Lecture 4A: Energy Exchange and Maxwell's Demon

02 Sep 2008 | Online Presentations | Contributor(s): Supriyo Datta

Objective: To incorporate distributed energy exchange processes into the previous models from lectures 1 through 3 which are based on a "Landauer-like picture" where the Joule heating associated with …

https://nanohub.org/resources/5271

Introduction: Nanoelectronics and the meaning of resistance

20 Aug 2008 | Online Presentations | Contributor(s): Supriyo Datta

This lecture provides a brief overview of the five-day short course whose purpose is to introduce a unified viewpoint for a wide variety of nanoscale electronic devices of great interest for all …

https://nanohub.org/resources/5210

Lecture 1A: What and where is the resistance?

20 Aug 2008 | Online Presentations | Contributor(s): Supriyo Datta

Objective: To introduce a simple quantitative model that highlights the essential parameters that determine electrical conduction: the density of states in the channel, D and the rates at which …

https://nanohub.org/resources/5211

Lecture 1B: What and where is the resistance?

20 Aug 2008 | Online Presentations | Contributor(s): Supriyo Datta

Objective: To introduce a simple quantitative model that highlights the essential parameters that determine electrical conduction: the density of states in the channel, D and the rates at which …

https://nanohub.org/resources/5248

Lecture 2A: Quantum Transport

20 Aug 2008 | Online Presentations | Contributor(s): Supriyo Datta

Objective: To extend the simple model from Lectures 1 into the full-fledged Non-equilibrium Green’s Function (NEGF) – Landauer model by introducing a spatial grid of N points and turning numbers …

https://nanohub.org/resources/5263

Lecture 2B: Quantum Transport

20 Aug 2008 | Online Presentations | Contributor(s): Supriyo Datta

Objective: To extend the simple model from Lectures 1 into the full-fledged Non-equilibrium Green’s Function (NEGF) – Landauer model by introducing a spatial grid of N points and turning numbers …

https://nanohub.org/resources/5268

Lecture 3A: Spin Transport

20 Aug 2008 | Online Presentations | Contributor(s): Supriyo Datta

Objective: To extend the model from Lectures 1 and 2 to include electron spin. Every electron is an elementary “magnet” with two states having opposite magnetic moments. Usually this has no major …

https://nanohub.org/resources/5269

Lecture 3B: Spin Transport

20 Aug 2008 | Online Presentations | Contributor(s): Supriyo Datta

Objective: To extend the model from Lectures 1 and 2 to include electron spin. Every electron is an elementary “magnet” with two states having opposite magnetic moments. Usually this has no major …

https://nanohub.org/resources/5270

Lecture 4B: Energy Exchange and Maxwell’s Demon

20 Aug 2008 | Online Presentations | Contributor(s): Supriyo Datta

Objective: To incorporate distributed energy exchange processes into the previous models from lectures 1 through 3 which are based on a “Landauer-like picture” where the Joule heating associated …

https://nanohub.org/resources/5272

Lecture 5A: Correlations and Entanglement

20 Aug 2008 | Online Presentations | Contributor(s): Supriyo Datta

Objective: To relate the one-electron picture used throughout these lectures to the more general but less tractable many-particle picture that underlies it. We introduce this new viewpoint using the …

https://nanohub.org/resources/5273

Lecture 5B: Correlations and Entanglement

20 Aug 2008 | Online Presentations | Contributor(s): Supriyo Datta

Objective: To relate the one-electron picture used throughout these lectures to the more general but less tractable many-particle picture that underlies it. We introduce this new viewpoint using the …

https://nanohub.org/resources/5274

Nano Carbon: From ballistic transistors to atomic drumheads

14 May 2008 | Online Presentations | Contributor(s): Paul L. McEuen

Carbon takes many forms, from precious diamonds to lowly graphite. Surprisingly, it is the latter that is the most prized by nano physicists. Graphene, a single layer of graphite, can serve as an …

https://nanohub.org/resources/4398

Nanoelectronic Modeling: Multimillion Atom Simulations, Transport, and HPC Scaling to 23,000 Processors

07 Mar 2008 | Online Presentations | Contributor(s): Gerhard Klimeck

Future field effect transistors will be on the same length scales as “esoteric” devices such as quantum dots, nanowires, ultra-scaled quantum wells, and resonant tunneling diodes. In those …

https://nanohub.org/resources/3988

MCW07 A Quantum Open Systems Approach to Molecular-Scale Devices

25 Feb 2008 | Online Presentations | Contributor(s): Yongqiang Xue

Experimental advances in electrically and optically probing individual molecules have provided new insights into the behavior of single quantum objects and their interaction with the nanoenvironments …

https://nanohub.org/resources/3090

MCW07 Physics of Contact Induced Current Asymmetry in Transport Through Molecules

25 Feb 2008 | Online Presentations | Contributor(s): Bhaskaran Muralidharan, Owen D. Miller, Neeti Kapur, Avik Ghosh, Supriyo Datta

We first outline the qualitatively different physics involved in the charging-induced current asymmetries in molecular conductors operating in the strongly coupled (weakly interacting) …

https://nanohub.org/resources/3073

Exploring Physical and Chemical control of molecular conductance: A computational study

31 Jan 2008 | Online Presentations | Contributor(s): Barry D. Dunietz

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https://nanohub.org/resources/3945

Can numerical “experiments” INSPIRE physical experiments?

20 Dec 2007 | Online Presentations | Contributor(s): Supriyo Datta

This presentation was one of 13 presentations in the one-day forum, "Excellence in Computer Simulation," which brought together a broad set of experts to reflect on the future of computational …

https://nanohub.org/resources/3716

NanoElectronic MOdeling: NEMO

20 Dec 2007 | Online Presentations | Contributor(s): Gerhard Klimeck

This presentation was one of 13 presentations in the one-day forum, "Excellence in Computer Simulation," which brought together a broad set of experts to reflect on the future of computational …

https://nanohub.org/resources/3707

Engineering at the nanometer scale: Is it a new material or a new device?

06 Nov 2007 | Online Presentations | Contributor(s): Gerhard Klimeck

This seminar will overview NEMO 3D simulation capabilities and its deployment on the nanoHUB as well as an overview of the nanoHUB impact on the community.

https://nanohub.org/resources/3504

MCW07 Modeling Molecule-Assisted Transport in Nanotransistors

06 Nov 2007 | Online Presentations | Contributor(s): Kamil Walczak

Molecular electronics faces many problems in practical device implementation, due to difficulties with fabrication and gate-ability. In these devices, molecules act as the main conducting channel. …

https://nanohub.org/resources/3074