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Two-dimensional (2D) semiconductors are likely to dominate next-generation electronics due to their advantages in compactness and low power consumption. However, challenges such as high contact resistance and inefficient doping hinder their…

Materials Science · Physics 2024-10-11 Raagya Arora , Ariel R. Barr , Daniel T. Larson , Michele Pizzochero , Efthimios Kaxiras

In this paper, through careful calibration, we demonstrate the possibility of using a single set of models and parameters to model the ON current and Sub-threshold Slope (SS) of an nMOSFET at 300K and 5K using Technology Computer-Aided…

Computational Physics · Physics 2024-01-01 Prabjot Dhillon , Nguyen Cong Dao , Nguyen Cong Dao , Hiu Yung Wong

3T TRAM with doping profile (P+PNPNN+) is experimentally demonstrated on a silicon photonic platform. By using additional implant layers, this device provides excellent memory performance compared to the conventional structure (PNPN). TCAD…

Systems and Control · Electrical Eng. & Systems 2024-09-13 Changseob Lee , Ikhyeon Kwon , Anirban Samanta , Siwei Li , S. J. Ben Yoo

In the present work, we have investigated the performances of L shaped Vertical broken bandgapheterostructureInSb InAsn-channel tunnel field effect transistors TFETs of 4 nm thin channel structures with the gate lengths of 20nm. We have…

Materials Science · Physics 2014-08-13 Bhupesh Bishnoi , Bahniman Ghosh

Two-dimensional transitional metal dichalcogenide (TMD) field-effect transistors (FETs) are promising candidates for future electronic applications, owing to their excellent transport properties and potential for ultimate device scaling.…

Stacks of a few intrinsic tunnel junctions were micro-fabricated on the surface of Bi-2212 single crystals. The number of junctions in a stack was tailored by progressively increasing the height of the stack by ion-beam etching, while its…

Superconductivity · Physics 2009-10-31 Yong-Joo Doh , Hu-Jong Lee , Hyun-Sik Chang

Using the structural data of the La2CuO4 compound both in the low temperature tetragonal phase and in the isotropic phase we have derived an effective t-J model with hoppings t and superexchange interactions J extended up to fourth and…

Superconductivity · Physics 2009-11-07 V. I. Anisimov , M. A. Korotin , I. A. Nekrasov , Z. V. Pchelkina , S. Sorella

We propose superconducting-semiconducting (super-semi) qubit and coupler designs based on high-quality, compact through-silicon vias (TSVs). An interposer "probe" wafer containing TSVs is used to contact a sample wafer with, for example, a…

Quantum Physics · Physics 2023-10-05 Thomas M. Hazard , Andrew J. Kerman , Kyle Serniak , Charles Tahan

Three-terminal magnetic tunnel junction (MTJ), where non-volatile magnetization state can be switched via spin orbit torque (SOT), is attracting massive research interests since it is featured by high speed, low power, nearly unlimited…

Applied Physics · Physics 2025-06-13 Hongjie Ye , Zhaohao Wang

In-plane heterojunction tunnel field effect transistors based on monolayer transition metal dichalcogenides are studied by means of self-consistent non-equilibrium Green's functions simulations and an atomistic tight-binding Hamiltonian. We…

Mesoscale and Nanoscale Physics · Physics 2018-11-14 Jean Choukroun , Marco Pala , Shiang Fang , Efthimios Kaxiras , Philippe Dollfus

Bipolar carrier transport is often a limiting factor in the thermoelectric efficiency of narrow bandgap materials at high temperatures due to the reduction in the Seebeck coefficient and the introduction of an additional term to the thermal…

Materials Science · Physics 2019-03-27 Samuel Foster , Neophytos Neophytou

The generalized spin stiffness constant for a doped quantum antiferromagnet has been investigated both analytically and numerically as a function of doping concentration at zero temperature, based on the strongly correlated t-J model on…

Strongly Correlated Electrons · Physics 2016-09-21 Suraka Bhattacharjee , Ranjan Chaudhury

In this paper, we report a novel chemical doping technique to reduce the contact resistance (Rc) of transition metal dichalcogenides (TMDs) - eliminating two major roadblocks (namely, doping and high Rc) towards demonstration of…

We investigate the superconducting transition in a doped antiferromagnet. Based on the phase string framework of the t-J model, an effective model describing the phase-coherence transition is obtained and is studied through duality…

Superconductivity · Physics 2007-05-23 Ming Shaw , Z. Y. Weng , C. S. Ting

Topology is a key ingredient driving the emergence of quantum devices. Topological field-effect transistor (TFET) has been proposed to outperform the conventional FET by replacing the ON state with topology-protected quantized conductance,…

Materials Science · Physics 2023-07-25 Xiaoyin Li , Feng Liu

The long term scaling prospects for solid-state quantum computing architectures relies heavily on the ability to simply and reliably measure and control the coherent electron interaction strength, known as the tunnel coupling, $t_c$. Here,…

A study on a parametrized model of a composite barrier FTJ (three-interface system, with a non-polar dielectric layer) under an external bias voltage and at room temperature, using FEM-based simulations, was performed. The approach involves…

Mesoscale and Nanoscale Physics · Physics 2022-07-20 C. Tibeica , T. Sandu , O. Nedelcu , R. Plugaru , N. Plugaru

This paper depicts the actual variation of gate induced drain leakage current with impurity doping concentration by complete qualitative and quantitative approach. De Casteljaus algorithm is applied to describe the band to band tunneling in…

Mesoscale and Nanoscale Physics · Physics 2019-04-11 Arnesh Sen , Jayoti Das

Theoretical predictions are made for the current-voltage characteristics of two-dimensional heterojunction interlayer tunneling field-effect transistors (Thin-TFETs), focusing on the magnitude of the current that is achievable in such…

Mesoscale and Nanoscale Physics · Physics 2017-09-22 Jun Li , Yifan Nie , Kyeongjae Cho , Randall M. Feenstra

Domain-wall memory (DWM) has SRAM class access performance, low energy, high endurance, high density, and CMOS compatibility. Recently, shift reliability and processing-using-memory (PuM) proposals developed a need to count the number of…

Emerging Technologies · Computer Science 2022-05-26 Prayash Dutta , Albert Lee , Kang L. Wang , Alex K. Jones , Sanjukta Bhanja