Supercurrent: Difference between revisions

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A supercurrent is a superconducting current, that is, electric current which flows without dissipation in a superconductor.^[1]^[2]^[3] Under certain conditions, an electric current can also flow without dissipation in microscopically small non-superconducting metals. However, currents in such perfect conductors are not called supercurrents, but persistent currents.

References

^ Jones, Andrew Zimmerman. "supercurrent - definition of a supercurrent". About.com Physics. Retrieved 5 June 2013.
^ Christopher L. Henley. "Lecture 6.4 - Supercurrent and critical currents". States in Solids (PDF). (unpublished). Archived from the original (PDF) on 22 December 2011.
^ Hirsch, J. E. (2004). "Electrodynamics of superconductors". Physical Review B. 69 (21): 214515. arXiv:cond-mat/0312619. Bibcode:2004PhRvB..69u4515H. doi:10.1103/PhysRevB.69.214515.

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[1] Jones, Andrew Zimmerman. "supercurrent - definition of a supercurrent". About.com Physics. Retrieved 5 June 2013.

[2] Christopher L. Henley. "Lecture 6.4 - Supercurrent and critical currents". States in Solids (PDF). (unpublished). Archived from the original (PDF) on 22 December 2011.

[3] Hirsch, J. E. (2004). "Electrodynamics of superconductors". Physical Review B. 69 (21): 214515. arXiv:cond-mat/0312619. Bibcode:2004PhRvB..69u4515H. doi:10.1103/PhysRevB.69.214515.

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 {{Short description|Current flowing in a superconductor without dissipation}}
-A '''supercurrent''' is a superconducting current, that is, [[electric current]] which flows without [[dissipation]] in a [[superconductor]].<ref>{{cite web|last=Jones|first=Andrew Zimmerman|title=supercurrent - definition of a supercurrent|url=http://physics.about.com/od/physicsqtot/g/supercurrent.htm|website=About.com Physics|accessdate=5 June 2013}}</ref><ref>{{cite book|url=http://people.ccmr.cornell.edu/~clh/BT-GL/6.4.pdf|author=Christopher L. Henley|title=States in Solids|chapter=Lecture 6.4 - Supercurrent and critical currents|archive-url=https://web.archive.org/web/20111222125818/http://people.ccmr.cornell.edu/~clh/BT-GL/6.4.pdf|url-status=dead|archive-date=22 December 2011|publisher=(unpublished)}}</ref><ref>{{cite journal|last1=Hirsch|first1=J. E.|title=Electrodynamics of superconductors|journal=Physical Review B|year=2004|volume=69|issue=21|pages=214515|doi=10.1103/PhysRevB.69.214515|arxiv=cond-mat/0312619|bibcode=2004PhRvB..69u4515H}}</ref> Under certain conditions, an electric current can also flow without dissipation in microscopically small non-superconducting metals. However, such currents are not called supercurrents, but [[persistent current]]s.
+A '''supercurrent''' is a superconducting current, that is, [[electric current]] which flows without [[dissipation]] in a [[superconductor]].<ref>{{cite web|last=Jones|first=Andrew Zimmerman|title=supercurrent - definition of a supercurrent|url=http://physics.about.com/od/physicsqtot/g/supercurrent.htm|website=About.com Physics|accessdate=5 June 2013}}</ref><ref>{{cite book|url=http://people.ccmr.cornell.edu/~clh/BT-GL/6.4.pdf|author=Christopher L. Henley|title=States in Solids|chapter=Lecture 6.4 - Supercurrent and critical currents|archive-url=https://web.archive.org/web/20111222125818/http://people.ccmr.cornell.edu/~clh/BT-GL/6.4.pdf|url-status=dead|archive-date=22 December 2011|publisher=(unpublished)}}</ref><ref>{{cite journal|last1=Hirsch|first1=J. E.|title=Electrodynamics of superconductors|journal=Physical Review B|year=2004|volume=69|issue=21|pages=214515|doi=10.1103/PhysRevB.69.214515|arxiv=cond-mat/0312619|bibcode=2004PhRvB..69u4515H}}</ref> Under certain conditions, an electric current can also flow without dissipation in microscopically small non-superconducting metals. However, currents in such [[perfect conductor]]s are not called supercurrents, but [[persistent current]]s.
 ==See also==