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Optical MNIST dataset
21 Apr 2022 | | Contributor(s):: Hanyu Zheng
Rapid advances in deep learning have led to paradigm shifts in a number of fields, from medical image analysis to autonomous systems. These advances, however, have resulted in digital neural networks with large computational requirements, resulting in high energy consumption and limitations in...
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A Circuit-compatible SPICE Model for Phase-field Simulations of Multi-domain Ferroelectrics
17 May 2021 | | Contributor(s):: Chia-Sheng Hsu, Sou-Chi Chang, Dmitri Nikonov, Ian Alexander Young, Azad Naeemi
To describe the multi-domain FE switching dynamics, we present a circuit-compatible model that can solve the time-dependent Ginzburg-Landau (TDGL) equation and Poisson’s equation self-consistently in three-dimensional space with the SPICE simulator. In addition, the FE domain structures...
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Image Analysis Program for Quantifying Nanosphere Lithography Packing Defects
21 Jul 2020 | | Contributor(s):: Takara Truong, Roseanne Warren
This download resource provides MATLAB code files for scanning electron microscopy image analysis of nanosphere packing defects. The program enables users to estimate the total number of nanospheres in an image, the number of non-hexagonally close-packed (HCP) spheres, and the % of spheres...
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FeFET Memory Window Analytical Calculator
16 Dec 2019 | | Contributor(s):: Nicolo Zagni, Paolo Pavan, Muhammad A. Alam
This code computes the Memory Window of a FeFET by using the Landau-Devonshire theory. The aim of this code is to illustrate: the derivation of the switching conditions the trends of MW scaling with ferroelectric thickness the design constraints to guarantee hysteresis the effect of...
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Suns-Vmp Method
04 Jun 2018 | | Contributor(s):: Xingshu Sun, Raghu Vamsi Krishna Chavali, Muhammad A. Alam
This package contains the Matlab scripts to perform the Suns-Vmp method. The code has been tested in Matlab R2016a.
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AIDA: A tool for exhaustive enumeration of solutions to the quantized Frank-Bilby equation
08 Jan 2018 | | Contributor(s):: Ali Sangghaleh, Michael J. Demkowicz
We present a tool called Arrangement of Interface Dislocation Arrays (AIDA) for enumerating all dislocation networks that satisfy the quantized Frank-Bilby equation for any interface between cubic crystals with a single-atom basis, i.e. FCC/FCC, BCC/BCC, and FCC/BCC interfaces. The set of...
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Hydrogel based Biochemical Sensors
08 Jul 2016 | | Contributor(s):: Piyush Dak, Muhammad A. Alam
This is MATLAB code for a Hydrogel based biochemical sensor: The sensor is composed of a hydrogel sandwiched between a rigid porous membrane and a deformable membrane. The hydrogel is pendent with the ionizable groups (with density, Nf and acid dissociation constant, Ka) which are...
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A Graphene nanoribbon Feld-effect transistor Modeling
11 Feb 2015 | | Contributor(s):: Mohamed Zakarya Rashed
We present an analytical device model for a field-effect transistor based on a heterostructure which consists of an array of nanoribbons clad between the highly conducting substrate (the back gate) and the top gate controlling the source-drain current. The equations of the model of a graphene...
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Eckart Inertias
29 May 2014 | | Contributor(s):: Bryan M. Wong
Eckart Inertias: calculates effective Eckart inertias for large-amplitude torsions. The Eckart inertias are obtained by solving a system of transcendental equations using the Powell dogleg method. Since this system is highly nonlinear, analytical Jacobians have been implemented in the dogleg...
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Pitzer Inertias
29 May 2014 | | Contributor(s):: Bryan M. Wong
Pitzer Inertias: calculates effective Pitzer inertias for large-amplitude torsions
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Mandelbrotx
29 May 2014 | | Contributor(s):: Bryan M. Wong
Mandelbrotx: plots interesting Mandelbrot-like sets. These codes make pretty nice pictures.
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Franck-Condon Overlap Integrals
29 May 2014 | | Contributor(s):: Bryan M. Wong
Franck-Condon Overlap Integrals: calculates the vibrational overlap integral between two nuclear wavefunctions using the formalism developed by Sharp and Rosenstock [J. Chem. Phys., 41, 3453 (1964)].
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PAMELA (Pseudospectral Analysis Method with Exchange & Local Approximations)
29 May 2014 | | Contributor(s):: Bryan M. Wong
PAMELA (Pseudospectral Analysis Method with Exchange & Local Approximations): calculates electronic energies, densities, wavefunctions, and band-bending diagrams for core-shell nanowires within a self-consistent Schrodinger-Poisson formalism.
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Modeling Electronic/Vibronic Coupling in Multi-Chromophores
06 Sep 2013 | | Contributor(s):: Benjamin Nebgen, Lyudmila V. Slipchenko
This program computes emission and absorption spectra for molecular systems with multiple chromophores where nearly degenerate excited states cause coupling between electronic and vibrational degrees of freedom. The original theory for symmetric bichromophores was created by Witkowski and...
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MOSCNT: code for carbon nanotube transistor simulation
14 Nov 2006 | | Contributor(s):: Siyu Koswatta, Jing Guo, Dmitri Nikonov
Ballistic transport in carbon nanotube metal-oxide-semiconductor field-effect transistors (CNT-MOSFETs) is simulated using the Non-equilibrium Green’s function formalism. A cylindrical transistor geometry with wrapped-around gate and doped source/drain regions are assumed. It should be noted that...
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recursive algorithm for NEGF in Matlab
13 Nov 2006 | | Contributor(s):: Dmitri Nikonov, Siyu Koswatta
This zip-archive contains two Matlab functions for the recursive solution of the partial matrix inversion and partial 3-matrix multiplication used in the non-equilibrium Green’s function (NEGF) method.recuresealg3d.m- works for 3-diagonal matricesrecuresealgblock3d.m- works for 3-block-diagonal...
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MATLAB Scripts for "Quantum Transport: Atom to Transistor"
15 Mar 2005 | | Contributor(s):: Supriyo Datta
Tinker with quantum transport models! Download the MATLAB scripts used to demonstrate the physics described in Supriyo Datta's book Quantum Transport: Atom to Transistor. These simple models are less than a page of code, and yet they reproduce much of the fundamental physics observed in...