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Cryogenic Strain Application to Two-Dimensional Electron Systems and the Stripe State


McGuyer, Bart Hunter (2006) Cryogenic Strain Application to Two-Dimensional Electron Systems and the Stripe State. Senior thesis (Major), California Institute of Technology. doi:10.7907/Z9251GCN.


Electrons confined to move in a plane are collectively known as a two-dimensional electron system (2DES). Engineered GaAs/AlGaAs samples are grown to create 2DESs between internal layers. At very low temperatures and in the presence of a large perpendicular magnetic field, 2DESs have lead to the discovery of striking new physics such as the various quantum Hall effects and a recently discovered anisotropic state. Characterized by a large difference between conduction along two orthogonal in-plane crystal axes, the anisotropic state is referred to as the stripe state due to the suspicion of electron density stripe pattern formation. We present progress towards probing the physics of the stripe state through in situ application of strain on GaAs/AlGaAs samples using commercial piezo-actuators. This experiment will provide further insight into the orientational mechanism that serves to align the stripe state anisotropy axes.

Item Type:Thesis (Senior thesis (Major))
Subject Keywords:anisotropic transport; quantum Hall effect; two dimensional electron systems
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Thesis Availability:Withheld
Research Advisor(s):
  • Eisenstein, James P.
Thesis Committee:
  • None, None
Defense Date:8 March 2006
Record Number:CaltechTHESIS:09212017-211130554
Persistent URL:
McGuyer, Bart Hunter0000-0001-6873-2855
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10446
Deposited By: Bart Hunter McGuyer
Deposited On:22 Sep 2017 15:44
Last Modified:26 Mar 2020 23:35

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