Raabe, Jörg and Weiss, Dieter and Umanski, V (1998) Observation of a new low-field minimum in magnetically modulated systems. Physica B 256-258, p. 405.
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The magnetoresistance of a magnetically modulated two-dimensional electron gas (2DEG) shows a positive magnetoresistance at low fields, which can be ascribed to snake orbits, traveling along contours of vanishing magnetic field. At slightly higher fields anomalies in the resistance result from the commensurability of the classical cyclotron orbit of the electrons at the Fermi energy and the period of the magnetic modulation. In our experiments we observed, besides the minimum at B=0, an additional minimum of the magnetoresistance at B=0.
|Institutions:||Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||25 May 2009 13:20|
|Last Modified:||05 Aug 2009 13:57|