Karol I Wysokinski 2000 Eur. J. Phys. 21 535 doi:10.1088/0143-0807/21/6/304
Karol I Wysokinski
Show affiliationsThe quantum Hall effect (QHE) is a set of phenomena observed at low temperature in a two-dimensional electron gas subject to a strong perpendicular magnetic field. It manifests itself as a quantization of the non-diagonal element ρxy of the resistivity tensor, accompanied by the simultaneous vanishing of ρxx for ranges of the magnetic field. For the integer quantum Hall effect (IQHE), ρxy = {h/νe2}, where h is the Planck constant, e is the charge of an electron and ν is an integer, while for the fractional quantum Hall effect (FQHE), ν is a simple fraction. In spite of the similar phenomenology deep and profound differences between the two effects exist.
In the article I discuss the precision of the Hall quantization in IQHE and the new types of quantum fluids observed in FQHE. Some recent theoretical and experimental discoveries connected with quantum Hall liquids are briefly mentioned.
Issue 6 (November 2000)
Received 28 March 2000
Karol I Wysokinski 2000 Eur. J. Phys. 21 535
Marco Salomone-Stagni et al 2009 J. Phys.: Conf. Ser. 190 012197
B K Tanner 1976 Phys. Educ. 11 97
J W Pye 1978 J. Phys. E: Sci. Instrum. 11 825
Rubén G Barrera and Serge Reynaud 2006 New J. Phys. 8
E Bringuier 2008 Eur. J. Phys. 29 1243
M Saif Islam et al 2004 Nanotechnology 15 L5
JET Team 1992 Nucl. Fusion 32 187
K S Parthasarathy 1977 Phys. Med. Biol. 22 341
A P Ramirez 1997 J. Phys.: Condens. Matter 9 8171