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Two-dimensional (2D) semiconductors have attracted considerable interest for their unique physical properties. Here, we report the intrinsic cryogenic electronic transport properties in few-layer MoSe$_2$ field-effect transistors (FETs)…

Materials Science · Physics 2023-06-27 Yinjiang Shao , Jian Zhou , Ning Xu , Jian Chen , Kenji Watanabe , Takashi Taniguchi , Yi Shi , Songlin Li

The availability of transistors capable of operating at low supply voltage is essential to improve the key performance metric of computing circuits, i.e., the number of operations per unit energy. In this paper, we propose a new device…

Mesoscale and Nanoscale Physics · Physics 2020-10-30 Demetrio Logoteta , Jiang Cao , Marco Pala , Philippe Dollfus , Youseung Lee , Giuseppe Iannaccone

We report a configuration strategy for improving the thermoelectric (TE) performance of two-dimensional (2D) transition metal dichalcogenide (TMDC) WS2 based on the experimentally prepared WS2/WSe2 lateral superlattice (LS) crystal. On the…

Materials Science · Physics 2022-07-27 Yonglan Hu , Tie Yang , Dengfeng Li , Guangqian Ding , Chaochao Dun , Dandan Wu , Xiaotian Wang

We carefully investigated the transport and capacitance properties of few layer charge density wave (CDW) 2H-TaS2 devices. The CDW transition temperature and the threshold voltage vary from device to device, which is attributed to the…

Mesoscale and Nanoscale Physics · Physics 2015-06-22 Y. F. Cao , K. M. Cai , L. J. Li , W. J. Lu , Y. P. Sun , K. Y. Wang

Atomically thin vanadium diselenide (VSe2 ) is a two-dimensional transition metal dichalcogenide exhibiting attractive properties due to its metallic 1T-phase. With the recent development of methods to manufacture high-quality monolayer VSe…

Strongly Correlated Electrons · Physics 2021-05-14 Tae Gwan Park , Byoung Ki Choi , Junho Park , Jungdae Kim , Young Jun Chang , Fabian Rotermund

In this study, we experimentally investigated the time dependence of the statistical properties of two-dimensional drying crack patterns to determine the functional form of fragment size distribution. Experiments using a thin layer of a…

Soft Condensed Matter · Physics 2020-09-30 Shin-ichi Ito , Akio Nakahara , Satoshi Yukawa

MoS2 is one of the most investigated and promising transition-metal dichalcogenides. Its popularity stems from the interesting properties of the monolayer phase, which can serve as the fundamental block for numerous applications. In this…

Materials Science · Physics 2024-07-30 Riccardo Dettori , Francesco Siddi , Luciano Colombo , Claudio Melis

Nanoscaled room-temperature ferroelectricity is ideal for developing advanced non-volatile high-density memories. However, reaching the thin film limit in conventional ferroelectrics is a long-standing challenge due to the possible critical…

Materials Science · Physics 2018-10-15 Siyuan Wan , Yue Li , Wei Li , Xiaoyu Mao , Wenguang Zhu , Hualing Zeng

Paper based thermoresistive sensors are fabricated by rubbing WS2 powder against a piece of standard copier paper, like the way a pencil is used to write on paper. The abrasion between the layered material and the rough paper surface erodes…

The lattice thermal expansion and conductivity in bulk Mo and W-based transition metal dichalcogenides are investigated by means of density functional and Boltzmann transport theory calculations. To this end, a recent van der Waals density…

Materials Science · Physics 2021-01-14 Daniel O. Lindroth , Paul Erhart

Nanomechanical resonators have emerged as sensors with exceptional sensitivities. These sensing capabilities open new possibilities in the studies of the thermodynamic properties in condensed matter. Here, we use mechanical sensing as a…

Developing van der Waals (vdW) homojunction devices requires materials with narrow bandgaps and simultaneously high hole and electron mobilities for bipolar transport, as well as methods to image and study spatial variations in carrier type…

We present a detailed study of thermal and electrical transport behavior of single crystal Titanium disulphide flakes, which belongs to the two dimensional, transition metal dichalcogenide class of materials. In-plane Seebeck effect…

Mesoscale and Nanoscale Physics · Physics 2018-01-16 Dhavala Suri , Vantari Siva , Shalikram Joshi , Kartik Senapati , P. K. Sahoo , Shikha Varma , R. S. Patel

We assess the performance of nonempirical, truly nonlocal and semi-local functionals with regard to structural and thermal properties of $3d$, $4d$, and $5d$ non-magnetic transition metals. We focus on constraint-based functionals and…

Materials Science · Physics 2021-01-14 Leili Gharaee , Paul Erhart , Per Hyldgaard

The packing of elastic sheets is investigated in a quasi two-dimensional experimental setup: a sheet is pulled through a rigid hole acting as a container, so that its configuration is mostly prescribed by the cross-section of the sheet in…

Classical Physics · Physics 2009-11-13 Stephanie Deboeuf , Mokhtar Adda-Bedia , Arezki Boudaoud

Understanding the physics underlying energy dissipation is necessary for the effective thermal management of devices based on two-dimensional (2D) materials and requires insights into the interplay between heat generation and diffusion in…

Mesoscale and Nanoscale Physics · Physics 2020-05-08 Zhun-Yong Ong , Myung-Ho Bae

Recently discovered 2D van der Waals magnetic materials, and specifically Iron-Germanium-Telluride ($\rm Fe_{5}GeTe_{2}$), have attracted significant attention both from a fundamental perspective and for potential applications. Key open…

The quest for room-temperature ductile ceramics has been repeatedly fueled by hopes for large-scale applications but so far has been not successful. Recent demonstrations of enhanced functional properties in ceramics through judicious…

Dislocations in crystalline materials are widely exploited to tailor the thermal conductivity of semiconductors and thermoelectrics, yet a critical gap persists: direct measurement of local thermal resistance at individual buried…

Materials Science · Physics 2026-05-20 Ruilin Mao , Bingyao Liu , Jiaxin Liu , Xiaoyue Gao , Junping Luo , Fachen Liu , Ruochen Shi , Jiade Li , Jinlong Du , Peng Gao

Metallic transition metal dichalcogenides like tantalum diselenide (TaSe$_{2}$) exhibit exciting behaviors at low temperatures, including the emergence of charge density wave (CDW) states. In this work, density functional theory (DFT) is…