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Scholars Day 2008, Wednesday, April 9

Physics Seminar

Superconductivity is a physical phenomenon that occurs in certain materials when they are cooled to temperatures near absolute zero. It is characterized by the absence of any electrical resistance and the expulsion of magnetic flux (Meissner effect) below the material’s “critical temperature.” Tin, lead, and indium are three such elements that can become superconductors. We studied their phase transitions into a superconducting state using a radio frequency (~20 MHz) superconducting quantum interference device (rf SQUID). SQUIDs are extremely sensitive magnetometers based on superconducting loops with a single Josephson junction.

Presenter: Alan Wong (Undergraduate Student)
Topic: Physics
Location: Fireside Lounge, Seymour Union
Time: 9 am (Session I)

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