Monostable–Bistable Transition Logic Element Formed by Tunneling Real-Space Transfer Transistors With Negative Differential Resistance

Author(s):  
Xin Yu ◽  
Lu-Hong Mao ◽  
Wei-Lian Guo ◽  
Shi-Lin Zhang ◽  
Sheng Xie ◽  
...  
1998 ◽  
Vol 21 (2) ◽  
pp. 79-85
Author(s):  
H. C. Chen

DC and AC performances of a GaAs/InGaAs/AIGaAs negative resistance field-effect transistor (NERFET) are demonstrated by molecular beam epitaxy (MBE) for the first time. The negative differential resistance (NDR) resulted from the observation of the hot electron real space transfer effect in InGaAs channel. By Hall measurements, the structure shows carrier mobility as high as 4300 (13500) cm2/v-s at 300 (77)K, which is suitable for high frequency operation. For DC performance, the largest peak-to-valley current ratio of the device is about 5 at room temperature. For AC performance, S-parameter measurements of high frequency and microwave characteristics indicate a projected maximum frequency of oscillation offmax⁡=2.7GHzand a current gain cutoff frequency (fT) occurs at 1.8GHz.


1979 ◽  
Vol 35 (6) ◽  
pp. 469-471 ◽  
Author(s):  
K. Hess ◽  
H. Morkoç ◽  
H. Shichijo ◽  
B. G. Streetman

2016 ◽  
Vol 30 (02) ◽  
pp. 1550256 ◽  
Author(s):  
Ji-Mei Shen ◽  
Jing Liu ◽  
Yi Min ◽  
Li-Ping Zhou

Using the first-principles method which combines the nonequilibrium Green’s function (NEGF) with density functional theory (DFT), the role of defect, dopant, barrier length and geometric deformation for low-bias negative differential resistance (NDR) in two capped armchair carbon nanotubes (CNTs) sandwiching [Formula: see text] barrier are systematically analyzed. We found that this method can regulate the negative differential resistance (NDR) effects such as current peak and peak position. The adjusting mechanism may originate from orbital interaction and orbital reconstruction. Our calculations try to manipulate the transport characteristics in energy space by simply manipulating the structure in real space, which may promise the potential applications in nanomolecular-electronics in the future.


2020 ◽  
Author(s):  
SMITA GAJANAN NAIK ◽  
Mohammad Hussain Kasim Rabinal

Electrical memory switching effect has received a great interest to develop emerging memory technology such as memristors. The high density, fast response, multi-bit storage and low power consumption are their...


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