Modulation of superconducting transition temperature in LaAlO3/SrTiO3 by SrTiO3 structural domains

Title: Modulation of superconducting transition temperature in LaAlO3/SrTiO3 by SrTiO3 structural domains

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Abstract

The tetragonal domain structure in SrTiO3 (STO) is known to modulate the normal-state carrier density in LaAlO3/SrTiO3 (LAO/STO) heterostructures, among other electronic properties, but the effect of STO domains on the superconductivity in LAO/STO has not been fully explored. Using a scanning SQUID susceptometer microscope to map the superconducting response as a function of temperature in LAO/STO, we find that the superconducting transition temperature is spatially inhomogeneous and modulated in a pattern that is characteristic of structural domains in the STO.

Authors:

Noad, Hilary ^[1]; Moler, Kathryn ^[1]

SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES)

Publication Date:: 2018-01-01

Research Org.:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division

OSTI Identifier:: 1438181

DOE Contract Number:: AC02-76SF00515

Resource Type:: Program Document

Country of Publication:: United States

Language:: English

Subject:: superconductivity,complex oxide heterostructures, transition temperature, structural domains

Citation Formats


                    Noad, Hilary, and Moler, Kathryn. Modulation of superconducting transition temperature in LaAlO3/SrTiO3 by SrTiO3 structural domains.  United States: N. p., 2018. 
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                    Noad, Hilary, & Moler, Kathryn. Modulation of superconducting transition temperature in LaAlO3/SrTiO3 by SrTiO3 structural domains.  United States.

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                    Noad, Hilary, and Moler, Kathryn. Mon .  
        "Modulation of superconducting transition temperature in LaAlO3/SrTiO3 by SrTiO3 structural domains".  United States.  https://www.osti.gov/servlets/purl/1438181.

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@article{osti_1438181,

  title        = {Modulation of superconducting transition temperature in LaAlO3/SrTiO3 by SrTiO3 structural domains},

  author       = {Noad, Hilary and Moler, Kathryn},

  abstractNote = {The tetragonal domain structure in SrTiO3 (STO) is known to modulate the normal-state carrier density in LaAlO3/SrTiO3 (LAO/STO) heterostructures, among other electronic properties, but the effect of STO domains on the superconductivity in LAO/STO has not been fully explored. Using a scanning SQUID susceptometer microscope to map the superconducting response as a function of temperature in LAO/STO, we find that the superconducting transition temperature is spatially inhomogeneous and modulated in a pattern that is characteristic of structural domains in the STO.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2018},

  month        = {1}

}

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