Download presentation

Presentation is loading. Please wait.

Published byCharles Stanley Modified over 3 years ago

1
**Coulomb Drag in a Strongly Correlated Double Layer 2D Electron System**

Melinda Kellogg James Eisenstein Loren Pfeiffer Ken West

2
**Coulomb Drag V I e- e- e- e- Al0.9Ga0.1As nlayer = 5.3 x1010 cm-2**

~ 106 cm2/V•s GaAs GaAs 180Å 99Å 180Å

3
**Bilayer QHE Phase Diagram**

__ d l Tunneling Murphy et al., 1994

4
**Temperature Dependence in Zero Field**

Deviation from quadratic behavior -- no phonon peak

5
**Above Tc, Pairing Fluctuations**

Kim, Nayak, Demler & Das Sarma 2000 Bonesteel, McDonald, Above Tc, Pairing Fluctuations Ussishkin & Stern, 1998

6
**Summary the drag resistivity at ntotal = 1.**

We have discovered an enhancement in the drag resistivity at ntotal = 1. This enhancement appears well above the bilayer QHE phase boundary. This enhancement persists when the layer densities are unbalanced.

Similar presentations

OK

The identification of the fluctuation effects related to the turbulence and “permanent” layers in the atmosphere of Venus from radio occultation data V.N.Gubenko.

The identification of the fluctuation effects related to the turbulence and “permanent” layers in the atmosphere of Venus from radio occultation data V.N.Gubenko.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Download ppt on respiration in humans Ppt on bluetooth hacking softwares Ppt on culture of rajasthan Ppt on post abortion care Ppt on polynomials of 98 Ppt on different solid figures video Ppt on ms access query Ppt on polynomials and coordinate geometry problems Ppt on campus recruitment system Hypothalamus anatomy and physiology ppt on cells