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Investigation of a TMD-metal interface is essential for the effective functioning of monolayer TMD based field effect transistors (FETs). In this work, we employ Density Functional Theory (DFT) calculations to analyze the modulation of the…

Mesoscale and Nanoscale Physics · Physics 2016-03-23 Anuja Chanana , Santanu Mahapatra

Novel phenomena appear when two different oxide materials are combined together to form an interface. For example, at the interface of LaAlO3/SrTiO3, two dimensional conductive states form to avoid the polar discontinuity and magnetic…

Materials Science · Physics 2017-02-23 Fang Wang , Zhaohui Ren , He Tian , Shengyuan A. Yang , Yanwu Xie , Yunhao Lu , Jianzhong Jiang , Gaorong Han , Kesong Yang

Hydrogen resist lithography using the tip of a scanning tunneling microscope (STM) is employed for patterning p-type nanostructures in silicon. For this, the carrier density and mobility of boron $\delta$-layers, fabricated by gas-phase…

Mesoscale and Nanoscale Physics · Physics 2020-09-11 Tomáš Škereň , Sigrun Köster , Bastien Douhard , Claudia Fleischmann , Andreas Fuhrer

Recent experimental investigations have demonstrated that doping a semiconductor is a route to increase the thermal boundary conductance at metal/semiconductor interfaces. In this work, the influence of the electrical properties on heat…

Based on recent experiments, we describe the Mott insulating, but undimerized state of $TiOCl$ using the local-density approximation combined with multi-orbital dynamical mean field theory (LDA+DMFT) for this $3d^{1}$ system.Good agreement…

Strongly Correlated Electrons · Physics 2007-05-23 L. Craco , M. S. Laad , E. Müller-Hartmann

The electronic properties of single- and multi-cation transparent conducting oxides (TCOs) are investigated using first-principles density functional approach. A detailed comparison of the electronic band structure of stoichiometric and…

Materials Science · Physics 2015-05-18 Julia E. Medvedeva , Chaminda L. Hettiarachchi

In this paper we investigate the effect of Cd doping at ultra-low concentrations in SnO$_2$ both experimentally, by measuring the temperature dependence of the electric quadrupole hyperfine interactions with time-differential perturbed…

Materials Science · Physics 2019-01-23 Germán N. Darriba , Emiliano L. Muñoz , Artur W. Carbonari , Mario Rentería

The hole-doped NdNiO$_2$ layer deposited on the SrTiO$_{3}$ surface exhibits unconventional superconductivity. Here, we present a systematic study of the electronic and magnetic properties of the NdNiO$_2$ superconductor using the density…

Materials Science · Physics 2025-12-24 Sajid Sekh , Andrzej Ptok , Wojciech Brzezicki , Przemysław Piekarz , Andrzej M. Oleś

We envision the use of an indium tin oxide (ITO) thin film as part of a bi-layered silicon-photonics subwavelength device to boost nonlinearity-assisted all-passive nonreciprocal behavior. The asymmetric p-polarized oblique excitation of a…

Optics · Physics 2025-09-24 Diego M. Solís , Nader Engheta

A family of titanium oxypnictide materials BaTi2Pn2O (Pn = pnictogen) becomes superconducting when a charge and/or spin density wave is suppressed. With hole doping, isovalent doping and pressure, a whole range of tuning parameters is…

Superconductivity · Physics 2021-12-02 Han-Xiang Xu , Daniel Guterding , Harald O. Jeschke

Modulation-doped oxide two-dimensional electron gas (2DEG) formed at the LaMnO3 (LMO) buffered disorderd-LaAlO3/SrTiO3 (d-LAO/LMO/STO) heterointerface, provides new opportunities for electronics as well as quantum physics. Herein, we…

Materials Science · Physics 2017-04-05 Y. Z. Chen , Y. L. Gan , D. V. Christensen , Y. Zhang , N. Pryds

A dome-shaped phase diagram of superconducting critical temperature upon doping is often considered as a hallmark of unconventional superconductors. This behavior, observed in two-dimensional electron gases in $\mathrm{SrTiO}_3$-based…

The realization of ambient-pressure superconductivity in La$_3$Ni$_2$O$_7$ thin films raises a fundamental question: is the metallic ground state driven by lattice strain or interfacial charge reconstruction? Using fully self-consistent…

Superconductivity · Physics 2025-12-22 Guanlin Li , Cui-Qun Chen , Haoliang Shi , Zhengtao Liu , Hao Ma , Fubo Tian , Dao-Xin Yao , Defang Duan

Tunneling field-effect transistors (TFETs) based on 2D materials are promising steep sub-threshold swing (SS) devices due to their tight gate control. There are two major methods to create the tunnel junction in these 2D TFETs: electrical…

Mesoscale and Nanoscale Physics · Physics 2016-08-30 Hesameddin Ilatikhameneh , Gerhard Klimeck , Joerg Appenzeller , Rajib Rahman

Two dimensional materials such as graphene and transition metal dichalcogenides (TMDs) are promising for optical modulation, detection, and light emission since their material properties can be tuned on-demand via electrostatic doping. The…

The electrical, magnetic, thermal and optical characteristics of Gallium (Ga) doped silicene are investigated using density functional theory (DFT). The effect of doping is studied by tuning dopant concentrations as well as examining varied…

Materials Science · Physics 2022-04-05 Nzar Rauf Abdullah , Botan Jawdat Abdullah , Vidar Gudmundsson

Two-dimensional (2D) $\beta$-TeO$_2$ has gained attention as a promising material for optoelectronic and power device applications, thanks to its transparency and high hole mobility. However, the underlying mechanism behind its $p$-type…

Mesoscale and Nanoscale Physics · Physics 2025-01-08 Rafael Costa-Amaral , Soungmin Bae , Vu Thi Ngoc Huyen , Yu Kumagai

Rare earth doping is an effective way to convert chemically stable oxides into multifunctional materials with coupled electronic, optical, and magnetic properties. We present first principles calculations of pristine and Tm3+ doped Ca2SnO4…

Materials Science · Physics 2025-10-21 Shah Hussain , Sikander Azam , Umme Habiba , Qaiser Rafiq , Amin Ur Rahman , Hamada H. Amer , Yasir Saeed

We synthesized the pure and co-doped titanium dioxide (TiO$_2$) electrodes via spin coating. We examined the optical and electronic properties of as-prepared thin film electrodes with co-doping of transition metals and non-metals. The…

Applied Physics · Physics 2022-06-13 Manish K Vishwakarma , Monojit Bag , Puneet Jain

Transition metal dichalcogenide field-effect transistors (FETs) have been actively explored for low-power electronics, light detection, and sensing. Albeit promising, their performance is strongly limited by low-frequency noise (LFN). Here,…

Mesoscale and Nanoscale Physics · Physics 2017-04-04 Isidoro Martinez , Mario Ribeiro , Pablo Andres , Luis E. Hueso , Felix Casanova , Farkhad G. Aliev