Exponential size-dependent tunability of strain on the transport behavior in ZnO tunnel junctions: an ab initio study

2015 ◽  
Vol 17 (38) ◽  
pp. 25583-25592 ◽  
Author(s):  
Jia Zhu ◽  
W. J. Chen ◽  
G. H. Zhang ◽  
Yue Zheng
Keyword(s):  
Ab Initio ◽  
Tunnel Junction ◽  
Tunnel Junctions ◽  
Ab Initio Study ◽  
Interesting Issue ◽  
Size Dependent ◽  
Transport Behavior ◽  
Mechanical Sensors ◽  
Exponential Size ◽  
External Strain

It is an interesting issue if the transport behavior of a piezoelectric tunnel junction is sensitive to external strain or stress, and it implies a prospect for developing novel mechanical sensors, transducers, piezotronic devices, etc.

An ab initio study of the size-dependent mechanical behavior of single-walled AlN nanotubes

2015 ◽  
Vol 45 ◽  
pp. 30-34 ◽  
Author(s):  
Jun-Hua Hao ◽  
Yu-Fang Wang ◽  
Yu-Hua Yin ◽  
Run Jiang ◽  
Yun-Feng Wang ◽  
...  
Keyword(s):  
Mechanical Behavior ◽  
Ab Initio ◽  
Ab Initio Study ◽  
Size Dependent

How Many Fe layers Cause TMR?

2006 ◽  
Vol 941 ◽  
Author(s):  
Christian Heiliger ◽  
Peter Zahn ◽  
Ingrid Mertig
Keyword(s):  
Electronic Structure ◽  
Ab Initio ◽  
Structural Properties ◽  
Spin Polarization ◽  
Tunnel Junction ◽  
Tunnel Junctions ◽  
Tunneling Current ◽  
Electronic Structure Calculations ◽  
High Spin Polarization ◽  
Structure Calculations

ABSTRACTThe influence of the structural properties of the leads of planar tunnel junctions on the tunneling current is investigated by means of ab initio electronic structure calculations. In particular, a NM/Fe/MgO/Fe/NM tunnel junction with non-magnetic (NM) leads and finite Fe spacer layers between the leads and the MgO barrier is discussed. The conductance is calculated as a function of the number of Fe layers. The results show that even one iron layer next to the barrier is sufficient to obtain a high spin polarization and a high TMR ratio. This finding implies that similar results can be expected for tunnel junctions with nonmagnetic and even amorphous leads, if states of Δ1 symmetry are provided.

Size-dependent structural and electronic properties of ZnS nanofilms: An ab initio study

2010 ◽  
Vol 108 (6) ◽  
pp. 064317 ◽  
Author(s):  
Xuejuan Zhang ◽  
Hongyu Zhang ◽  
Tao He ◽  
Mingwen Zhao
Keyword(s):  
Ab Initio ◽  
Electronic Properties ◽  
Ab Initio Study ◽  
Size Dependent ◽  
Structural And Electronic Properties

Diverse polarization bi-stability in ferroelectric tunnel junctions due to the effects of the electrode and strain: an ab initio study

2017 ◽  
Vol 19 (30) ◽  
pp. 20147-20159 ◽  
Author(s):  
G. L. Jiang ◽  
W. J. Chen ◽  
Biao Wang ◽  
Jian Shao ◽  
Yue Zheng
Keyword(s):  
Ab Initio ◽  
Tunnel Junctions ◽  
Ab Initio Study ◽  
Comprehensive View

More than 1000 structures were calculated to provide a comprehensive view on the electrode- and strain-controlling polarization stability in FTJs.

An ab initio study of Se-reacted GaAs(0 0 1) surfaces

1998 ◽  
Vol 184-185 (1-2) ◽  
pp. 80-84 ◽  
Author(s):  
W Faschinger
Keyword(s):  
Ab Initio ◽  
Ab Initio Study
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