Suppression of photovoltaic effect by magnetic field in Pr 0.65(Ca0.75Sr0.25)0.35MnO 3/Nb:SrTiO3 heterostructure

C. Luo; K. X. Jin; C. L. Chen; T. Wu

doi:10.1063/1.4832331

Suppression of photovoltaic effect by magnetic field in Pr _0.65(Ca_0.75Sr_0.25)_0.35MnO ₃/Nb:SrTiO₃ heterostructure

C. Luo, K. X. Jin^*, C. L. Chen, T. Wu

^*Corresponding author for this work

Physical Sciences and Engineering

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

12 Scopus citations

Abstract

The heterostructure composed of Pr_0.65(Ca_0.75Sr _0.25)_0.35MnO₃ and 0.7 wt. % Nb-doped SrTiO ₃ was fabricated. The heterostructure exhibits an asymmetric current-voltage relation similar to that of p-n junctions and an obvious photovoltaic effect with its maximum value of about 25.1 mV at T = 140 K. It is interesting that the magnetic field has a strong suppression effect on photovoltaic effect, and the maximum relative change of photovoltage under the magnetic field of 1 T is about 63% with the illumination of 15 mW/mm² light (532 nm) at T ∼ 140 K. The physical mechanism is explained by the electronic phase separation mechanism.

Original language	English (US)
Article number	212401
Journal	Applied Physics Letters
Volume	103
Issue number	21
DOIs	https://doi.org/10.1063/1.4832331
State	Published - Nov 18 2013

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4832331

Cite this

@article{81013b044d9d46b484bc07b58f6c374b,

title = "Suppression of photovoltaic effect by magnetic field in Pr 0.65(Ca0.75Sr0.25)0.35MnO 3/Nb:SrTiO3 heterostructure",

abstract = "The heterostructure composed of Pr0.65(Ca0.75Sr 0.25)0.35MnO3 and 0.7 wt. % Nb-doped SrTiO 3 was fabricated. The heterostructure exhibits an asymmetric current-voltage relation similar to that of p-n junctions and an obvious photovoltaic effect with its maximum value of about 25.1 mV at T = 140 K. It is interesting that the magnetic field has a strong suppression effect on photovoltaic effect, and the maximum relative change of photovoltage under the magnetic field of 1 T is about 63% with the illumination of 15 mW/mm2 light (532 nm) at T ∼ 140 K. The physical mechanism is explained by the electronic phase separation mechanism.",

author = "C. Luo and Jin, {K. X.} and Chen, {C. L.} and T. Wu",

note = "Funding Information: This work was supported by the National Natural Science Foundation of China (Nos. 61078057, 51202195, and 51172183), the natural science foundation of Shaanxi Province (No. 2012JQ8013), Aviation Foundation of China (No. 2011ZF53065), Graduate Student Seed Fund (No. Z2013142), and NPU Foundation for Fundamental Research (No. JC20120246).",

year = "2013",

month = nov,

day = "18",

doi = "10.1063/1.4832331",

language = "English (US)",

volume = "103",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "AMER INST PHYSICS",

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TY - JOUR

T1 - Suppression of photovoltaic effect by magnetic field in Pr 0.65(Ca0.75Sr0.25)0.35MnO 3/Nb:SrTiO3 heterostructure

AU - Luo, C.

AU - Jin, K. X.

AU - Chen, C. L.

AU - Wu, T.

N1 - Funding Information: This work was supported by the National Natural Science Foundation of China (Nos. 61078057, 51202195, and 51172183), the natural science foundation of Shaanxi Province (No. 2012JQ8013), Aviation Foundation of China (No. 2011ZF53065), Graduate Student Seed Fund (No. Z2013142), and NPU Foundation for Fundamental Research (No. JC20120246).

PY - 2013/11/18

Y1 - 2013/11/18

N2 - The heterostructure composed of Pr0.65(Ca0.75Sr 0.25)0.35MnO3 and 0.7 wt. % Nb-doped SrTiO 3 was fabricated. The heterostructure exhibits an asymmetric current-voltage relation similar to that of p-n junctions and an obvious photovoltaic effect with its maximum value of about 25.1 mV at T = 140 K. It is interesting that the magnetic field has a strong suppression effect on photovoltaic effect, and the maximum relative change of photovoltage under the magnetic field of 1 T is about 63% with the illumination of 15 mW/mm2 light (532 nm) at T ∼ 140 K. The physical mechanism is explained by the electronic phase separation mechanism.

AB - The heterostructure composed of Pr0.65(Ca0.75Sr 0.25)0.35MnO3 and 0.7 wt. % Nb-doped SrTiO 3 was fabricated. The heterostructure exhibits an asymmetric current-voltage relation similar to that of p-n junctions and an obvious photovoltaic effect with its maximum value of about 25.1 mV at T = 140 K. It is interesting that the magnetic field has a strong suppression effect on photovoltaic effect, and the maximum relative change of photovoltage under the magnetic field of 1 T is about 63% with the illumination of 15 mW/mm2 light (532 nm) at T ∼ 140 K. The physical mechanism is explained by the electronic phase separation mechanism.

UR - http://www.scopus.com/inward/record.url?scp=84888420116&partnerID=8YFLogxK

U2 - 10.1063/1.4832331

DO - 10.1063/1.4832331

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VL - 103

JO - Applied Physics Letters

JF - Applied Physics Letters

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