Article
Engineering, Electrical & Electronic
Xiao-Yuan Wang, Zhi-Ru Wu, Peng-Fei Zhou, Herbert Ho-Ching Iu, Sung-Mo Kang, Jason K. Eshraghian
Summary: The search for a compatible application of memristor-CMOS logic gates has been difficult due to slow switching speeds and resistive dissipation. However, in the context of active matrix displays with comparatively slower refresh rates, memristor-CMOS logic shows potential for peripheral I/O logic. In this study, ternary decoders were designed and implemented for a seven segment LED display, demonstrating improved data density.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
(2022)
Article
Computer Science, Information Systems
Giorgos Dimitrakopoulos, Kleanthis Papachatzopoulos, Vassilis Paliouras
Summary: Traditional binary adders rely on the carry-propagation algorithm, while this work introduces a new addition method called sum-propagate addition, which opens up a new design space. Although sum-propagate and carry-propagate adders have asymptotically the same complexity, in practice traditional carry-propagate adders perform better under current implementation technologies.
IEEE TRANSACTIONS ON EMERGING TOPICS IN COMPUTING
(2021)
Article
Engineering, Electrical & Electronic
Jing Chen, Ping Li, Junqiang Zhu, Xiao-Ming Wu, Ran Liu, Jing Wan, Tian-Ling Ren
Summary: Transition metal dichalcogenides (TMDs) have outstanding physical and electrical properties, making them a promising platform for future electronic devices. MoTe2, with a bandgap close to silicon, shows potential for next-generation integrated circuits. By utilizing the ambipolar conduction property in MoTe2, high-quality polarity-controllable MoTe2 transistors (PCMTs) were successfully fabricated in our work, demonstrating their promise as building blocks for MoTe2 logic ICs.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2021)
Article
Chemistry, Multidisciplinary
Pei Tang, Wuyang Tan, Fangzhou Li, Shan Xue, Yihui Ma, Pengwei Jing, Yanghui Liu, Jian Zhu, Xingbin Yan
Summary: Supercapacitor diode (CAPode) is a novel device that integrates ion diode functionality into a conventional electrical double-layer capacitor. It has potential applications in emerging fields and can achieve high charge storage and rectification properties through spinel ZnCo2O4's ion-selective surface redox reaction. Furthermore, it can be used in logic gate applications to realize logic operations. This research expands the types of CAPodes and provides a train of thought for constructing high-performance capacitive ionic diodes.
ADVANCED MATERIALS
(2023)
Article
Computer Science, Information Systems
Ramzi A. Jaber, Jihad Mohamed Aljaam, Bilal N. Owaydat, Somaya Ali Al-Maadeed, Abdallah Kassem, Ali Massoud Haidar
Summary: Embedded systems, IoT devices, and portable electronic devices have spread rapidly recently, most of which rely on batteries to operate. This work aims to decrease energy consumption by utilizing multiple-valued logic (MVL) and carbon nanotube field-effect transistors (CNFET) in ternary combinational circuits. Extensive HSPICE simulations show significant improvements in transistor count and energy consumption reductions, as well as increased robustness to process variations and noise tolerance compared to recent similar designs.
Article
Chemistry, Multidisciplinary
Rahul Pendurthi, Darsith Jayachandran, Azimkhan Kozhakhmetov, Nicholas Trainor, Joshua A. Robinson, Joan M. Redwing, Saptarshi Das
Summary: This article introduces for the first time the heterogeneous integration of large area grown n-type MoS2 and p-type vanadium-doped WSe2 FETs with non-volatile and analog memory storage capabilities to achieve a non-von Neumann 2D CMOS platform. The manufacturing process allows for precise positioning of n-type and p-type FETs, and various circuits and computing functions based on this platform are successfully demonstrated.
Article
Computer Science, Information Systems
Gianluca Giustolisi, Gaetano Palumbo
Summary: This paper analyzes, designs, and compares six significant topologies of one-bit full adders based on their Energy-Efficient Curves in the Energy-Delay Space. The comparison is made using a 28nm CMOS technology and provides a comprehensive overview for selecting the best topology.
Article
Engineering, Electrical & Electronic
Megha Nawaria, Sanjay Kumar, Mohit Kumar Gautam, Narendra Singh Dhakad, Rohit Singh, Sonal Singhal, Pawan Kumar, Santosh Kumar Vishvakarma, Shaibal Mukherjee
Summary: Compact low-power devices with ultrafast processing speed are essential for modern logic system development, and memristors play a significant role in digital circuit design. This study presents the design, implementation, and performance evaluation of memristor-based logic gates and combinational logic circuits. An optimized design of these circuits is proposed and compared with the conventional 180-nm CMOS technology. The utilized memristor model is validated with experimental results, and it shows significant improvements in performance, reducing area, power, and delay compared to the traditional CMOS technology.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Review
Computer Science, Information Systems
Yufei Huang, Shuhui Li, Yaguang Yang, Chengying Chen
Summary: There is an increasing need for low-power, area-efficient VLSI design, but conventional design methods based on MOSFET and CMOS technology cannot meet the requirements. Memristor-based logic circuits offer a promising solution for conventional logic circuit structure and architecture innovation due to their unique characteristics.
Article
Engineering, Electrical & Electronic
Joon-Kyu Han, Ji-Man Yu, Seo-Yeon Nam, Yang-Kyu Choi
Summary: A CMOS ternary logic is achieved using a biristor threshold switch (BTS). The BTS, functioning as a threshold switch, consists of a two-terminal n-p-n structure with a floating p-base region similar to an open-base BJT. The switching mechanism is a single-transistor latch (STL). By connecting a BTS and a MOSFET in series, three stable states are maintained for a ternary logic system. Compared to other ternary devices, the BTS's low leakage current greatly reduces static power. The co-integration of BTS and MOSFET simplifies the fabrication process due to their structural similarity.
IEEE ELECTRON DEVICE LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Xing Zhao, Liu Yang, Jiahui Guo, Tao Xiao, Yi Zhou, Yuchun Zhang, Bin Tu, Tiehu Li, Bartosz A. Grzybowski, Yong Yan
Summary: Dynamic ionic gradients in films of gold nanoparticles can create transistors and logic circuits with a 400-fold modulation of electrical conductivity, as well as other electronic devices. These devices can be used to construct NOT, NAND and NOR logic gates, and a half-adder circuit. Additionally, transistors deposited on flexible substrates remain functional even when deformed and can withstand electrostatic discharges.
NATURE ELECTRONICS
(2021)
Review
Engineering, Electrical & Electronic
Sarina Nemati, Mostafa Haghi Kashani, Reza Faghih Mirzaee
Summary: This article reviews the design methodologies and prevalence of ternary full adders (TFAs). It finds that only 28.6% of the designs are partial TFAs, and only three designs consider an output carry voltage of 0V or V-DD. Additionally, the previous simulation setups are not realistic. Therefore, the authors select and simplify 10 different TFAs, and find that the simplified partial TFAs outperform their original versions in terms of delay, power, and transistor count.
IET CIRCUITS DEVICES & SYSTEMS
(2023)
Article
Engineering, Electrical & Electronic
Orian Leitersdorf, Ronny Ronen, Shahar Kvatinsky
Summary: Processing-in-memory (PIM) eliminates computation/memory data transfer by using devices that support both storage and logic. The state-of-the-art algorithm for stateful single-row multiplication, RIME, reduces latency by 5.1x using memristive partitions. This brief presents novel partition-based computation techniques, an in-memory multiplication algorithm based on CSAS technique, and a stateful full-adder that improves the state-of-the-art design. These contributions constitute MultPIM, a multiplier that reduces time complexity from quadratic to linear-log. For 32-bit numbers, MultPIM reduces latency by an additional 4.2x over RIME, while slightly reducing area overhead. Furthermore, MultPIM is optimized for full-precision matrix-vector multiplication and improves latency by 25.5x over FloatPIM matrix-vector multiplication.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
(2022)
Article
Engineering, Electrical & Electronic
Xiao-Yuan Wang, Peng-Fei Zhou, Jason K. Eshraghian, Chih-Yang Lin, Herbert Ho-Ching Iu, Ting-Chang Chang, Sung-Mo Kang
Summary: This paper presents the first experimental demonstration of a ternary memristor-CMOS logic family, showing significant improvements in data density and switching speed compared to conventional CMOS logic. The study systematically designs, simulates and experimentally verifies primitive logic functions, providing a promising foundation for practical implementations where high data density is critical.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
(2021)
Article
Engineering, Electrical & Electronic
Yu-Teng Chang, Kun-You Lin
Summary: The bidirectional active mixer based on Gilbert-cell topology operates at 28 GHz and can achieve both up- and down-conversion. It utilizes an IF bidirectional amplifier to compensate for the conversion loss of the Gilbert quad switch. With a low total dc power consumption of 8.4/6.4 mW under 1.2-V supply voltage, the mixer demonstrates a low conversion loss and LO power compared to traditional bidirectional passive mixers.
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
(2021)
Article
Chemistry, Physical
Sanggyu Chong, Sven M. J. Rogge, Jihan Kim
Summary: This study presents a computational design of metal pyrazolate metal organic frameworks (MOFs) containing naphthalene diimide (NDI), demonstrating flexibility and electrical conductivity. These MOFs show structural transitions under low pressures at room temperature and efficient charge transport due to redox-active NDI moieties. The flexibility of MOFs allows for configuration-dependent charge transport behavior and tunable electrical conductivity.
CHEMISTRY OF MATERIALS
(2022)
Article
Quantum Science & Technology
Guangchong Hu, Rose L. Ahlefeldt, Gabriele G. de Boo, Alexey Lyasota, Brett C. Johnson, Jeffrey C. McCallum, Matthew J. Sellars, Chunming Yin, Sven Rogge
Summary: This study examines the interactions of single pairs of rare earth ions, identifying high-resolution interactions and unusual optical interactions. By characterizing the Er3+ pair sites using optical Zeeman spectroscopy, the researchers observe a large Ising-like spin interaction and a unique magnetic-dipole/electric-dipole optical interaction, indicating potential applications for quantum processing with field-tunable rare earth pairs.
QUANTUM SCIENCE AND TECHNOLOGY
(2022)
Article
Physics, Applied
F. N. Krauth, S. K. Gorman, Y. He, M. T. Jones, P. Macha, S. Kocsis, C. Chua, B. Voisin, S. Rogge, R. Rahman, Y. Chung, M. Y. Simmons
Summary: Single spin qubits based on phosphorus donors in silicon are a promising candidate for a large-scale quantum computer. By utilizing a donor-based system, we can engineer the number of donor nuclei in each quantum dot to minimize the longitudinal magnetic field gradient and reduce charge noise, achieving lower error rates.
PHYSICAL REVIEW APPLIED
(2022)
Article
Physics, Applied
Edyta N. Osika, Sacha Kocsis, Yu-Ling Hsueh, Serajum Monir, Cassandra Chua, Hubert Lam, Benoit Voisin, Michelle Y. Simmons, Sven Rogge, Rajib Rahman
Summary: This study proposes a method to couple microwave photons to atomically precise donor spin-qubit devices in silicon using the hyperfine interaction intrinsic to donor systems and an electrically induced spin-orbit coupling. The research shows that strong spin-photon coupling can be achieved in realistic device conditions without the need for an external magnetic field gradient through characterization and estimation of the 1P-1P system.
PHYSICAL REVIEW APPLIED
(2022)
Article
Chemistry, Physical
Martin Blavier, Natalia Gelfand, R. D. Levine, F. Remacle
Summary: In this study, a matricization of the wave function is used to generate an exact separable expression for the entangled molecular wave function. The most compact approximation is obtained through Singular Value Decomposition.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Matteo Lucchini, Benoit Mignolet, Mario Murari, Cayo E. M. Goncalves, Giacinto D. Lucarelli, Fabio Frassetto, Luca Poletto, Francoise Remacle, Mauro Nisoli
Summary: The dissociation of the ethylene cation is a complex process with unknown mechanisms. This study uses femtosecond extreme-ultraviolet and infrared pulses to investigate the excited-state dynamics and nonradiative relaxation. The results show that the infrared pulse can excite the cationic ground state to higher excited states, leading to enhanced fragmentation yield.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Manuel Cardosa-Gutierrez, Guillaume De Bo, Anne-Sophie Duwez, Francoise Remacle
Summary: Substituted furan-maleimide Diels-Alder adducts connected by dynamic covalent bonds exhibit high attractiveness in mechanophores. Thermally activated [4 + 2] retro-Diels-Alder (DA) reactions proceed mainly through a concerted mechanism. An asymmetric mechanical force along the anchoring bonds in proximal dimethyl furan-maleimide adducts favors a sequential pathway. The findings provide a basis for the rational design of DA mechanophores in polymer science and photochemistry.
Article
Astronomy & Astrophysics
Natalia Gelfand, Ksenia Komarova, Francoise Remacle, Raphael D. D. Levine
Summary: The photodissociation of nitrogen in the vacuum ultraviolet is a major source of reactive nitrogen atoms in the upper atmosphere of Earth and throughout the solar system. Recent studies have shown that the photodissociation branching ratios exhibit strong energy dependence and oscillations in the 108,000-116,000 cm(-1) energy range, leading to different reactive products. High-level quantum chemistry calculations are used to investigate the potential curves of excited states and their couplings, providing insights into the photodissociation mechanism.
ASTROPHYSICAL JOURNAL
(2023)
Article
Chemistry, Physical
Natalia Gelfand, Ksenia Komarova, Francoise Remacle, Raphael D. Levine
Summary: Understanding multi-state electronic dynamics at higher excitation energies is crucial for studying various energy rich situations. Quantum chemistry provides the necessary background for energetics and coupling, while quantum dynamics is employed for the propagation in time. A demonstration of coupled electron-nuclear quantum dynamics through 47 electronic states is reported, achieving close agreement with experimental results. The non-monotonic branching between two exit channels in VUV photodissociation is reproduced and interpreted.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Natalia Gelfand, Francoise Remacle, Raphael D. Levine
Summary: After a singlephoton VUV absorption, the N-2 molecule dissociates into N atoms of different reactivities. Singlets are bound and dissociation occurs through the transfer induced by spin-orbit to the triplets. With the help of a time-reversed quantum dynamical approach, we can trace the path along the nonadiabatic couplings toward a specific exit channel.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
James R. Hamilton, Edoardo Amarotti, Carlo N. Dibenedetto, Marinella Striccoli, Raphael D. Levine, Elisabetta Collini, Francoise Remacle
Summary: In this study, electronic coherence signatures are directly identified in the time-frequency maps measured in 2DES, and the advantages of this approach are discussed. The fast-femtosecond beatings of electronic coherences in ensemble dimers of quantum dots (QDs) are applied and characterized at room temperature in solution. The time-frequency maps allow exploiting electronic coherences without additional post-processing and with fewer 2DES measurements.
Article
Engineering, Electrical & Electronic
B. Voisin, J. Salfi, D. D. St Medar, B. C. Johnson, J. C. McCallum, M. Y. Simmons, S. Rogge
Summary: A scanning tunnelling microscope can be used to perform spatially resolved wavefunction spectroscopy and local gate control of a quantum dot device consisting of phosphorus atoms in silicon. This solid-state quantum microscope is capable of controlling and locally probing the wavefunctions of atomic quantum dots in silicon. The microscope is constructed with a scanning tunnelling microscope tip, source and gate electrodes defined on an insulating silicon substrate, and uses a light-assisted method to switch between conductive and insulating states for stable positioning and local gating.
NATURE ELECTRONICS
(2023)
Article
Optics
Dominick J. Joch, Sergei Slussarenko, Yuanlong Wang, Alex Pepper, Shouyi Xie, Bin-Bin Xu, Ian R. Berkman, Sven Rogge, Geoff J. Pryde
Summary: This research demonstrates the generation of certified randomness based on quantum nonlocality, which can provide proof of randomness even in the presence of untrusted devices. It enables the generation of certified randomness in environmental regimes where fully device-independent protocols are not feasible.
Article
Chemistry, Physical
Martin Blavier, R. D. Levine, F. Remacle
Summary: Broad energy optical pulses induce ultrafast molecular dynamics with entanglement between nuclear and electronic degrees of freedom. Singular Value Decomposition (SVD) provides a representation of this entangled system, equivalent to a Schmidt decomposition. The level of entanglement is determined by the ordering and number of singular values. Non-adiabatic transitions also contribute to the entanglement in the system.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Archana Tankasala, Benoit Voisin, Zachary Kembrey, Joseph Salfi, Yu-Ling Hsueh, Edyta N. Osika, Sven Rogge, Rajib Rahman
Summary: This study investigates the two-electron states and exchange couplings for a phosphorous donor pair in silicon. The researchers used an atomistic full configuration interaction method to analyze donor separations and found three distinct donor separation regimes. The study also assessed the validity of simplified methods and examined the effects of donor depth on exchange couplings.
