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Faster Materials versus Nanoscaled Si and SiGe: A Fork in the Roadmap?
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20 Apr 2004 | | Contributor(s):: Jerry M. Woodall
Strained Si and SiGe MOSFET technologies face fundamental limits towards the end of this decade when the technology roadmap calls for gate dimensions of 45 nm headed for 22 nm. This fact, and difficulties in developing a suitable high-K dielectric, have stimulated the search for alternatives to...
Control of Exchange Interaction in a Double Dot System
05 Feb 2004 | | Contributor(s):: Mike Stopa
As Rolf Landauer observed in 1960, information is physical. As a consequence, the transport and processing of information must obey the laws of physics. It therefore makes sense to base the laws of information processing and computation on the laws of physics and in particular on quantum...
A Personal Quest for Information
19 Feb 2004 | | Contributor(s)::
This talk will report results and conclusions from my personal investigations into several different disciplines, carried out with the unifying intent of uncovering some of the fundamental principles that govern representation, processing, and the communication of information. The specific...
Digital Electronics: Fundamental Limits and Future Prospects
20 Jan 2004 | | Contributor(s)::
I will review some old and some recent work on the fundamental (and not so fundamental) limits imposed by physics of electron devices on their density and power consumption.
Bio-nanotechnology: Implications for More Effective Tissue Engineering Materials
06 Mar 2003 | | Contributor(s)::
Nanotechnology can be defined as using materials and systems whose structures and components exhibit novel and significantly changed properties by gaining control of structures at the atomic, molecular, and supramolecular levels. Although many advanced properties for materials with constituent...
Contacting Molecules - Chemistry in Molecular Electronics
12 Apr 2004 | | Contributor(s)::
The study of the basic electron transport mechanism through molecular systems has been made accessible by fabrication techniques that create metallic contacts to a small number of organic molecules. In my talk, I will discuss some of the groundbreaking discoveries such as the measurement of the...
Electronic Transport in Semi-conducting Carbon Nanotube Transistor Devices
16 Oct 2003 | | Contributor(s):: Joerg Appenzeller
Recent demonstrations of high performance carbon nanotube field-effect transistors (CNFETs) highlight their potential for a future nanotube-based electronics. Besides being just a nanometer in diameter, carbon nanotubes offer intrinsic advantages if compared with silicon that are responsible for...
Electronic Transport Through Self-Assembled Monolayers
25 Feb 2004 | | Contributor(s):: Takhee Lee
Characterization of charge transport in molecular scale electronic devices has to date shown exquisite sensitivity to specifics of device fabrication and preparation. Thus, intrinsic molecular band structure has been problematic to extract from published results. Here we demonstrate...
Macromolecular Simulation: A Computational Perspective
16 Feb 2004 | | Contributor(s):: Robert D. Skeel
The study of cold atomic gases is exploding, driven largely by the rapid experimental developments. This field has become highly interdisciplinary, connecting a great variety of interesting problems: weakly and strongly correlated quantum condensed matters, nuclear matters, and physics of low...
Molecular Electronics Pathway for Molecular Memory Devices
06 Feb 2004 | | Contributor(s)::
We have been developing a scale molecular electronic device using a 30 nm sized plant virus particle as the scaffold. This talk describes the bioengineering aspects of how the virus particle is converted to a molecular electronic circuit and its electrical characterization. The talk describes...
Nanoelectronic Scaling Tradeoffs: What does Physics Have to Say?
23 Sep 2003 | | Contributor(s):: Victor Zhirnov
Beyond CMOS, several completely new approaches to information-processing and data-storage technologies and architectures are emerging to address the timeframe beyond the current SIA International Technology Roadmap for Semiconductors (ITRS). A wide range of new ideas have been proposed for...
Nanoelectronics and the Future of Microelectronics
22 Aug 2002 | | Contributor(s):: Mark Lundstrom
Progress in silicon technology continues to outpace the historic pace of Moore's Law, but the end of device scaling now seems to be only 10-15 years away. As a result, there is intense interest in new, molecular-scale devices that might complement a basic silicon platform by providing it with...
Nanoelectronics/Mechanics With Carbon Nanotubes
26 Feb 2004 | | Contributor(s)::
In this talk, I will present efforts to understand electrical/mechanical properties of carbon nanotubes (CNTs) by combining electric transport measurements and the scanning probe microscopy.
Quantum Electromechanical Systems: Are we there yet?
05 Feb 2004 | | Contributor(s):: Andrew Cleland
Electrons moving in a conductor can transfer momentum to the lattice via collisions with impurities and boundaries, giving rise to a fluctuating mechanical stress tensor. Driving electrons out of equilibrium by applying the voltage across the conductor, one may control this electromechanical noise.
Quantum-dot Cellular Automata
24 Nov 2003 | | Contributor(s)::
The multiple challenges presented by the problem of scaling transistor sizes are all related to the fact that transistors encode binary information by the state of a current switch. What is required is a new paradigm, still capable of providing general purpose digital computation, but which can...
Structure and Ion Permeation of the Gramicidin Channel using Molecular Dynamics
Molecular dynamics (MD) has become an essential tool for obtaining microscopic insight into biological function. The gramicidin channel as an excellent benchmark system for this purpose. Using extensive MD simulations with explicit solvent and membrane, we determine the backbone structure and...
Towards a Terahertz Solid State Bloch Oscillator
29 Jan 2004 | | Contributor(s)::
The concepts of Bloch oscillation and Zener breakdown are fundamental to electron motion in periodic potentials and were described in the earliest theoretical developments of electron transport in solids. But only in the past 10 years have experiments clearly demonstrated various aspects of...
Inelastic Effects in Molecular Conduction
12 Apr 2004 | | Contributor(s):: Abraham Nitzan
Molecular electron transfer, as treated by the Marcus theory, strongly depends on nuclear motion as a way to achieve critical configurations in which charge rearrangement is possible. The electron tunneling process itself is assumed to occur in a static nuclear environment. In the application of...