Interface-charge-coupled polarization response of Pt-ZnO-BaTiO3-ZnO-Pt heterostructures: Three-layer model expansion

2008 ◽  
Author(s):  
Venkata M. Voora ◽  
Tino Hofmann ◽  
Matthias Brandt ◽  
Michael Lorenz ◽  
Marius Grundmann ◽  
...  
Keyword(s):  
Layer Model ◽  
Interface Charge ◽  
Polarization Response ◽  
Model Expansion

Interface-Charge-Coupled Polarization Response of Pt-BaTiO3-ZnO-Pt Heterojunctions: A Physical Model Approach

2008 ◽  
Vol 37 (7) ◽  
pp. 1029-1034 ◽  
Author(s):  
Venkata M. Voora ◽  
T. Hofmann ◽  
M. Brandt ◽  
M. Lorenz ◽  
M. Grundmann ◽  
...  
Keyword(s):  
Physical Model ◽  
Interface Charge ◽  
Polarization Response ◽  
Model Approach

Interface-charge-coupled polarization response model of Pt-BaTiO3-ZnO-Pt heterojunctions: Physical parameters variation

2008 ◽  
Vol 1074 ◽  
Author(s):  
Venkata Voora ◽  
Tino Hofmann ◽  
Ann Kjerstad ◽  
Matthias Brandt ◽  
Michael Lorenz ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Wurtzite Structure ◽  
Physical Parameters ◽  
Ionic Charge ◽  
Interface Charge ◽  
Polarization Response ◽  
Device Applications ◽  
Physical Attributes ◽  
Common Interface ◽  
Model Approach

ABSTRACTHeterojunctions composed of wurtzite-structure (piezoelectric) ZnO and perovskite-structure (ferroelectric) BaTiO3 are very interesting because of the coupling effects between the non-switchable ionic charge of wurtzite-structure and electrically switchable lattice charge of pervoskite structure at their common interface. In this paper we report the variations in the overall electrical properties of the ZnO-BaTiO3 heterostructure as a function of different physical attributes by using our previously reported physical model approach. This numerical model analysis helps us to prepare the samples by using pulsed laser deposition with specific electrical properties. This study is also useful for the future device applications.

Scaling leaf photosynthesis to canopy in a mixed deciduous forest. I. model description

1997 ◽  
Vol 62 ◽  
Author(s):  
R. Samson ◽  
S. Follens ◽  
R. Lemeur
Keyword(s):  
Temperature Dependence ◽  
Quercus Robur ◽  
Deciduous Forest ◽  
Growing Season ◽  
Model Description ◽  
Canopy Photosynthesis ◽  
Leaf Photosynthesis ◽  
Layer Model ◽  
Mixed Deciduous Forest ◽  
Leaf Level

A  multi-layer model (FORUG) was developed, to simulate the canopy  photosynthesis of a mixed deciduous forest during the growing season.  Measured photosynthesis parameters, for beech (Fagus  sylvatica), oak (Quercus  robur) and ash (Fraxinus  excelsior), were used as input to the model. This  information at the leaf level is then scaled up to the level of the canopy,  taking into account the radiation profiles (diffuse and direct PAR) in the  canopy, the vertical LAI distribution, the evolution of the LAI and the  photosynthesis parameters during the growing season, and the temperature  dependence of the latter parameters.

Coherent structures of nonlinear barotropic-baroclinic interaction in unequal depth two-layer model

2021 ◽  
Vol 408 ◽  
pp. 126347
Author(s):  
Jiaqi Zhang ◽  
Ruigang Zhang ◽  
Liangui Yang ◽  
Quansheng Liu ◽  
Liguo Chen
Keyword(s):  
Coherent Structures ◽  
Layer Model ◽  
Two Layer Model
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