EFFECT OF APPLIED BIAS ON TRANSMISSION PROPERTIES OF DIMER FIBONACCI SUPERLATTICES

2009 ◽  
Vol 23 (19) ◽  
pp. 2409-2420 ◽  
Author(s):  
Z. AZIZ ◽  
S. BENTATA ◽  
R. DJELTI ◽  
E. ALANDALOUSSI
Keyword(s):  
Transfer Matrix ◽  
Airy Function ◽  
Linear Variation ◽  
Applied Bias ◽  
Transmission Properties ◽  
Function Formalism

In this study, we have numerically examined the effect of applied bias on the transmission across dimer fibonacci height barrier superlattices (DFHBSLs) by using the exact Airy function formalism and the transfer matrix technique. Formation of miniband structure was observed, and its width showed a linear variation with the applied bias.

Optimization of Transfer Matrix Method and Transmission Properties of Graphene-Hyperbolic Metamaterials

2019 ◽  
Vol 56 (4) ◽  
pp. 041602
Author(s):  
袁沭娟 Yuan Shujuan ◽  
许吉 Xu Ji ◽  
李洋 Li Yang ◽  
刘山峰 Liu Shanfeng ◽  
陆昕怡 Lu Xinyi ◽  
...  
Keyword(s):  
Transfer Matrix ◽  
Transfer Matrix Method ◽  
Matrix Method ◽  
Hyperbolic Metamaterials ◽  
Transmission Properties

Bias-Dependent Magnetoresistance Device Based on a Magnetically Confined GaAs/AlxGa1– xAs Heterostructure

2020 ◽  
Vol 15 (3) ◽  
pp. 325-330
Author(s):  
Dong-Hui Liang ◽  
Mao-Wang Lu ◽  
Xin-Hong Huang ◽  
Meng-Rou Huang ◽  
Zeng-Lin Cao
Keyword(s):  
Transfer Matrix ◽  
Transfer Matrix Method ◽  
Matrix Method ◽  
Information Storage ◽  
Applied Bias ◽  
Significant Difference ◽  
Magnetically Confined ◽  
Magnetoresistance Ratio ◽  
Mr Effect

We apply a bias to a magnetoresistance (MR) device, which is constructed on surface of GaAs/AlxGa1– xAs heterostructure by patterning two asymmetric ferromagnetic stripes. Using improved transfer matrix method and Landauer–Büttiker theory, bias-dependent transmission, conductance and magnetoresistance ratio are calculated numerically. An obvious MR effect appears, because of a significant difference of transmission or conductance between parallel (P) and antiparallel (AP) magnetization configurations. MR ratio can be tuned by adjusting magnitude or direction of applied bias. These interesting features not only propose an alternative way to control MR effect, but also put forward an electrically-tunable MR device for magnetic information storage.

Transmission properties of multilayered Period Doubling and Silver-Mean graphene structures

2012 ◽  
Vol 1371 ◽  
Author(s):  
G. Rodríguez-Arellano ◽  
D. P. Juárez-López ◽  
J. Madrigal-Melchor ◽  
R. Pérez-Álvarez ◽  
J. C. Martínez-Orozco ◽  
...  
Keyword(s):  
Graphene Sheet ◽  
Transfer Matrix ◽  
Period Doubling ◽  
Substitution Rule ◽  
Transmission Properties ◽  
Silver Mean ◽  
Propagation Properties ◽  
Graphene Structures ◽  
Breaking Symmetry

ABSTRACTWe present the propagation properties of Dirac-electrons in multilayered Period-Doubling (MPDGS) and Silver-Mean (MSMGS) graphene structures. The multilayered graphene structures are built arranging breaking and non-breaking symmetry substrates such as SiC and SiO2 following a given quasirregular substitution rule locating on them a graphene sheet. We have implemented the Transfer Matrix technique to calculate the transmittance of these multilayered graphene structures. This technique allows us to analyze readily the main differences of the transmission properties between MPDGS and MSMGS.

Occurence of Characteristic Peaks in Phononic Multilayer Structures

2018 ◽  
Vol 69 (3) ◽  
pp. 735-738
Author(s):  
Sebastian Garus ◽  
Michal Szota
Keyword(s):  
Transfer Matrix ◽  
Transfer Matrix Method ◽  
Matrix Method ◽  
Multilayer Structures ◽  
Acoustic Transmission ◽  
Transmission Properties ◽  
Number Of Layers

In this paper the acoustic transmission properties of multilayer structures was analyzed. Were compared binary and aperiodic (Severin, Thue-Morse) superlattices, Calculations were performed using the Transfer Matrix Method (TMM) algorithm. As a superlattice environment in the simulation the water was used. The material used to construct the structure was a PNM-0.38PT piezoelectric. Multilayer types have been selected so that the total number of layers for a given generation is equal in all structures.

Electrically-tunable magnetoresistance effect in magnetically modulated semiconductor heterostructure

2020 ◽  
Vol 34 (04) ◽  
pp. 2050011
Author(s):  
Yong-Hong Kong ◽  
Xu-Hui Liu ◽  
Yan-Jun Gong ◽  
Ai-Hua Li
Keyword(s):  
Transfer Matrix ◽  
Transfer Matrix Method ◽  
Matrix Method ◽  
Theoretical Study ◽  
Magnetoresistance Effect ◽  
Applied Bias ◽  
Semiconductor Heterostructure ◽  
Conductance Theory ◽  
Significant Difference ◽  
Mr Effect

We report on a theoretical study of magnetoresistance (MR) effect in a magnetically modulated semiconductor heterostructure (MMSH) under an applied bias, which can be constructed on surface of [Formula: see text] heterostructure by depositing two asymmetric ferromagnetic (FM) stripes. Bias-dependent transmission and conductance are calculated numerically, on the basis of both improved transfer matrix method (ITMM) and Landauer–Büttiker conductance theory. An obvious MR effect appears because of a significant difference of transmission between parallel and antiparallel (AP) magnetization configurations. Moreover, MR ratio can be tuned by the bias. These interesting features not only provide an alternative way to manipulate MR effect, but also may lead to an electrically-controllable MR device.

WATER WAVE PROPAGATING IN ONE-DIMENSIONAL COMBINATION BOTTOM SYSTEMS

2010 ◽  
Vol 24 (11) ◽  
pp. 1463-1470 ◽  
Author(s):  
YANTING YANG ◽  
YANMING YANG ◽  
YU JUN ZHAO ◽  
JING CHENG
Keyword(s):  
Transfer Matrix ◽  
Transfer Matrix Method ◽  
Matrix Method ◽  
Water Wave ◽  
Numerical Results ◽  
Wave Transmission ◽  
Band Gaps ◽  
Frequency Spectra ◽  
One Dimensional ◽  
Transmission Properties

The water wave transmission properties and the frequency spectra of one-dimensional combination bottom of water and mercury with different filling fractions are studied by the transfer matrix method. For the periodic bottoms (PBs), the effect of the steps' numbers and the width on the band gaps are discussed. Each of whole band gaps is the juxtaposition of the gaps of three kinds of PBs, without covering. The numerical results show that the band gaps could be enlarged effectively by choosing the steps' width properly.

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