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A nonlinear transport device with no intrinsic threshold

Song, A. M. and Manus, S. and Streibl, M. and Lorke, A. and Kotthaus, J.P. and Wegscheider, Werner and Bichler, Max (1999) A nonlinear transport device with no intrinsic threshold. Superlattices and Microstructures 25 (1-2), pp. 269-272.

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A ballistic rectifier, based on guidance of carriers by a triangular antidot, is shown to be both experimentally and theoretically capable of operating for weak signals. At T = 4.2 K, we find that the ballistic rectifier works when the input voltage is as low as 0.5 mV, the same order ofkBT. Based on an extended Landauer–Büttiker formula for nonlinear transport, we show that even when the input signal is much smaller thankBT, temperature has no obvious influence on the rectification effect.

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Item Type:Article
Institutions:Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider
Identification Number:
Keywords:nonlinearity; ballistic transport; rectification; threshold
Dewey Decimal Classification:500 Science > 530 Physics
Created at the University of Regensburg:Unknown
Deposited On:30 Nov 2009 13:10
Last Modified:13 Mar 2014 12:08
Item ID:11007
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