Electrolyte gating of nanoscale complex oxide devices

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Abstract/Contents

Abstract
Electrolyte gating is a powerful method to induce large modulations in charge carrier density at a surface. This technique enables access to unexplored regions of the phase diagram in a variety of materials, and allows for devices at charge carrier densities beyond the dielectric breakdown limit. I will show how this technique can be combined with conventional nanofabrication to create novel gate-tunable nanoscale devices. I will show that electrolyte gating can be used in combination with nanopatterned conventional gates to realize a mesoscopic 2-dimensional electron system (2DES) in strontium titanate. Universal conductance fluctuations in the strontium titanate enable analysis of the rate and the sources of electron dephasing in this system. I will also demonstrate the use of electrolyte gating to reversibly tune the critical current of Josephson junction in a high-temperature superconductor fabricated with a Helium-ion beam. Finally, I will introduce a method to prevent electrochemistry in the device channel, improving the mobility of electrolyte-gated systems and the clarity of electrolyte gating results.

Description

Type of resource text
Form electronic; electronic resource; remote
Extent 1 online resource.
Publication date 2017
Issuance monographic
Language English

Creators/Contributors

Associated with Stanwyck, Samuel Walter
Associated with Stanford University, Department of Applied Physics.
Primary advisor Goldhaber-Gordon, David, 1972-
Thesis advisor Goldhaber-Gordon, David, 1972-
Thesis advisor Hwang, Harold Yoonsung, 1970-
Thesis advisor Suzuki, Yuri, (Applied physicist)
Advisor Hwang, Harold Yoonsung, 1970-
Advisor Suzuki, Yuri, (Applied physicist)

Subjects

Genre Theses

Bibliographic information

Statement of responsibility Samuel Walter Stanwyck.
Note Submitted to the Department of Applied Physics.
Thesis Thesis (Ph.D.)--Stanford University, 2017.
Location electronic resource

Access conditions

Copyright
© 2017 by Samuel Walter Stanwyck
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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