@article{ ISI:000335145600023,
Author = {Huang, Mengchen and Bi, Feng and Bark, Chung-Wung and Ryu, Sangwoo and
   Cho, Kwang-Hwan and Eom, Chang-Beom and Levy, Jeremy},
Title = {{Non-local piezoresponse of LaAlO3/SrTiO3 heterostructures}},
Journal = {{APPLIED PHYSICS LETTERS}},
Year = {{2014}},
Volume = {{104}},
Number = {{16}},
Month = {{APR 21}},
Abstract = {{The hysteretic piezoelectric response in LaAlO3/SrTiO3 heterostructures
   can provide important insights into the mechanism for interfacial
   conductance and its metastability under various conditions. We perform
   piezoresponse force microscopy experiments on 3 unit cell LaAlO3/SrTiO3
   heterostructures. A hysteretic piezoresponse is observed under a variety
   of non-local environmental and driving conditions. The hysteresis is
   suppressed when either the sample is placed in vacuum or the interface
   is electrically grounded. We also find the hysteresis can be affected by
   the presence of ions. A simple physical model related to surface
   adsorbates is presented to account for the observed phenomena. (C) 2014
   AIP Publishing LLC.}},
DOI = {{10.1063/1.4873125}},
Article-Number = {{161606}},
ISSN = {{0003-6951}},
EISSN = {{1077-3118}},
ResearcherID-Numbers = {{Bark, Chung Wung/B-9534-2014
   Levy, Jeremy/A-2081-2009
   Bi, Feng/J-7459-2015
   Eom, Chang-Beom/I-5567-2014}},
ORCID-Numbers = {{Bark, Chung Wung/0000-0002-9394-4240
   Levy, Jeremy/0000-0002-5700-2977
   Bi, Feng/0000-0002-1604-7108
   }},
Unique-ID = {{ISI:000335145600023}},
}

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