Novel zero-resistance states induced by photoexcitation in the high mobility GaAs/AlGaAs two-dimensional electron system

2004 ◽  
Vol 25 (2-3) ◽  
pp. 189-197 ◽  
Author(s):  
R.G. Mani
Keyword(s):  
High Mobility ◽  
Electron System ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Dimensional Electron System ◽  
Zero Resistance

scholarly journals OSCILLATORY AND VANISHING RESISTANCE STATES IN MICROWAVE IRRADIATED 2D ELECTRON SYSTEMS

2004 ◽  
Vol 18 (27n29) ◽  
pp. 3465-3472 ◽  
Author(s):  
R. R. DU ◽  
M. A. ZUDOV ◽  
C. L. YANG ◽  
Z. Q. YUAN ◽  
L. N. PFEIFFER ◽  
...  
Keyword(s):  
High Frequency ◽  
High Mobility ◽  
Electron System ◽  
Two Dimensional ◽  
Electron Systems ◽  
Dimensional Electron ◽  
Dimensional Electron System ◽  
Zero Resistance ◽  
The Subject ◽  
Shubnikov De Haas Oscillations

Giant-amplitude oscillations in dc magnetoresistance of a high-mobility two-dimensional electron system can be induced by millimeterwave irradiations, leading to zero-resistance states at the oscillation minima. Following a brief overview of the now well-known phenomenon, this paper reports on aspects of more recent experiments on the subject. These are: new zero-resistance states associated with multi-photon processes; suppression of Shubnikov-de Haas oscillations by high-frequency microwaves; and microwave photoconductivity of a high-mobility two-dimensional hole system.

scholarly journals PHOTO-EXCITED ZERO-RESISTANCE STATES IN THE GaAs/AlGaAs SYSTEM

2004 ◽  
Vol 18 (27n29) ◽  
pp. 3473-3480 ◽  
Author(s):  
R. G. MANI
Keyword(s):  
Effective Mass ◽  
Liquid Helium ◽  
High Mobility ◽  
Microwave Frequency ◽  
Electron System ◽  
Experimental Results ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Dimensional Electron System ◽  
Zero Resistance

The microwave-excited high mobility two-dimensional electron system exhibits, at liquid helium temperatures, vanishing resistance in the vicinity of B=[4/(4j+1)]Bf, where Bf=2πfm*/e, m* is an effective mass, e is the charge, and f is the microwave frequency. Here, we summarize some experimental results.

STUDY OF TRANSPORT AND DEVICES BASED ON THE PHOTO-EXCITED TWO-DIMENSIONAL ELECTRONIC SYSTEM

2007 ◽  
Vol 17 (04) ◽  
pp. 777-788
Author(s):  
R. G. MANI
Keyword(s):  
Radiation Detector ◽  
High Mobility ◽  
Electronic System ◽  
Electron System ◽  
Experimental Results ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Dimensional Electron System ◽  
Zero Resistance

A high mobility two-dimensional electron system exhibits large changes in the resistance, and zero-resistance states, under microwave and Terahertz excitation. We describe associated experimental results and the possibility of using this system as a radiation detector.

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