4.8 Article

Magnetic Field Controllable Photocurrent Properties in BiFe0.9Ni0.1O3/La0.7Sr0.3MnO3 Laminate Thin Film

Journal

ENERGY & ENVIRONMENTAL MATERIALS
Volume -, Issue -, Pages -

Publisher

WILEY
DOI: 10.1002/eem2.12601

Keywords

bismuth ferrite; low-field magnetoresistance effect; magnetic field modulation; perovskite manganite; photocurrent

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This paper presents a multifunctional magnetic-photoelectric laminate device that integrates spintronic material (La0.7Sr0.3MnO3) and multiferroic material (Ni-doped BiFeO3), achieving repeatable modulation of photoelectric properties through external magnetic fields. The photocurrent density (J) of the laminate is significantly enhanced, with a change rate of J up to 287.6%. This enhancement is attributed to the low-field magnetoresistance effect in the perovskite manganite and the scattering of spin photoelectrons in the multiferroic material. The laminate combines the functions of a sensor and a controller, capable of reflecting the intensity of the environmental magnetic field and modulating the photoelectric conversion performance. This work provides an alternative and facile approach to achieve multi-degree-of-freedom control for photoelectric conversion performances and miniaturize multifunction devices.
This paper reports a multifunctional magnetic-photoelectric laminate device based on the integration of spintronic material (La0.7Sr0.3MnO3) and multiferroic (Ni-doped BiFeO3), in which the repeatable modulation effect on the photoelectric properties were achieved by applying external magnetic fields. More obviously, photocurrent density (J) of the laminate was largely enhanced, the change rate of J up to 287.6% is obtained. This sensing function effect should be attributed to the low-field magnetoresistance effect in perovskite manganite and the scattering of spin photoelectron in multiferroic material. The laminate perfectly combines the functions of sensor and controller, which can not only reflect the intensity of environmental magnetic field, but also modulate the photoelectric conversion performance. This work provides an alternative and facile way to realize multi-degree-of-freedom control for photoelectric conversion performances and lastly miniaturize multifunction device.

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