Volume 136, Issue 38 e202409948
Zuschrift

Fully Optical Control of Polarization Current Direction in a Cyanide-Bridged Trinuclear Complex

Yu-Bo Huang

Yu-Bo Huang

Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395 Japan

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Sheng-Qun Su

Corresponding Author

Sheng-Qun Su

Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395 Japan

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Wen-Huang Xu

Wen-Huang Xu

Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395 Japan

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Wen-Wei Zheng

Wen-Wei Zheng

Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395 Japan

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Kai-Ge Gao

Kai-Ge Gao

College of Physical Science and Technology, Yangzhou University, Jiangsu, 225009 P. R. China

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Tian-Chi Ji

Tian-Chi Ji

Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395 Japan

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Xiao-Peng Zhang

Xiao-Peng Zhang

Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395 Japan

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Qi-Rui Shui

Qi-Rui Shui

Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395 Japan

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Zi-Qi Zhou

Zi-Qi Zhou

Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395 Japan

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Taisuke Ikeda

Taisuke Ikeda

Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395 Japan

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Shu-Qi Wu

Corresponding Author

Shu-Qi Wu

Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395 Japan

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Prof. Osamu Sato

Corresponding Author

Prof. Osamu Sato

Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395 Japan

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First published: 01 July 2024

Abstract

As a remote and non-contact stimulus, light offers the potential for manipulating the polarization of ferroelectric materials without physical contact. However, in current research, the non-contact write-read (erase) process lacks direct observation through the stable current as output signal. To address this limitation, we investigated the photoinduced polarization switching capabilities of the cyanide-bridged compound [Fe2Co] using visible light, leading to the achievement of rewritable polarization. By subjecting [Fe2Co] crystals to alternating irradiation with 785 nm and 532 nm light, the polarization changes exhibited a distinct square wave pattern, confirming the reliability of the writing and erasing processes. Initialization involved exposing specific crystal units to 532 nm light for storing “1” or “0” information, while reading was accomplished by scanning the units with 785 nm light, resulting in brief current pulses for “1” states and no current signal for “0” states. This research unveils new possibilities for optical storage systems, paving the way for efficient and rewritable data storage and retrieval technologies, such as the next-generation memories.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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