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We report on the modulation of tunneling resistance in MoS2 monolayers by nano-indentation using an atomic force microscope (AFM). The resistance between the conductive AFM tip and the bottom electrode separated by a monolayer MoS2 is…

Materials Science · Physics 2013-11-15 Deyi Fu , Jian Zhou , Sefaattin Tongay , Kai Liu , Wen Fan , Tsu-Jae King Liu , Junqiao Wu

We report the fabrication of back-gated field-effect transistors (FETs) using ultra-thin, mechanically exfoliated MoSe2 flakes. The MoSe2 FETs are n-type and possess a high gate modulation, with On/Off ratios larger than 106. The devices…

Mesoscale and Nanoscale Physics · Physics 2013-01-04 S. Larentis , B. Fallahazad , E. Tutuc

We analyze the distributions of electric potential and field, polarization and charge, and the differential capacitance of a silicon metal-oxide-ferroelectric field effect transistor (MOSFET), in which a gate insulator consists of thin…

Applied Physics · Physics 2022-08-30 Eugene A. Eliseev , Anna N. Morozovska , Lesya P. Yurchenko , Maksym V. Strikha

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

We compute the electronic structure of two-dimensional (2D) materials decorated with self-assembled organic monolayers using density functional theory. We find that 2D materials are strongly impacted by near-field electrostatic effects…

Materials Science · Physics 2021-09-22 Qunfei Zhou , Bukuru Anaclet , Trevor Steiner , Michele Kotiuga , Pierre Darancet

The present work experimentally demonstrates the fabrication of CVD grown monolayer MoS2 ultra thin quantum well based double barrier resonant tunneling device (RTD) architecture well compatible with conventional CMOS fabrication…

Mesoscale and Nanoscale Physics · Physics 2026-05-05 Abir Mukherjee , Kajal Sharma , Ajit K Katiyar , Saranya Das , Samit K Ray , Samaresh Das

Many recent studies show that superconductivity not only exists in atomically thin monolayers but can exhibit enhanced properties such as higher transition temperature and stronger critical field. Nevertheless, besides being air unstable,…

Superconductivity · Physics 2018-05-09 J. M. Lu , O. Zheliuk , Q. H. Chen , I. Leermakers , N. E. Hussey , U. Zeitler , J. T. Ye

We demonstrate the field-effect transistor (FET) operation of molecularly-thin anatase phase produced through solid state transformation from Ti0.87O2 nanosheets. Monolayer Ti0.87O2 nanosheet with a thickness of 0.7 nm is two-dimensional…

Materials Science · Physics 2017-08-31 S. Sekizaki , M. Osada , K. Nagashio

Two-dimensional (2D) transition metal dichalcogenides (TMDs) such as molybdenum disulfide (MoS2) have been intensively investigated because of their exclusive physical properties for advanced electronics and optoelectronics. In the present…

Two-dimensionally confined electrons showing unusually large thermopower (S) have attracted attention as a potential approach for developing high performance thermoelectric materials. However, enhanced S has never been observed in electric…

Making ultra-short gate-length transistors significantly contributes to scaling the contacted gate pitch. This, in turn, plays a vital role in achieving smaller standard logic cells for enhanced logic density scaling. As we push the…

Mesoscale and Nanoscale Physics · Physics 2024-12-17 Keshari Nandan , Ateeb Naseer , Amit Agarwal , Somnath Bhowmick , Yogesh S. Chauhan

Two-dimensional (2D) materials are a new type of materials under intense study because of their interesting physical properties and wide range of potential applications from nanoelectronics to sensing and photonics. Monolayers of…

Two-dimensional (2D) transition metal dichalcogenides (TMDs) are prospective materials for quantum devices owing to their inherent 2D confinements. They also provide a platform to realize even lower-dimensional in-plane electron…

Mesoscale and Nanoscale Physics · Physics 2019-12-19 Ziqian Wang , Ruichun Luo , Isaac Johnson , Hamzeh Kashani , Mingwei Chen

We demonstrate controllable shift of the threshold voltage and the turn-on voltage in pentacene thin film transistors and rubrene single crystal field effect transistors (FET) by the use of nine organosilanes with different functional…

Materials Science · Physics 2009-11-10 K. P. Pernstich , A. N. Rashid , S. Haas , G. Schitter , D. Oberhoff , C. Goldmann , D. J. Gundlach , B. Batlogg

Monolayers of transition-metal dichalcogenides (TMDs) hold great promise as future nanoelectronic and optoelectronic devices. An essential feature for achieving high device performance is the use of suitable supporting substrates, which can…

Materials Science · Physics 2021-03-10 Nourdine Zibouche , Martin Schlipf , Feliciano Giustino

We report on the transport and low-frequency noise measurements of MoS2 thin-film transistors with "thin" (2-3 atomic layers) and "thick" (15-18 atomic layers) channels. The back-gated transistors made with the relatively thick MoS2…

Mesoscale and Nanoscale Physics · Physics 2023-07-19 S. L. Rumyantsev , C. Jiang , R. Samnakay , M. S. Shur , A. A. Balandin

The modification of electronic band structures and the subsequent tuning of electrical, optical, and thermal material properties is a central theme in the engineering and fundamental understanding of solid-state systems. In this scenario,…

Materials Science · Physics 2022-09-12 Valerio Di Giulio , P. A. D. Gonçalves , F. Javier García de Abajo

We study the impact of top SiO2 interlayer thickness on the memory window (MW) of Si channel ferroelectric field-effect transistor (FeFET) with TiN/SiO2/Hf0.5Zr0.5O2/SiOx/Si (MIFIS) gate structure. We find that the MW increases with the…

In ultra-thin two-dimensional (2-D) materials, the formation of ohmic contacts with top metallic layers is a challenging task that involves different processes than in bulk-like structures. Besides the Schottky barrier height, the transfer…

Mesoscale and Nanoscale Physics · Physics 2019-12-11 Aron Szabo , Achint Jain , Markus Parzefall , Lukas Novotny , Mathieu Luisier

Electronic and thermoelectric properties of a two-dimensional MoS2 monolayer containing atomic defects are investigated using density functional theory. All the atomic defects have been found to exhibit endothermic nature. Electronic…

Mesoscale and Nanoscale Physics · Physics 2019-05-17 Munish Sharma , Ashok Kumar , P. K. Ahluwalia
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