Anomalous Pressure-Enhanced Polarization in Sliding Ferroelectrics
Abstract
Hydrostatic pressure commonly suppresses polarization in conventional displacive ferroelectrics by weakening the off-center ionic distortion. Sliding ferroelectrics may provide a contrasting case because their polarization arises from stacking-dependent interlayer charge transfer rather than intra-unit-cell ionic displacement. Here, hydrostatic pressure is shown to enhance, rather than suppress, the polarization of parallel-stacked bilayer boron nitride, a prototypical sliding ferroelectric. A graphene layer placed on top of a ferroelectric boron nitride bilayer is used for sensing the evolution of polarization under pressure. The pressure enhances both the interlayer potential and the ferroelectric polarization, with the latter increasing approximately linearly by 80% up to 1.66GPa. These results establish hydrostatic compression as a tuning parameter for sliding-ferroelectric polarization, with potential implications for ultrathin slidetronic memory devices.
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BibTeX
@misc{min2026anomalous,
title = {{Anomalous Pressure-Enhanced Polarization in Sliding Ferroelectrics}},
author = {Lujin Min and Sahas Kamat and Ameer Mustafa and Nguyen The Duy and Kyle Nadel and Junhao Lin and Kenji Watanabe and Takashi Taniguchi and Daniel Bennett and Brad J. Ramshaw and Kenji Yasuda},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.30491},
eprint = {2609.30491},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.30491},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Anomalous Pressure-Enhanced Polarization in Sliding Ferroelectrics
AU - Lujin Min
AU - Sahas Kamat
AU - Ameer Mustafa
AU - Nguyen The Duy
AU - Kyle Nadel
AU - Junhao Lin
AU - Kenji Watanabe
AU - Takashi Taniguchi
AU - Daniel Bennett
AU - Brad J. Ramshaw
AU - Kenji Yasuda
PY - 2026
DA - 2026/09/24
PB - arXiv
DO - 10.48550/arxiv.2609.30491
UR - https://arxiv.org/abs/2609.30491
AB - Hydrostatic pressure commonly suppresses polarization in conventional displacive ferroelectrics by weakening the off-center ionic distortion. Sliding ferroelectrics may provide a contrasting case because their polarization arises from stacking-dependent interlayer charge transfer rather than intra-unit-cell ionic displacement. Here, hydrostatic pressure is shown to enhance, rather than suppress, the polarization of parallel-stacked bilayer boron nitride, a prototypical sliding ferroelectric. A graphene layer placed on top of a ferroelectric boron nitride bilayer is used for sensing the evolution of polarization under pressure. The pressure enhances both the interlayer potential and the ferroelectric polarization, with the latter increasing approximately linearly by 80% up to 1.66GPa. These results establish hydrostatic compression as a tuning parameter for sliding-ferroelectric polarization, with potential implications for ultrathin slidetronic memory devices.
ER -