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Molybdenum disulfide (MoS$_2$) is a high-potential material for nanoelectronic applications, especially when thinned to a few layers. Liquid phase exfoliation enables large-scale fabrication of thin films comprising single- and few-layer…

Materials Science · Physics 2024-11-19 Alireza Ghasemifard , Agnieszka Kuc , Thomas Heine

Polarization-dependent x-ray absorption spectroscopy at the B 1s edge of single-crystalline Mg(x)Al(1-x)B(2) reveals a strongly anisotropic electronic structure near the Fermi energy. Comparing spectra for superconducting compounds (x=0.9,…

Structural defects in 2D-transition metal dichalcogenides are critical in modulating their optical and electrical behavior. Nevertheless, precise defect control within the monolayer regime poses a significant challenge. Herein, a…

Mesoscale and Nanoscale Physics · Physics 2025-09-30 Anagha Gopinath , Faiha Mujeeb , Subhabrata Dhar , Jyoti Mohanty

Molecular wires are essential components for future nanoscale electronics. However, the preparation of individual long conductive molecules is still a challenge. MMX metal-organic polymers are quasi-one-dimensional sequences of single…

Mesoscale and Nanoscale Physics · Physics 2019-10-08 Pablo Ares , Pilar Amo-Ochoa , Jose M. Soler , Juan Jose Palacios , Julio Gomez-Herrero , Felix Zamora

We study the electrical and transport properties of monoatomic Mo wires with different structural characteristics. We consider first periodic wires with inter-atomic distances ranging between the dimerized wire to that formed by equidistant…

Mesoscale and Nanoscale Physics · Physics 2010-02-09 A. García-Fuente , A. Vega , V. M. García-Suárez , J. Ferrer

Binary carbides demonstrate attractive set of physical properties that are suitable for numerous and diverse applications. In the present study, we have explored the structural properties, electronic structures, elastic constants, acoustic…

Materials Science · Physics 2022-02-01 M. I. Naher , S. H. Naqib

We study the transport properties of deeply scaled monolayer MoS2 n-channel metal-oxide-semiconductor field effect transistors (MOSFETs) using full-band ballistic quantum transport simulations with an atomistic tight-binding Hamiltonian…

Mesoscale and Nanoscale Physics · Physics 2013-11-27 Jiwon Chang , Leonard F. Register , Sanjay K. Banerjee

Modulation of electronic properties of materials by electric fields is central to the operation of modern semiconductor devices, providing access to complex electronic behaviors and greater freedom in tuning the energy bands of materials.…

Materials Science · Physics 2024-01-09 Ashwin Ramasubramaniam , Doron Naveh

By replacing the alkali element in the newly discovered K2Mo3As3 superconductor, we successfully synthesized ternary molybdenum pnictides Rb2Mo3As3 and Cs2Mo3As3 through solid state reaction method. Powder X-ray diffraction analysis reveals…

Superconductivity · Physics 2018-05-30 Kang Zhao , Qing-Ge Mu , Tong Liu , Bo-Jin Pan , Bin-Bin Ruan , Lei Shan , Gen-Fu Chen , Zhi-An Ren

We have fabricated disordered superconducting nanowires of molybdenium silicide. A molybdenium nanowire is first deposited on top of silicon, and the alloy is formed by rapid thermal annealing. The method allows tuning of the crystal growth…

Superconductivity · Physics 2017-12-06 J. S. Lehtinen , A. Kemppinen , E. Mykkänen , M. Prunnila , A. J. Manninen

The quasiparticle (QP) band structures of both strainless and strained monolayer MoS$_{2}$ are investigated using more accurate many body perturbation \emph{GW} theory and maximally localized Wannier functions (MLWFs) approach. By solving…

Materials Science · Physics 2013-04-10 Hongliang Shi , Hui Pan , Yong-Wei Zhang , Boris I. Yakobson

In the quest to increase battery performance, nanostructuring battery electrodes gives access to architectures with electrical conductivity and solid-state diffusion regimes not accessible with traditional electrodes based on aggregated…

Employing density functional theory based calculations, we investigate structural, vibrational and strain-dependent electronic properties of an ultra-thin CdTe crystal structure that can be de- rived from its bulk counterpart. It is found…

Mesoscale and Nanoscale Physics · Physics 2017-11-15 Fadil Iyikanat , Baris Akbali , Jun Kang , R. Tugrul Senger , Yusuf Selamet , Hasan Sahin

Recent success in the growth of monolayer MoS$_2$ via chemical vapor deposition (CVD) has opened up prospects for the implementation of these materials into thin film electronic and optoelectronic devices. Here, we investigate the…

Using ab initio calculations we predict the existence of one-dimensional (1D), atomically confined plasmons at the edges of a zigzag MoS2 nanoribbon. The strongest plasmon originates from a metallic edge state localized on the sulfur dimers…

Mesoscale and Nanoscale Physics · Physics 2015-03-03 Kirsten Andersen , Karsten W. Jacobsen , Kristian S. Thygesen

The properties of crystals consisting of several components can be widely tuned. Often solid solutions are produced, where substitutional or interstitional disorder determines the crystal thermodynamic and mechanical properties. The…

Soft Condensed Matter · Physics 2019-10-30 Tadeus Ras , Michael Szafarczyk , Matthias Fuchs

Strain engineering is a vital way to manipulate the electronic properties of two-dimensional (2D) materials. As a typical representative of transition metal mono-chalcogenides (TMMs), a honeycomb CuSe monolayer features with one-dimensional…

Materials Science · Physics 2022-11-08 Gefei Niu , Jianchen Lu , Jianqun Geng , Shicheng Li , Hui Zhang , Wei Xiong , Zilin Ruan , Yong Zhang , Boyu Fu , Lei Gao , Jinming Cai

By means of density functional theory the electronic structure of the MgB2 superconductor was characterised and compared with that of the related iso-structural systems: AlB2, ZrB2, NbB2, and TaB2. Using the full-potential linearized…

Superconductivity · Physics 2009-11-07 Pablo de la Mora , Miguel Castro , Gustavo Tavizon

The structure of LiMoS2 has been experimentally determined for the first time. The approach of atomic pair distribution function (PDF) analysis was used because of the lack of well defined Bragg peaks due to the short structural coherence…

Materials Science · Physics 2009-11-07 V. Petkov , S. J. L. Billinge , P. Larson , S. D. Mahanti , T. Vogt , K. K. Rangan , M. G. Kanatzidis

We report the synthesis and characterization of a Si-based ternary semiconductor Mg$_3$Si$_2$Te$_6$, which exhibits a quasi-two-dimensional structure, where the trigonal Mg$_2$Si$_2$Te$_6$ layers are separated by Mg ions.…

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