II. Applications of the Josephson Effect
II. Applications of the Josephson Effect
II. Applications of the Josephson Effect
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R. Gross, A. Marx, and F. Deppe © Wal<strong>the</strong>r-Meißner-Institut (2001 - 2013)<br />
4.1.1 The Zero Voltage State<br />
• finite screening:<br />
β L > 0<br />
• small β L : single valued/non-hysteretic Φ Φ ext<br />
• maximum value <strong>of</strong> Φ cir ≃ LI c<br />
• single valued Φ Φ ext curve for: |Φ cir | ≤ Φ 0<br />
⇒ LI 2 c ≤ Φ 0<br />
2<br />
(more precisely: β L ≤ 2/π)<br />
⇒<br />
β L ≤ 1<br />
AS-Chap. 4 - 11