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The Elusive Spin Transistor
11 Apr 2011 | | Contributor(s):: Supriyo Datta
This presentation is a short introductory tutorial on spin-transistors.
Control of Spin Precession in a Datta-Das Transistor Structure
11 Apr 2011 | | Contributor(s):: Hyun Cheol Koo
Transistors Switch onto Spin Using the spin of an electron in addition to, or instead of, the charge properties is believed to have many benefits in terms of speed, power-cost, and integration density over conventional electronic circuits. At the heart of the field of spintronics has been a...
Emerging Opportunities, Challenges, and Applications in Exascale Computing
10 Mar 2011 | | Contributor(s):: Ananth Grama
The move towards exascale computing platforms (capable of 10^18 floating point operations) poses tremendous challenges, while presenting opportunities for foundational advances in a variety of application domains. In this talk, I will describe various technical issues that must be overcome to...
Levitated Spinning Graphene
18 Jan 2011 | | Contributor(s):: Bruce E. Kane
I will describe a method for levitating micron-sized few layer graphene flakes in a quadrupole ion trap. Starting from a liquid suspension containing graphene, charged flakes are injected into the trap using the electrospray ionization technique and are probed optically.
Closed | Responses: 1
pls give me research scope to do ph.d in this emerging field
Translational Research in Nano and Bio Mechanics
18 Nov 2010 | | Contributor(s):: Ken P. Chong
One of the most challenging problems is the integration and interface between wet (biological) and dry (structural) materials. Nano and bio science and engineering is one of the frontiers in transformative and translational research. The transcendent technologies include nanotechnology,...
Chemically Enhanced Carbon-Based Nanomaterials and Devices
09 Nov 2010 | | Contributor(s):: Mark Hersam
Carbon-based nanomaterials have attracted significant attention due to their potential to enable and/or improve applications such as transistors, transparent conductors, solar cells, batteries, and biosensors. This talk will delineate chemical strategies for enhancing the electronic and optical...
Limits of Thermal Processes and their Implications on Efficient Energy Utilization
27 Oct 2010 | | Contributor(s):: Arunava Majumdar
About 90 percent of the world’s energy use involves thermal processes – thermal engines to generate mechanical power; heating and cooling in buildings; heating involved in manufacturing of steel, cement, glass, petrochemicals etc. To identify opportunities for improving current technologies or...
Fun in the Sand: Some Experiments in Granular Physics
25 Oct 2010 | | Contributor(s):: Peter E. Schiffer
In the last two decades, condensed matter physicists have begun an intense study of the dynamic and static properties of granular media (materials made from individual acroscopic solid grains). These materials offer a vast arena of new physical phenomena which are highly accessible and largely...
Electric and Magnetic Properties of Multiferroic Oxide Thin Films and Heterostructures
20 Oct 2010 | | Contributor(s):: Pedro Antonio Prieto
Outline:IntroductionPreparation methods for oxide thin filmsOxide thin films and heterostructures Multiferroic materialsBiFeO3, YMnO3, BiMnO3 thin films and FE/FM CompositesConclusions
TiCN/TiNbCN Multilayer System with Enhanced Tribological Properties
Improvement in the mechanical properties of hard coatings such monolayer (TiN, CrN, AlCN, WC-Co, TiCN) , has been achieved using compositional gradient WC/C layer, or multilayered type [transition metal/transition carbide]n, [transition metal/transition nitride]n, [TiCN/ZrCN]n, among others....
Addressing Molecular Dynamics Time-scale Issues to Study Atomic-scale Friction
12 Oct 2010 | | Contributor(s):: Ashlie Martini
This presentation will include an introduction to several accelerated molecular dynamics methods. However, particular focus will be given to parallel replica (ParRep) dynamics in which atomistic simulations are run parallel in time to extend their total duration. The ParRep method is based on...
Thermal Transport in Nanostructured Materials: Working to Improve Efficiency in the Field of Thermoelectrics
08 Jul 2010 | | Contributor(s):: Suzanne Singer
This talk discusses the performance of nanostructured thin films as a potentialmaterial for thermoelectric energy conversion applications, as well as thematerial composition variations that can provide guidelines for finding lowvalues of thermal conductivity.
Ripples and Warping of Graphene: A Theoretical Study
08 Jun 2010 | | Contributor(s):: Umesh V. Waghmare
We use first-principles density functional theory based analysis to understand formation of ripples in graphene and related 2-D materials. For an infinite graphene, we show that ripples are linked with a low energy branch of phonons that exhibits quadratic dispersion at long wave-lengths. Many...
Peanuts vs. Pyramids: Two Perspectives on MEMS
29 Dec 2009 | | Contributor(s):: Stephen D. Senturia
MEMS, the acronym for Micro-electromechanical Systems, also known simply as “Micro-systems,” come in two main types: commodity products (the peanuts) and MEMS-enabled products (the pyramids, or, more correctly, the inverted pyramids). The economics of scale greatly affect how these two classes...
Characterizing and scaffolding students' conceptions of size and scale
29 Dec 2009 | | Contributor(s):: Alejandra J. Magana
Scale concepts transcend disciplinary boundaries of science, mathematics, engineering, and technology because they are essential for performing explanations, theory generation, observation, and activities associated with design. Current research related to size and scale has identified several...
Molecular Sensors for MEMS
10 Dec 2009 | | Contributor(s):: John P. Sullivan
This seminar will cover the issues involved in using molecular sensors in MEMS and their application to microchannels, supersonic micronozzles, microjet impingement, microturbines and unsteady fluidic actuators.
Birck Nanotechnology Center Annual Research Review: 2009
02 Dec 2009 | | Contributor(s):: Timothy D. Sands
The Third Annual Birck Nanotechnology Center Research Symposium was held on April 6, 2009 in Purdue's Discovery Park. Along with poster presentations by graduate students and postdoctoral researchers, several areas of strength were highlighted in the overview presentations made available here.
Liquid Transportation Fuels from Coal and Biomass
01 Dec 2009 | | Contributor(s):: Michael R. Ladisch
Report on the National Academies’ America’s Energy Future Study 2009.
Pioneers in Energy Seminar Series
01 Dec 2009 |
This Purdue University, West Lafayette campus speaker series supports lectures & visits by leaders in the field of energy research with the goal of increasing understanding of specific energy challenges and building a stronger Purdue energy research community.