Quantum mechanical tunnelling: the missing term to achieve sub-kJ mol−1 barrier heights

2021 ◽  
Author(s):  
Sebastian Kozuch ◽  
Tim Schleif ◽  
Amir Karton
Keyword(s):  
Barrier Height ◽  
Quantum Mechanical ◽  
Effective Barrier Height ◽  
Quantum Tunnelling ◽  
Barrier Heights ◽  
Effective Barrier

Quantum tunnelling can lower the effective barrier height, creating a discrepancy between experiment and theory.

High Quality HfO2 Film and Its Applications in Novel Poly-Si Devices

2002 ◽  
Vol 716 ◽  
Author(s):  
K.L. Ng ◽  
N. Zhan ◽  
M.C. Poon ◽  
C.W. Kok ◽  
M. Chan ◽  
...  
Keyword(s):  
Barrier Height ◽  
Nonvolatile Memory ◽  
Dielectric Material ◽  
Tunneling Current ◽  
Interface Layer ◽  
Si Substrate ◽  
Hfo2 Film ◽  
Effective Barrier Height ◽  
Effective Barrier ◽  
Nonvolatile Memory Devices

AbstractHfO2 as a dielectric material in MOS capacitor by direct sputtering of Hf in an O2 ambient onto a Si substrate was studied. The results showed that the interface layer formed between HfO2 and the Si substrate was affected by the RTA time in the 500°C annealing temperature. Since the interface layer is mainly composed of hafnium silicate, and has high interface trap density, the effective barrier height is therefore lowered with increased RTA time. The change in the effective barrier height will affect the FN tunneling current and the operation of the MOS devices when it is applied for nonvolatile memory devices.

Low effective barrier height of GaOx tunnel barrier in metal/semiconductor hybrid junctions

2009 ◽  
Vol 94 (15) ◽  
pp. 152101 ◽  
Author(s):  
J. C. Le Breton ◽  
H. Saito ◽  
S. Yuasa ◽  
K. Ando
Keyword(s):  
Barrier Height ◽  
Tunnel Barrier ◽  
Effective Barrier Height ◽  
Effective Barrier

Coordination polymers of a bis-isophthalate bridging ligand with single molecule magnet behaviour of the CoII analogue

2020 ◽  
Vol 49 (16) ◽  
pp. 5241-5249 ◽  
Author(s):  
Ali Y. Chahine ◽  
Wasinee Phonsri ◽  
Keith S. Murray ◽  
David R. Turner ◽  
Stuart R. Batten
Keyword(s):  
Coordination Polymer ◽  
Barrier Height ◽  
Coordination Polymers ◽  
Single Molecule ◽  
Single Molecule Magnet ◽  
Effective Barrier Height ◽  
Effective Barrier ◽  
Bridging Ligand

A Co(ii) coordination polymer shows SMM behaviour with an effective barrier height among the highest reported for such materials.

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