30-02:30pm, 6-120
No enrollment limit, no advance sign up
Single session event
A basic knowledge of the energy levels of electrons in solids was key in making the semiconductor revolution possible. While methods have long existed for measuring energy levels near the surface of a material, it has proven difficult to probe, with precision, such levels inside of a material. By measuring charge flow from quantum tunneling induced by millions of short electrical pulses, we can now make accurate measurements of energy levels within a solid. Moreover, the energy resolution of the method is thousands of times finer than the most commonly used method for studying levels at the surface. This talk will describe the method as well as some surprising new physics that it has uncovered.
Contact: Nancy Boyce, 4-315, 253-4461, nboyce@mit.edu
Sponsor: Physics
Latest update: 04-Nov-2009
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