Bulletin of the American Physical Society
APS March Meeting 2018
Volume 63, Number 1
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session V09: Complex Oxide Heterostructures - Multiferroic Effects and Metal-Insulator Transitions
2:30 PM–5:30 PM,
Thursday, March 8, 2018
LACC
Room: 301A
Sponsoring
Unit:
DMP
Chair: Anderson Janotti, University of Delaware
Abstract ID: BAPS.2018.MAR.V09.11
Abstract: V09.00011 : Disorder-free electrochemical doping of charge carriers into epitaxial La2CuO4+y films
4:54 PM–5:06 PM
Presenter:
Alex Frano
(Physics, University of California, San Diego)
Authors:
Alex Frano
(Physics, University of California, San Diego)
Martin Bluschke
(Max Planck Institute for Solid State Research)
Zhijun Xu
(NIST Center for Neutron Research)
Ronald Marks
(Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory)
Apurva Mehta
(Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory)
Valery Borzenets
(Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory)
Ming Yi
(Physics, University of California, Berkeley)
Benjamin Frandsen
(Physics, University of California, Berkeley)
Yi Lu
(Max Planck Institute for Solid State Research)
Derek Meyers
(Brookhaven National Laboratory)
Gideok Kim
(Max Planck Institute for Solid State Research)
Georg Christiani
(Max Planck Institute for Solid State Research)
Gennady Logvenov
(Max Planck Institute for Solid State Research)
Eva Benckiser
(Max Planck Institute for Solid State Research)
Bernhard Keimer
(Max Planck Institute for Solid State Research)
Robert Birgeneau
(Physics, University of California, Berkeley)
In this talk, I will outline a new, controlled approach to alter the oxygen concentration in thin films of La2CuO4+y using ex-situ electrochemistry. By allowing the oxygen ions to also penetrate into the substrate, we produce a lattice distortion in it. This modified structure is later stabilized in the film as well, due to the epitaxial relationship with the substrate. This results in high superconducting transition temperatures and novel structural dopant order with long-range coherence - reminiscent of 245 iron-selenide superconductors. Thus, I will demonstrate a general method to introduce interlayer oxygen with low disorder and applicability throughout a wide range of oxide heterostructures.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.MAR.V09.11
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