Comparison of Electron Transmittance and Tunneling Current through a Trapezoidal Potential Barrier with Spin Polarization Consideration by using Analytical and Numerical Approaches

Nabila, Ezra; Noor, Fatimah A.; Khairurrijal, Khairurrijal

doi:10.1088/1757-899x/214/1/012038

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2021

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(2 citation statements)

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“…The exponential wavefunction approach could be used to calculate the transmission coefficients through the potential barrier. The wavefunction solutions of each region are written as [3]:…”

Section: Theoretical Modelmentioning

confidence: 99%

“…There are several methods to calculate the transmittance, such as transfer matrix method (TMM), airy wavefunction, WKB and exponential wavefunction. Some researchers have simulated Tunnelling current; some of them are tunnelling current simulation through trapezoidal barrier potential using TMM [2] and the exponential wavefunction approach [3]. In 2015, Peng Zang modelled the tunnelling effect of the metalinsulator-metal (MIM) system, the benefits of the structure are for developing capacitor [5] and diode [6].…”

Section: Introduction 1*mentioning

confidence: 99%

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A Modelling of Tunnelling Current through a Trapezoidal Potential Barrier by Using Exponential Wavefunction Approach

Fitriyadi¹

2021

ijp

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A tunnelling current through a trapezoidal barrier potential has been modelled. The transmittance is determined using the exponential wavefunction approach method. Furthermore, the transmittance is used to calculate the tunnelling current density by applying the Gauss-Laguerre quadrature method. The simulation results show the increasing bias voltage causes the raising tunnelling current, and an increase of temperature is proportional to the tunnelling current.

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“…The exponential wavefunction approach could be used to calculate the transmission coefficients through the potential barrier. The wavefunction solutions of each region are written as [3]:…”

Section: Theoretical Modelmentioning

confidence: 99%