Anomalous negative differential conductance in nanomechanical double barrier tunneling structures

2005 ◽  
Vol 87 (16) ◽  
pp. 163110 ◽  
Author(s):  
Yutaka Majima ◽  
Yasuo Azuma ◽  
Kouhei Nagano
Keyword(s):  
Differential Conductance ◽  
Double Barrier ◽  
Negative Differential Conductance ◽  
Barrier Tunneling

New Approach to Negative Differential Conductance with High Peak-to-Valley Ratio in Silicon

2000 ◽  
Vol 39 (Part 1, No. 4B) ◽  
pp. 2246-2250 ◽  
Author(s):  
Junji Koga ◽  
Celine Vanderstraeten ◽  
Shin-ichi Takagi ◽  
Akira Toriumi
Keyword(s):  
High Peak ◽  
Differential Conductance ◽  
Negative Differential Conductance ◽  
New Approach ◽  
Peak To Valley Ratio

scholarly journals Giant Spin Current Rectification Due to the Interplay of Negative Differential Conductance and a Non-Uniform Magnetic Field

Entropy ◽  
2020 ◽  
Vol 22 (11) ◽  
pp. 1311
Author(s):  
Kang Hao Lee ◽  
Vinitha Balachandran ◽  
Ryan Tan ◽  
Chu Guo ◽  
Dario Poletti
Keyword(s):  
Magnetic Field ◽  
Uniform Magnetic Field ◽  
Spin Current ◽  
System Size ◽  
Differential Conductance ◽  
Many Body ◽  
Negative Differential Conductance ◽  
Ferromagnetic Domains ◽  
Current Rectification ◽  
High Degree

In XXZ chains with large enough interactions, spin transport can be significantly suppressed when the bias of the dissipative driving becomes large enough. This phenomenon of negative differential conductance is caused by the formation of two oppositely polarized ferromagnetic domains at the edges of the chain. Here, we show that this many-body effect, combined with a non-uniform magnetic field, can allow for a high degree of control of the spin current. In particular, by studying all of the possible shapes of local magnetic fields potentials, we find that a configuration in which the magnetic field points up for half of the chain and down for the other half, can result in giant spin-current rectification, for example, up to 108 for a system with only 8 spins. Our results show clear indications that the rectification can increase with the system size.

Negative differential conductance in two-dimensional electron grids

2008 ◽  
Vol 92 (5) ◽  
pp. 052104 ◽  
Author(s):  
W. Pan ◽  
S. K. Lyo ◽  
J. L. Reno ◽  
J. A. Simmons ◽  
D. Li ◽  
...  
Keyword(s):  
Differential Conductance ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Negative Differential Conductance

Pseudosaturation and Negative Differential Conductance in Graphene Field-Effect Transistors

2013 ◽  
Vol 60 (3) ◽  
pp. 985-991 ◽  
Author(s):  
Alfonso Alarcon ◽  
Viet-Hung Nguyen ◽  
Salim Berrada ◽  
Damien Querlioz ◽  
Jérôme Saint-Martin ◽  
...  
Keyword(s):  
Field Effect ◽  
Field Effect Transistors ◽  
Differential Conductance ◽  
Negative Differential Conductance
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