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ECE 606 L17.3: Transport - Carrier Concentration from Hall Effect
Online Presentations | 20 Jul 2023 | Contributor(s):: Gerhard Klimeck
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2D Valley-Spin Transport in Transition Metal Dichalcogenides
Online Presentations | 07 May 2020 | Contributor(s):: Zhihong Chen
In this talk, we first report that valley current can be electrically induced and detected through the valley Hall effect and inverse valley Hall effect, respectively, in monolayer molybdenum disulfide. We compare temperature and channel length dependence of non-local electrical signals in...
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How Plasmonic Materials Make Light Work at Nanoscale
Online Presentations | 16 Aug 2019 | Contributor(s):: Alexandra Boltasseva
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Nanoscale NMR Studies of Topological Insulators, Crystalline Insulators and Dirac Semimetals
Online Presentations | 22 May 2019 | Contributor(s):: Louis Bouchard
In this talk, we will review recent advances in experimental techniques to study the electronic and magnetic properties of such topological materials. Among the novel techniques, we shall discuss radioactive ion beam spectroscopy and nuclear magnetic resonance. Our group has...
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Photonic Structures with Topological Robustness: from Classical to Quantum
Online Presentations | 09 Jan 2017 | Contributor(s):: Mohammad Hafezi
In this talk, I demonstrate how similar physics can be observed for photons; specifically, how various quantum Hall Hamiltonians can be simulated in an optical platform. I report on the first observation of topological photonic edge state using silicon-on-insulator technology and our recent...
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Few-Body Insights Into the Quantum Hall Problem
Online Presentations | 05 Jan 2016
This talk will summarize insights that emerge from theoretically treating a finite number of (3-8) electrons confined to a two-dimensional plane with a magnetic field oriented transversely. This is the prototype system of strongly-correlated electrons in condensed matter physics, which...
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ECE 606 Lecture 12: High Field, Mobility, Hall Effect, Diffusion
Online Presentations | 10 Oct 2012 | Contributor(s):: Gerhard Klimeck
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ECE 606 Lecture 10: Shockley, Reed, Hall and other Recombinations
Online Presentations | 30 Sep 2012 | Contributor(s):: Gerhard Klimeck
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ECE 656 Lecture 17: Near-Equilibrium Measurements I
Online Presentations | 01 Nov 2011 | Contributor(s):: Mark Lundstrom
Outline:IntroductionResistivity / conductivity measurementsHall effect measurementsThe van der Pauw methodSummary
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ECE 656 Lecture 18: Near-Equilibrium Measurements II
Online Presentations | 01 Nov 2011 | Contributor(s):: Mark Lundstrom
Outline:ReviewThe van der Pauw methodTemperature-dependent measurementsErrors in Hall effect measurementsGraphene: a case studySummary
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Lecture 8: Measurements
Online Presentations | 16 Aug 2011 | Contributor(s):: Mark Lundstrom
A brief introduction to commonly-used techniques, such as van der Pauw and Hall effect measurements.
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Discussion Session 2 (Lectures 3 and 4)
Online Presentations | 08 Sep 2010 | Contributor(s):: Supriyo Datta
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Lecture 3: Introduction to NEGF
Online Presentations | 08 Sep 2010 | Contributor(s):: Supriyo Datta
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ECE 606 Lecture 17: Hall Effect, Diffusion
Online Presentations | 24 Feb 2009 | Contributor(s):: Muhammad A. Alam
Outline:Measurement of mobilityHall Effect for determining carrier concentrationPhysics of diffusionConclusions
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ECE 659 Lecture 7: Hall Effect II
Online Presentations | 03 Feb 2009 | Contributor(s):: Supriyo Datta
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ECE 659 Lecture 6: Hall Effect I
Online Presentations | 03 Feb 2009 | Contributor(s):: Supriyo Datta
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The Optical Freqency Comb: A Remarkable Tool for Metrology, Science and Medical Diagnostics
Online Presentations | 31 Dec 2008 | Contributor(s):: John L. Hall
The Optical Frequency Comb concept and technology exploded in 1999-2000 from the synthesis of advances in independent fields of Laser Stabilization, UltraFast Lasers, and NonLinear Optical Fibers. The Comb was developed first as a method for optical frequency measurement, enabling a thousand-fold...
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Lecture 3A: Spin Transport
Online Presentations | 20 Aug 2008 | 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 effect on device operation except to increase the conductance by a factor of two.But it is now...
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Lecture 3B: Spin Transport
Online Presentations | 20 Aug 2008 | 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 effect on device operation except to increase the conductance by a factor of two.But it is now...