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Title: Ferroelastically and magnetically co-coupled resistive switching in Nd0.5Sr0.5MnO3/PMN-PT(011) multiferroic heterostructures
Authors: Zheng, M 
Xu, XK
Ni, H
Qi, YP
Li, XM
Gao, J
Issue Date: 2018
Publisher: American Institute of Physics
Source: Applied physics letters, 19 Mar. 2018, v. 112, no. 12, 123502 How to cite?
Journal: Applied physics letters 
Abstract: The phase separation, i.e., the competition between coexisting multi-phases, can be adjusted by external stimuli, such as magnetic field, electric field, current, light, and strain. Here, a multiferroic heterostructure composed of a charge-ordered Nd0.5Sr0.5MnO3 thin film and a ferroelectric Pb(Mg1/3Nb2/3)O-3-PbTiO3 single crystal is fabricated to investigate the lattice strain and magnetic field co-control of phase separation in resistive switching. The stable and nonvolatile resistance tuning is realized at room temperature using the electric-field-induced reversible ferroelastic strain effect, which can be enhanced by 84% under the magnetic field. Moreover, the magnetoresistance can be effectively tuned by the electrically driven ferroelastic strain. These findings reveal that the ferroelastic strain and the magnetic field strongly correlate with each other and are mediated by phase separation. Our work provides an approach to design strain-engineered multifunctional memory devices based on complex oxides by introducing an extra magnetic field stimulus. Published by AIP Publishing.
ISSN: 0003-6951
EISSN: 1077-3118
DOI: 10.1063/1.5013924
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