Superconductivity

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    11-Nov-2014
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Presentation on superconductivity by Phelim Bradley for Lab module in University College Cork

Transcript of Superconductivity

  • 1. Super Conductivity
    Zero Resistance at Low Temperatures

2. Contents
History
Magnetic Properties of Superconductors
Meissner Effect
London Equations
Cooper Pairs (BCS Theory)
MagLev
3. History

  • Discovered in 1911 by H. Kamerlingh Onnes.

4. Discovered while investigating if resistance went to 0 when T = 0K 5. Zero resistance occurred for Mecuryat T = 4.2K 6. The temperature where R=0 occurs is called the critical temperature. 7. After 60 years the highestwaswith= 23K 8. Breakthrough in 1986 with discovery ofwith=35K 9. Record at the moment held by (Tl4Ba)Ba2Ca2Cu7O13+with a = 254K(-19C)