BCS Theory
BCS Theory (THeory of Superconductivity)
“While at the University of Illinois (1951-1970) he [John Bardeen], Leon Cooper and John Schreiffer proposed and developed the Bardeen, Cooper, Schreiffer (BCS) theory of superconductivity” (36).
“He observed that the temperature at which a metal becomes superconducting is inversely proportional to its atomic mass, suggesting that the "electron-phonon coupling" or the interaction of the electronic and vibrational modes in the metal lattice must be involved. Cooper had shown that electronic particles could associate in metals at low temperatures as "Cooper pairs" having zero spin.” (37).
This observation eventually evolved into the BCS Theory.
“He observed that the temperature at which a metal becomes superconducting is inversely proportional to its atomic mass, suggesting that the "electron-phonon coupling" or the interaction of the electronic and vibrational modes in the metal lattice must be involved. Cooper had shown that electronic particles could associate in metals at low temperatures as "Cooper pairs" having zero spin.” (37).
This observation eventually evolved into the BCS Theory.
Results
"The Nobel Prize in Physics 1972 was awarded jointly to John Bardeen, Leon Neil Cooper and John Robert Schrieffer "for their jointly developed theory of superconductivity, usually called the BCS-theory" (38).
“Further, science is a collaborative effort.” |
Superconductivity, without resistance, has helped researches develop:
- Magnetic Imaging
- High Speed Computers
- Medical Diagnostic Tools
- Power Lines (40)
36 - Virginia Tech. "John Bardeen." Virginia Tech. Last modified December 21, 2001. Accessed December 1,
38 - Lundqvist, Stig, ed. "John Bardeen - Biographical." Nobelprize.org. Last modified 1992.
39 - Bardeen, John. "Electron-Phonon Interactions and Superconductivity." Nobel Lecture, Departments of Physics and of Electrical Engineering at the University of Illinois,
40 - "Spark of Genius: The Story of John Bardeen at the University of Illinois." Video file, 23:12. Posted by University of Illinois, August 26, 2010.
38 - Lundqvist, Stig, ed. "John Bardeen - Biographical." Nobelprize.org. Last modified 1992.
39 - Bardeen, John. "Electron-Phonon Interactions and Superconductivity." Nobel Lecture, Departments of Physics and of Electrical Engineering at the University of Illinois,
40 - "Spark of Genius: The Story of John Bardeen at the University of Illinois." Video file, 23:12. Posted by University of Illinois, August 26, 2010.
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John Bardeen: Physics Mastermind and Father of the Age of Information
Prasnav Naik - Senior Division
http://www.microsoft.com/en-us/download/details.aspx?id=20426
John Bardeen: Physics Mastermind and Father of the Age of Information
Prasnav Naik - Senior Division