Modulation of persistent magnetoresistance by piezo-strain effect in manganite-based heterostructures

W. Li; H. Yan; X. J. Chai; S. H. Wang; X. L. Dong; L. X. Ren; C. L. Chen; K. X. Jin

doi:10.1063/1.4983464

Modulation of persistent magnetoresistance by piezo-strain effect in manganite-based heterostructures

W. Li, H. Yan, X. J. Chai, S. H. Wang, X. L. Dong, L. X. Ren, C. L. Chen, K. X. Jin

School of Physical Science and Technology

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

Persistent magnetoresistance effects in the phase-separated Pr_0.65(Ca_0.25Sr_0.75)_0.35MnO₃/SrTiO₃ and Pr_0.65(Ca_0.25Sr_0.75)_0.35MnO₃/0.7PbMg_1/3Nb_2/3O₃-0.3PbTiO₃ heterostructures under a low magnetic field are investigated. It is observed that the persistent magnetoresistance effects decrease with increasing temperatures and the values for the heterostructures on 0.7Pb(Mg_1/3Nb_2/3)O₃-0.3PbTiO₃ and SrTiO₃ substrates are about 86.6% and 33.2% at 40 K, respectively. More interestingly, the applied electric field on the 0.7PbMg_1/3Nb_2/3O₃-0.3PbTiO₃ substrate can suppress the persistent magnetoresistance effect, indicating that different energy landscapes can be dramatically modulated by the piezo-strain. These results are discussed in terms of the strain-induced competition in the ferromagnetic state and the charge-ordering phase by the energy scenario, which provide a promising approach for designing devices of electric-magnetic memories in all-oxide heterostructures.

Original language	English
Article number	192411
Journal	Applied Physics Letters
Volume	110
Issue number	19
DOIs	https://doi.org/10.1063/1.4983464
State	Published - 8 May 2017

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@article{6ce67b7b6b564714885b00030e2f9b4f,

title = "Modulation of persistent magnetoresistance by piezo-strain effect in manganite-based heterostructures",

abstract = "Persistent magnetoresistance effects in the phase-separated Pr0.65(Ca0.25Sr0.75)0.35MnO3/SrTiO3 and Pr0.65(Ca0.25Sr0.75)0.35MnO3/0.7PbMg1/3Nb2/3O3-0.3PbTiO3 heterostructures under a low magnetic field are investigated. It is observed that the persistent magnetoresistance effects decrease with increasing temperatures and the values for the heterostructures on 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 and SrTiO3 substrates are about 86.6% and 33.2% at 40 K, respectively. More interestingly, the applied electric field on the 0.7PbMg1/3Nb2/3O3-0.3PbTiO3 substrate can suppress the persistent magnetoresistance effect, indicating that different energy landscapes can be dramatically modulated by the piezo-strain. These results are discussed in terms of the strain-induced competition in the ferromagnetic state and the charge-ordering phase by the energy scenario, which provide a promising approach for designing devices of electric-magnetic memories in all-oxide heterostructures.",

author = "W. Li and H. Yan and Chai, {X. J.} and Wang, {S. H.} and Dong, {X. L.} and Ren, {L. X.} and Chen, {C. L.} and Jin, {K. X.}",

note = "Publisher Copyright: {\textcopyright} 2017 Author(s).",

year = "2017",

month = may,

day = "8",

doi = "10.1063/1.4983464",

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volume = "110",

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T1 - Modulation of persistent magnetoresistance by piezo-strain effect in manganite-based heterostructures

AU - Li, W.

AU - Yan, H.

AU - Chai, X. J.

AU - Wang, S. H.

AU - Dong, X. L.

AU - Ren, L. X.

AU - Chen, C. L.

AU - Jin, K. X.

PY - 2017/5/8

Y1 - 2017/5/8

N2 - Persistent magnetoresistance effects in the phase-separated Pr0.65(Ca0.25Sr0.75)0.35MnO3/SrTiO3 and Pr0.65(Ca0.25Sr0.75)0.35MnO3/0.7PbMg1/3Nb2/3O3-0.3PbTiO3 heterostructures under a low magnetic field are investigated. It is observed that the persistent magnetoresistance effects decrease with increasing temperatures and the values for the heterostructures on 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 and SrTiO3 substrates are about 86.6% and 33.2% at 40 K, respectively. More interestingly, the applied electric field on the 0.7PbMg1/3Nb2/3O3-0.3PbTiO3 substrate can suppress the persistent magnetoresistance effect, indicating that different energy landscapes can be dramatically modulated by the piezo-strain. These results are discussed in terms of the strain-induced competition in the ferromagnetic state and the charge-ordering phase by the energy scenario, which provide a promising approach for designing devices of electric-magnetic memories in all-oxide heterostructures.

AB - Persistent magnetoresistance effects in the phase-separated Pr0.65(Ca0.25Sr0.75)0.35MnO3/SrTiO3 and Pr0.65(Ca0.25Sr0.75)0.35MnO3/0.7PbMg1/3Nb2/3O3-0.3PbTiO3 heterostructures under a low magnetic field are investigated. It is observed that the persistent magnetoresistance effects decrease with increasing temperatures and the values for the heterostructures on 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 and SrTiO3 substrates are about 86.6% and 33.2% at 40 K, respectively. More interestingly, the applied electric field on the 0.7PbMg1/3Nb2/3O3-0.3PbTiO3 substrate can suppress the persistent magnetoresistance effect, indicating that different energy landscapes can be dramatically modulated by the piezo-strain. These results are discussed in terms of the strain-induced competition in the ferromagnetic state and the charge-ordering phase by the energy scenario, which provide a promising approach for designing devices of electric-magnetic memories in all-oxide heterostructures.

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M3 - 文章

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VL - 110

JO - Applied Physics Letters

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Modulation of persistent magnetoresistance by piezo-strain effect in manganite-based heterostructures

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