High-resolution electric field imaging based on intermittent-contact mode scanning NV center electrometry

Fuente: arXiv
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Autores principales: Cheng, Zhi, Yu, Zhiwei, Wang, Mengqi, Yang, Lingfeng, Cui, Zihao, Wang, Ya, Wang, Pengfei
Formato: Preprint
Publicado: 2025
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author Cheng, Zhi
Yu, Zhiwei
Wang, Mengqi
Yang, Lingfeng
Cui, Zihao
Wang, Ya
Wang, Pengfei
author_facet Cheng, Zhi
Yu, Zhiwei
Wang, Mengqi
Yang, Lingfeng
Cui, Zihao
Wang, Ya
Wang, Pengfei
contents Scanning nitrogen-vacancy (NV) center electrometry has shown potential for quantitative quantum imaging of electric fields at the nanoscale. However, achieving nanoscale spatial resolution remains a challenge since employing gradiometry to overcome electrostatic screening causes resolution-limiting trade-offs including the averaging effect and the sensor-sample proximity. Here, we demonstrate a scanning NV center protocol that achieves an enhanced spatial resolution of approximately 10 nm. We develop an axially symmetric probe with a sub-nanometer oscillating amplitude, which simultaneously provides robust intermittent-contact mode feedback and ensures close engagement between the diamond tip and the sample. As an example, we experimentally demonstrate a 10 nm spatial resolution on ferroelectric lithium niobate. Scanning NV center electrometry with this resolution can directly resolve the nanoscale polar textures and dynamics of emerging ferroelectrics, which commonly arise on the scale of tens of nanometers.
format Preprint
id arxiv_https___arxiv_org_abs_2509_11586
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle High-resolution electric field imaging based on intermittent-contact mode scanning NV center electrometry
Cheng, Zhi
Yu, Zhiwei
Wang, Mengqi
Yang, Lingfeng
Cui, Zihao
Wang, Ya
Wang, Pengfei
Quantum Physics
Materials Science
Scanning nitrogen-vacancy (NV) center electrometry has shown potential for quantitative quantum imaging of electric fields at the nanoscale. However, achieving nanoscale spatial resolution remains a challenge since employing gradiometry to overcome electrostatic screening causes resolution-limiting trade-offs including the averaging effect and the sensor-sample proximity. Here, we demonstrate a scanning NV center protocol that achieves an enhanced spatial resolution of approximately 10 nm. We develop an axially symmetric probe with a sub-nanometer oscillating amplitude, which simultaneously provides robust intermittent-contact mode feedback and ensures close engagement between the diamond tip and the sample. As an example, we experimentally demonstrate a 10 nm spatial resolution on ferroelectric lithium niobate. Scanning NV center electrometry with this resolution can directly resolve the nanoscale polar textures and dynamics of emerging ferroelectrics, which commonly arise on the scale of tens of nanometers.
title High-resolution electric field imaging based on intermittent-contact mode scanning NV center electrometry
topic Quantum Physics
Materials Science
url https://arxiv.org/abs/2509.11586