Polarization Pruning: Reliability Enhancement of Hafnia‐Based Ferroelectric Devices for Memory and Neuromorphic Computing

RH Koo, W Shin, J Kim, J Yim, J Ko, G Jung… - Advanced …, 2024 - Wiley Online Library
Ferroelectric (FE) materials are key to advancing electronic devices owing to their non‐
volatile properties, rapid state‐switching abilities, and low‐energy consumption. FE‐based …

Ferroelectric tunnel junctions: promise, achievements and challenges

SH Park, HJ Lee, MH Park, J Kim… - Journal of Physics D …, 2024 - iopscience.iop.org
Ferroelectric tunnel junctions (FTJs) have been the subject of ongoing research interest due
to its fast operation based on the spontaneous polarization direction of ultrathin ferroelectrics …

Stochasticity in ferroelectric memory devices with different bottom electrode crystallinity

RH Koo, W Shin, G Jung, D Kwon, JJ Kim… - Chaos, Solitons & …, 2024 - Elsevier
This study comprehensively analyzes of the influence of bottom electrode crystallinity on the
stochastic noise in ferroelectric tunnel junctions (FTJs). We perform a comparative analysis …

Review of Ferroelectric Materials and Devices toward Ultralow Voltage Operation

A Wang, R Chen, Y Yun, J Xu… - Advanced Functional …, 2024 - Wiley Online Library
Ferroelectrics are considered to be promising candidates for highly energy‐efficient
electronic devices in future information technologies owing to their nonvolatile and low …

Toward Ideal Low‐Frequency Noise in Monolayer CVD MoS2 FETs: Influence of van der Waals Junctions and Sulfur Vacancy Management

W Shin, J Byeon, RH Koo, J Lim, JH Kang… - Advanced …, 2024 - Wiley Online Library
The pursuit of sub‐1‐nm field‐effect transistor (FET) channels within 3D semiconducting
crystals faces challenges due to diminished gate electrostatics and increased charge carrier …

Stochastic behavior of random telegraph noise in ferroelectric devices: Impact of downscaling and mitigation strategies for neuromorphic applications

RH Koo, W Shin, ST Lee, D Kwon, JH Lee - Chaos, Solitons & Fractals, 2025 - Elsevier
This study investigates the stochastic behavior of random telegraph noise (RTN) in
ferroelectric tunnel junctions (FTJs) considering the downscaling effect and its implications …

Examination of Ferroelectric Domain Dynamics in HZO under Endurance Cycling Stress

RH Koo, W Shin, S Ryu, S Kim, G Jung… - IEEE Electron …, 2024 - ieeexplore.ieee.org
We investigate domain wall (DW) movement in hafnium zirconium oxide (HZO) under
various temperature () and cycling stresses. It is demonstrated that cycling stress distinctly …

Hybrid ferroelectric tunnel junctions: State-of-the-art, challenges and opportunities

KF Luo, Z Ma, D Sando, Q Zhang… - arXiv preprint arXiv …, 2024 - arxiv.org
Ferroelectric tunnel junctions (FTJs) harness the unique combination of ferroelectricity and
quantum tunneling, and thus herald new opportunities in next-generation nonvolatile …