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Article: Modulation of metal-insulator transitions in La0.8Ca0.2MnO3/0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 heterostructures by electric fields
Title | Modulation of metal-insulator transitions in La0.8Ca0.2MnO3/0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 heterostructures by electric fields | ||||||||
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Authors | |||||||||
Issue Date | 2011 | ||||||||
Publisher | Institute of Physics Publishing Ltd.. The Journal's web site is located at http://iopscience.iop.org/0295-5075 | ||||||||
Citation | Europhysics Letters, 2011, v. 95 n. 5, article no. 57001 How to Cite? | ||||||||
Abstract | We have deposited La0.8Ca0.2MnO3 (LCMO) thin films onto a 0.7Pb(Mg1/3Nb2/3)O3-0. 3PbTiO3 (PMN-PT) single-crystal substrate to construct field effect devices and investigated the electric-field-induced strain and polarization effects on the structure, magnetic, and transport properties of LCMO films. LCMO not only exhibits the usual insulator-metal transition associated with the onset of ferromagnetic state, but also a lower-temperature metal-insulator transition due to charge/orbital order. Especially, the latter transition can be modulated reversely and continuously by electric fields, leading to a large electroresistance in LCMO films (ΔR/R(0) of ∼70% at 50 K). Such phenomenon could be explained based on the coactions of the piezoelectric effect and the ferroelectric-field polarization effect, which could ultimately tailor the strain and density of charge carriers in LCMO films. © 2011 Europhysics Letters Association. | ||||||||
Persistent Identifier | http://hdl.handle.net/10722/143382 | ||||||||
ISSN | 2023 Impact Factor: 1.8 2023 SCImago Journal Rankings: 0.498 | ||||||||
ISI Accession Number ID |
Funding Information: This work was supported by the Research Grant Council of Hong Kong (Project No. HKU702409P). SYW would like to thank the financial support from the Natural Science Foundation of Tianjin (11JCZDJC21800) and the Research Foundation of Tianjin Education Council (20090308). |
DC Field | Value | Language |
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dc.contributor.author | Wang, SY | en_US |
dc.contributor.author | Gao, J | en_US |
dc.date.accessioned | 2011-11-24T10:04:43Z | - |
dc.date.available | 2011-11-24T10:04:43Z | - |
dc.date.issued | 2011 | en_US |
dc.identifier.citation | Europhysics Letters, 2011, v. 95 n. 5, article no. 57001 | en_US |
dc.identifier.issn | 0295-5075 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/143382 | - |
dc.description.abstract | We have deposited La0.8Ca0.2MnO3 (LCMO) thin films onto a 0.7Pb(Mg1/3Nb2/3)O3-0. 3PbTiO3 (PMN-PT) single-crystal substrate to construct field effect devices and investigated the electric-field-induced strain and polarization effects on the structure, magnetic, and transport properties of LCMO films. LCMO not only exhibits the usual insulator-metal transition associated with the onset of ferromagnetic state, but also a lower-temperature metal-insulator transition due to charge/orbital order. Especially, the latter transition can be modulated reversely and continuously by electric fields, leading to a large electroresistance in LCMO films (ΔR/R(0) of ∼70% at 50 K). Such phenomenon could be explained based on the coactions of the piezoelectric effect and the ferroelectric-field polarization effect, which could ultimately tailor the strain and density of charge carriers in LCMO films. © 2011 Europhysics Letters Association. | - |
dc.language | eng | en_US |
dc.publisher | Institute of Physics Publishing Ltd.. The Journal's web site is located at http://iopscience.iop.org/0295-5075 | en_US |
dc.relation.ispartof | Europhysics Letters | en_US |
dc.rights | Europhysics Letters. Copyright © Institute of Physics Publishing Ltd.. | en_US |
dc.title | Modulation of metal-insulator transitions in La0.8Ca0.2MnO3/0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 heterostructures by electric fields | en_US |
dc.type | Article | en_US |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0295-5075&volume=95&issue=5&spage=57001:1&epage=57001:5&date=2011&atitle=Modulation+of+metal-insulator+transitions+in+La0.8Ca0.2MnO3/0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3+heterostructures+by+electric+fields | en_US |
dc.identifier.email | Wang, SY: sywang26@hku.hk | en_US |
dc.identifier.email | Gao, J: jugao@hku.hk | en_US |
dc.identifier.authority | Gao, J=rp00699 | en_US |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1209/0295-5075/95/57001 | - |
dc.identifier.scopus | eid_2-s2.0-80052324557 | - |
dc.identifier.hkuros | 197741 | en_US |
dc.identifier.volume | 95 | en_US |
dc.identifier.issue | 5, article no. 57001 | en_US |
dc.identifier.isi | WOS:000294325500025 | - |
dc.identifier.issnl | 0295-5075 | - |