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Spatially inhomogeneous electron state deep in the extreme quantum limit of strontium titanate

Title: Spatially Inhomogeneous Electron State Deep In The Extreme Quantum Limit Of Strontium Titanate.
Name(s): Bhattacharya, Anand, author
Skinner, Brian, author
Khalsa, Guru, author
Suslov, Alexey V., author
Type of Resource: text
Genre: Text
Date Issued: 2016-09
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: When an electronic system is subjected to a sufficiently strong magnetic field that the cyclotron energy is much larger than the Fermi energy, the system enters the extreme quantum limit (EQL) and becomes susceptible to a number of instabilities. Bringing a three-dimensional electronic system deeply into the EQL can be difficult however, since it requires a small Fermi energy, large magnetic field, and low disorder. Here we present an experimental study of the EQL in lightly-doped single crystals of strontium titanate. Our experiments probe deeply into the regime where theory has long predicted an interaction-driven charge density wave or Wigner crystal state. A number of interesting features arise in the transport in this regime, including a striking re-entrant nonlinearity in the current-voltage characteristics. We discuss these features in the context of possible correlated electron states, and present an alternative picture based on magnetic-field induced puddling of electrons.
Identifier: FSU_libsubv1_wos_000385388600001 (IID), 10.1038/ncomms12974 (DOI)
Keywords: doped srtio3, field-induced localization, gas, ground-state, insb, Magnetoresistance, metal-insulator-transition, phase-transition, strong magnetic-field, wigner transition
Publication Note: The publisher’s version of record is available at
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Owner Institution: FSU
Is Part Of: Nature Communications.
Issue: vol. 7

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Bhattacharya, A., Skinner, B., Khalsa, G., & Suslov, A. V. (2016). Spatially Inhomogeneous Electron State Deep In The Extreme Quantum Limit Of Strontium Titanate. Nature Communications. Retrieved from