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

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:
 [1];  [1]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES)
Publication Date:
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. Web.
Noad, Hilary, & Moler, Kathryn. Modulation of superconducting transition temperature in LaAlO3/SrTiO3 by SrTiO3 structural domains. United States.
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.
@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}
}

Program Document:
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