A superconducting persistent current experiment for an undergraduate laboratory

American Journal of Physics

Volumn 65, Issue 8, 1997, Pages 778-784

  Tiernan, W M ^a,b  

^a UNIVERSITY OF MASSACHUSETTS   (United States)

^b and Mass Communication   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0031529653     PISSN: 00029505     EISSN: None     Source Type: Journal    
DOI: 10.1119/1.18638     Document Type: Article

References (16)

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2. D. A. Huse, M. P. A. Fisher, and D. S. Fisher, "Are superconductors really superconducting?," Nature 358, 553-559 (1992).
3. C. Kittel, Introduction to Solid State Physics (Wiley, New York, 1986). 6th ed., Chap. 12.
4. D. R. Tilley and J. Tilley, Superfluidity and Superconductivity (Institute of Physics, Philadelphia, 1990), 3rd ed. Sections 1.2 and 5.3 discuss basic concepts, Sec. 6.1 describes general properties of flux vortices, and Sec. 6.3 discusses the relationship between vortices and critical currents.
5. c superconductors," J. Phys. (France) III 2, 1041-1257 (1992).
6. Colorado Superconductors Inc., Fort Coffins, CO (970)491-9106. YBCO rings are item K18, marketed as a superconducting storage device.
7. A. Bourdillon and N. X. Tan Bourdillon, High Temperature Superconductors: Processing and Science (Academic, San Diego, 1994).
8. W. M. Tiernan, R. Joshi, and R. B. Hallock, "I-V characteristics and the superconducting transition in polycrystalline YBCO," Phys. Rev. B 48, 3423-3432 (1993).
9. 99.999% YBCO powder was obtained from Superconductive Components, Inc., Columbus, OH.
10. The boats were obtained from Coors Ceramics Co., Golden, CO (303)277-4052.
11. The oven was a Lindberg model 55322-3 with a model 58114-P temperature controller.
12. M. Nikolo, "Superconductivity: A guide to alternating current susceptibility measurements and alternating current susceptometer design," Am. J. Phys. 63, 57-65 (1995).
13. Glass Dewars can be obtained from Pope Scientific, Inc., Menomonee Falls, WI.
14. Micro Switch SS9 series Hall effect transducers are available from Newark Electronics for about $20.
15. Lake Shore Cryotronics Inc., 64 East Walnut Street, Westerville, OH.
16. 7-x," Am. J. Phys. 61, 832-834 (1993).