Fermi-Level Effect, Electric Field Effect, and Diffusion Mechanisms in GaAs Based III-V Compound Semiconductors

1998 ◽  
Vol 527 ◽  
Author(s):  
T. Y. Tan ◽  
C.-H. Chen ◽  
U. Gösele ◽  
R. Scholz
Keyword(s):  
Electric Field ◽  
Fermi Level ◽  
Point Defects ◽  
Field Effect ◽  
Pressure Effect ◽  
Electric Field Effect ◽  
Diffusion Mechanisms ◽  
And Diffusion ◽  
Level Effect

ABSTRACTDiffusion mechanisms and point defects in GaAs and related III-V compounds are discussed. An understanding of the As sublattice situation has been arrived at fairly recently and is presently tentative. Understanding of the Ga sublattice situation has become more acceptable in that experimental results are consistently explained by the Fermi-level effect and the As4 pressure effect. On the Ga sublattice, though controversies still exist, some are readily resolved by noting the role of the electric field produced by semiconductor electrical junctions, physical junctions, and surfaces.

scholarly journals Quantum Study of Symmetrical/asymmetrical Chare/Energy Transfer in a Simple Candidate Molecular Switch

2021 ◽  
Author(s):  
Hamid Hadi ◽  
Reza Safari ◽  
Hamid Reza Shamlouei
Keyword(s):  
Electric Field ◽  
Field Effect ◽  
Energy Charge ◽  
Molecular Switch ◽  
Atomic Scale ◽  
Gold Electrodes ◽  
Electric Field Effect ◽  
Molecular Systems ◽  
New Horizons

Abstract Based on molecular nanoelectronic knowledge, field-effect molecular electronic devices can be designed for use in nano-circuits. Therefore, in this study, a candidate field-effect molecular switch (isolated, M, and non-isolated, Au-M-Au/Au4-M-Au4, molecular systems) is studied, using density function/pseudopotential model (DFT/LANL2DZ). This molecular switch's switching mechanism (ON/OFF) we performed by applying an external electric field-effect. In this regard, some computational studies related to this molecular switch's electronic/vibrational transfer properties were investigated. Also, used from the quantum theory of atoms in the molecule (QTAIM), Landauer's theory (LT), and energy/charge transfer mechanisms were used at the atomic scale to predict this molecular switch's voltage-current (IV) behavior. Analysis of these results showed that when the intensity of the applied electric field increases to 0.008 au, the molecular switch is in the ON state. In addition, the role of gold electrodes on some of the electronic/vibrational properties of this molecular switch was investigated. Analysis of the results showed that gold electrodes play an essential role in the local distribution of charge and intramolecular energy and, consequently, the I/V diagram of this molecular switch. It is expected that such quantum-based research (without using numerical methods such as Green's function methods) could open new horizons in the quantum study of molecular parts at the atomic-intramolecular scale.

scholarly journals Electric field effect on the thermal conductivity of wurtzite GaN

2021 ◽  
Vol 118 (16) ◽  
pp. 162110
Author(s):  
Yujie Quan ◽  
Sheng-Ying Yue ◽  
Bolin Liao
Keyword(s):  
Thermal Conductivity ◽  
Electric Field ◽  
Field Effect ◽  
Electric Field Effect

Electric Field Effect on the Imaginary Part of the Dielectric Function in Highly Anisotropic Crystals

1974 ◽  
Vol 36 (1) ◽  
pp. 179-186 ◽  
Author(s):  
Yoshiro Sasaki ◽  
Chihiro Hamaguchi ◽  
Akihiro Morotani ◽  
Junkichi Nakai
Keyword(s):  
Electric Field ◽  
Dielectric Function ◽  
Imaginary Part ◽  
Field Effect ◽  
Electric Field Effect

Antiferromagnetism and Crystalline Electric Field Effect of Ce2Pt3Si5

2008 ◽  
Vol 77 (12) ◽  
pp. 124707 ◽  
Author(s):  
Yuji Muro ◽  
Masayuki Nakano ◽  
Kiyoichiro Motoya
Keyword(s):  
Electric Field ◽  
Field Effect ◽  
Electric Field Effect ◽  
Crystalline Electric Field
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