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arXiv · 2505.24419

Observation of ferron transport in ferroelectrics

Kaiwen Shen·Ping Tang·Xianzhe Chen·Yifan Gao·Yuanfei Fan·Zejing Guo·Yingfen Wei·Hao Jiang·Xumeng Zhang·Ming Wang·Pan He·Wu Shi·Jiahao Han·Yizheng Wu·Jian Shen·Qi Liu·Gerrit E. W. Bauer·Ming Liu
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Abstract

Ferroelectrics feature spontaneous electric dipolar order reconfigurable via electric fields. Recent theoretical studies of the collective excitations of this electric dipolar order give rise to the hope that "ferron" quasiparticles may complement the magnons of magnetic materials in information and heat management technologies. Yet direct experimental evidence of ferron transport remains elusive. Here we demonstrate efficient ferron injection and detection enabled by ferromagnetic metal contacts, achieving nonlocal signal transmission over micrometer distances in a prototypical ferroelectric PMN-PT. The transmission efficiency can be switched by external magnetic fields that couple to the contacts and gate electric fields that control the ferron excitations. Ferron-based devices open new power saving strategies that employ ferroelectric materials in a future sustainable information society.

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Kaiwen Shen, Ping Tang, Xianzhe Chen, Yifan Gao, Yuanfei Fan, Zejing Guo, Yingfen Wei, Hao Jiang, Xumeng Zhang, Ming Wang, Pan He, Wu Shi, Jiahao Han, Yizheng Wu, Jian Shen, Qi Liu, Gerrit E. W. Bauer, Ming Liu. 2025-05-30. Observation of ferron transport in ferroelectrics. https://arxiv.org/abs/2505.24419

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