Staff Sign-Off Sheet

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Josephson Junction

Staff Sign-Off Sheet

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Pre-lab Discussion Questions

It is your responsibility to discuss this lab with an instructor on the first day of your scheduled laboratory period. This signed sheet must be included as the first page of your report. Without it you will lose 1/3 of a letter grade. You should think about and be prepared to discuss at least the following before you come to lab:

1. What is a Josephson-junction? How do you construct the Josephson-junction used in this experiment?

2. What is a Cooper-pair?

3. What, in a sentence or two, what are the Josephson effects (DC and AC)? How are they useful?

4. Why is it important to know the number 2e/h; what does it mean?

Staff Signature Date

Completed on the first day of lab? (circle) Yes / No

Mid-lab Questions On day 6 of this lab, show your photo of the DC effect with calibrated axis and photo of the AC effect, with calibrated axis, to a GSI. Also you present your measured corrected value for 2e/h in units of MHz/?V, with uncertainty, to an instructor and ask for a signature. Staff Signature Date Completed on the sixth day of lab? (circle) Yes / No

INCLUDE THIS SHEET AS THE FIRST PAGE OF YOUR REPORT