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Two-dimensional ferroelectric materials are beneficial for power-efficient memory devices and transistor applications. Here, we predict out-of-plane ferroelectricity in a new family of buckled metal oxide (MO; M: Ge, Sn, Pb) monolayers with…

Applied Physics · Physics 2024-10-28 Ateeb Naseer , Musaib Rafiq , Somnath Bhowmick , Amit Agarwal , Yogesh Singh Chauhan

In this work, we propose SEE-MCAM, scalable and compact multi-bit CAM (MCAM) designs that utilize the three-terminal ferroelectric FET (FeFET) as the proxy. By exploiting the multi-level-cell characteristics of FeFETs, our proposed SEE-MCAM…

Hardware Architecture · Computer Science 2023-10-10 Shengxi Shou , Che-Kai Liu , Sanggeon Yun , Zishen Wan , Kai Ni , Mohsen Imani , X. Sharon Hu , Jianyi Yang , Cheng Zhuo , Xunzhao Yin

Exploration of new dielectrics with large capacitive coupling is an essential topic in modern electronics when conventional dielectrics suffer from the leakage issue near breakdown limit. To address this looming challenge, we demonstrate…

We have implemented fast Fourier transforms for one, two, and three-dimensional arrays on the Cerebras CS-2, a system whose memory and processing elements reside on a single silicon wafer. The wafer-scale engine (WSE) encompasses a…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-06-26 Marcelo Orenes-Vera , Ilya Sharapov , Robert Schreiber , Mathias Jacquelin , Philippe Vandermersch , Sharan Chetlur

We report the realization of field-effect transistors (FETs) made with chemically synthesized multilayer 2D crystal semiconductor MoS2. Electrical properties such as the FET mobility, subthreshold swing, on/off ratio, and contact resistance…

Mesoscale and Nanoscale Physics · Physics 2015-01-30 Wan Sik Hwang , Maja Remskar , Rusen Yan , Tom Kosel , Jong Kyung Park , Byung Jin Cho , Wilfried Haensch , Huili , Xing , Alan Seabaugh , Debdeep Jena

We report the performance of field-effect transistors (FETs), comprised of mono-layer of recently synthesized layered two-dimensional MoSi2N_4 as channel material, using the first principles quantum transport simulations. The devices'…

Mesoscale and Nanoscale Physics · Physics 2022-05-11 Keshari Nandan , Barun Ghosh , Amit Agarwal , Somnath Bhowmick , Yogesh S. Chauhan

Two-dimensional layered semiconductors have recently emerged as attractive building blocks for next-generation low-power non-volatile memories. However, challenges remain in the controllable sub-micron fabrication of bipolar resistively…

Non-volatile memory (NVM) devices that reliably operate at temperatures above 300 $^\circ$C are currently non-existent and remains a critically unmet challenge in the development of high-temperature (T) resilient electronics, necessary for…

Two-dimensional (2D) materials like transition metal dichalcogenides (TMD) have proved to be serious candidates to replace silicon in several technologies with enhanced performances. In this respect, the two remaining challenges are the…

Non-volatile memories (NVMs) offer negligible leakage power consumption, high integration density, and data retention, but their non-volatility also raises the risk of data exposure. Conventional encryption techniques such as the Advanced…

Cryptography and Security · Computer Science 2025-12-04 Sanwar Ahmed Ovy , Jiahui Duan , Md Ashraful Islam Romel , Franz Muller , Thomas Kampfe , Kai Ni , Sumitha George

Neuromorphic computing, inspired by biological intelligence, offers a pathway to revolutionize artificial intelligence (AI) by unifying memory and processing in an energy-efficient, sustainable framework for data-intensive tasks.…

Materials Science · Physics 2025-09-10 Xinye Li , Sayani Majumdar

We present a scaling theory of two-dimensional (2D) field effect transistors (FETs). For devices with channel thickness less than 4 nm, the device electrostatics is dominated by the physical gate oxide thickness and not the effective oxide…

Mesoscale and Nanoscale Physics · Physics 2021-05-25 Saurabh V. Suryavanshi , Chris D. English , H. -S. P. Wong , Eric Pop

Breaking the memory wall in advanced computing architectures will require complex 3D integration of emerging memory materials such as ferroelectrics-either within the back-end-of-line (BEOL) of CMOS front-end processes or through advanced…

Field-effect transistors (FETs) with non-covalently functionalised molybdenum disulfide (MoS2) channels grown by chemical vapour deposition (CVD) on SiO2 are reported. The dangling-bond-free surface of MoS2 was functionalised with a…

3D NAND enables continuous NAND density and cost scaling beyond conventional 2D NAND. However, its poly-Si channel suffers from low mobility, large device variations, and instability caused by grain boundaries. Here, we overcome these…

Mesoscale and Nanoscale Physics · Physics 2022-12-19 Chen Sun , Chao Li , Subhranu Samanta , Kaizhen Han , Zijie Zheng , Jishen Zhang , Qiwen Kong , Haiwen Xu , Zuopu Zhou , Yue Chen , Cheng Zhuo , Kai Ni , Xunzhao Yin , Xiao Gong

Dielectric inserts are widely used to expand the memory window (MW) in ferroelectric FETs (FeFETs) for vertical NAND applications, with prior efforts focused primarily on material selection and stack positioning. Here, we demonstrate that…

Phase engineering by strains in 2D semiconductors is of great importance for a variety of applications. Here, we present a study of strain induced ferroelectric (FE) transition on bismuth oxyselenide (Bi$_2$O$_2$Se) films, a…

Materials Science · Physics 2023-03-07 Mengqi Wu , Zhefeng Lou , Chen-Min Dai , Tao Wang , Jiaqi Wang , Ziye Zhu , Zhuokai Xu , Tulai Sun , Wenbin Li , Xiaorui Zheng , Xiao Lin

We present a physics-based compact model for two-dimensional (2D) field-effect transistors (FETs) based on monolayer semiconductors such as MoS2. A semi-classical transport approach is appropriate for the 2D channel, enabling simplified…

Mesoscale and Nanoscale Physics · Physics 2019-08-14 Saurabh V. Suryavanshi , Eric Pop

Ferroelectric field-effect-transistor (FEFET) has emerged as a scalable solution for 3D NAND and embedded flash (eFlash), with recent progress in achieving large memory window (MW) using metal-insulator-ferroelectric-insulator-semiconductor…

Materials Science · Physics 2024-07-01 Song-Hyeon Kuk , Kyul Ko , Bong Ho Kim , Jae-Hoon Han , Sang-Hyeon Kim

The memory wall bottleneck is a key challenge across many data-intensive applications. Multi-level FeFET-based embedded non-volatile memories are a promising solution for denser and more energy-efficient on-chip memory. However, reliable…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-06-23 Mohammad Mehdi Sharifi , Lillian Pentecost , Ramin Rajaei , Arman Kazemi , Qiuwen Lou , Gu-Yeon Wei , David Brooks , Kai Ni , X. Sharon Hu , Michael Niemier , Marco Donato