Macroscopic persistent current in the quantum Hall regime

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 239
  • Download : 0
We have observed stable de voltages between two edges of a loop structure in the quantum Hall condition without any external current, which is believed to be the Hall voltages due to a persistent circulating current around the rectangular two-dimension al-electron-gas loop, 4.0 mm by 6.0 mm in size and 0.10 mm in width. The persistent current, as much as 6 mu A at 15 mK estimated from the quantum Hall relation, indicates that two unequal edge currents with opposing directions along both edges do exist in the equilibrium quantum Hall condition. The reversible temperature dependence revealed that the persistent current stays constant from 15 mK to 0.3 K, but slowly decreases to half-value at 0.5 K and becomes nearly zero (but not absolutely zero) at 1.0 K.
Publisher
KOREAN PHYSICAL SOC
Issue Date
1997-08
Language
English
Article Type
Article
Keywords

EDGE CURRENTS; ABSENCE

Citation

JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.31, no.2, pp.329 - 336

ISSN
0374-4884
URI
http://hdl.handle.net/10203/76897
Appears in Collection
EE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0