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

2018/05/22 by Hilary Noad, Noad, Hilary, Wittlich, Pascal +2 · 1 citation
Materials Science · #Electronic and Structural Properties of Oxides #FOS: Physical sciences #Machine Learning in Materials Science #Magnetic and transport properties of perovskites and related materials #Materials Science (cond-mat.mtrl-sci) #Superconductivity (cond-mat.supr-con)

paper · pdf · doi:10.48550/arxiv.1805.08549

openalex publication_date 2018/05/22 · openalex created_date 2022/10/03 · openalex updated_date 2026/07/28

Abstract

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

Cited by

• Time-Reversal Symmetry Protected Transport at Correlated Oxide Interfaces

Related

• Stoichiometric control of electron mobility and 2D superconductivity at LaAlO₃-SrTiO₃ interfaces
• Phase Diagram of Micron-Size Bridges of SrTiO₃/LaAlO₃ Interface: Link Between Multiple Band Structure and Superconductivity
• Impact of the spin-orbit interaction on the phase diagram and anisotropy of the in-plane critical magnetic field in superconducting LaAlO₃/SrTiO₃ interface
• Theory of Superconductivity at the LaAlO3/SrTiO3 heterointerface: Electron pairing mediated by deformation of ferroelastic domain walls
• Two-dimensional superconductivity at (110) LaAlO3/SrTiO3 interfaces