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The electronic and optical properties of the paradigmatic F4TCNQ-doped pentacene in the low-doping limit are investigated by a combination of state-of-the-art many-body \emph{ab initio} methods accounting for environmental screening…

Materials Science · Physics 2017-07-25 Jing Li , Gabriele D'Avino , Anton Pershin , Denis Jacquemin , Ivan Duchemin , David Beljonne , Xavier Blase

We study the conductance of an interconnect between two graphene leads formed by a single-atom carbon chain. Its dependence on the chemical potential and the number of atoms in the chain is qualitatively different from that in the case of…

Mesoscale and Nanoscale Physics · Physics 2011-09-12 Wei Chen , A. V. Andreev , G. F. Bertsch

The exceptional charge transport properties of single-walled carbon nanotubes (SWCNTs) enable numerous ultrafast optoelectronic applications. Modifying SWCNTs by introducing defects significantly impacts the performance of nanotube-based…

The solid-state structures of organic charge transfer (CT) salts are critical in determining their mode of charge transport, and hence their unusual electrical properties, which range from semiconducting through metallic to superconducting.…

Mesoscale and Nanoscale Physics · Physics 2016-01-05 Andrea Vezzoli , Iain Grace , Carly Brooke , Kun Wang , Colin J. Lambert , Bingqian Xu , Richard J. Nichols , Simon J. Higgins

We review recent advances in the physics of strongly interacting charged systems functioning in water at room temperature. We concentrate on the phenomena which go beyond the framework of mean field theories, whether linear Debye-Huckel or…

Soft Condensed Matter · Physics 2007-05-23 A. Yu. Grosberg , T. T. Nguyen , B. I. Shklovskii

The layered $3d$ transition metal dichalcogenide (TMD) CoTe$_2$ is a topological Dirac Type-II metal. However, the Co $3d$-bands in CoTe$_2$ do not exhibit the expected correlation-induced band narrowing seen in CoO. We address this…

Strongly Correlated Electrons · Physics 2026-02-26 A. R. Shelke , C. -W. Chuang , S. Hamamoto , M. Oura , M. Yoshimura , N. Hiraoka , C. -N. Kuo , C. -S. Lue , A. Fujimori , A. Chainani

We investigate the chemical bonding characteristics of the transition metal dichalcogenides based on their static and dynamical atomic charges within Density Functional Theory. The dynamical charges of the trigonal transition metal…

Fluctuating-charge models are computationally efficient methods of treating polarization and charge-transfer phenomena in molecular mechanics and classical molecular dynamics simulations. They are also theoretically appealing as they are…

Chemical Physics · Physics 2010-04-02 Jiahao Chen

Data for inelastic processes due to hydrogen atom collisions with manganese and titanium are needed for accurate modeling of the corresponding spectra in late-type stars. In this work excitation and charge transfer in low-energy Mn+H and…

Solar and Stellar Astrophysics · Physics 2020-05-13 Jon Grumer , Paul S. Barklem

Using a combination of X-ray absorption spectroscopy experiments with first principle calculations, we demonstrate that insulating KCuO_2 contains Cu in an unusually-high formal-3+ valence state, the ligand-to-metal (O to Cu) charge…

Strongly Correlated Electrons · Physics 2015-11-25 D. Choudhury , P. Rivero , D. Meyers , X. Liu , Y. Cao , S. Middey , M. J. Whitaker , S. Barraza-Lopez , J. W. Freeland , M. Greenblatt , J. Chakhalian

We develop a theory of electron transport through quantum dots that are weakly coupled to ferromagnetic leads. The theory covers both the linear and nonlinear transport regime, takes non-collinear magnetization of the leads into account,…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Matthias Braun , Jürgen König , Jan Martinek

By using the Kubo linear response theory with the Keldysh Green function approach, we investigate the mechanism leading to the negative differential transmission in system with the equilibrium electron density much smaller than the…

Mesoscale and Nanoscale Physics · Physics 2013-12-19 B. Y. Sun , M. W. Wu

In this lecture we present some interesting issues that arise when the dynamics of the charge carriers in the CuO$_2$ planes of the high temperature superconductors is considered. Based on the qualitative picture of doping, set by…

Superconductivity · Physics 2009-10-30 E. Tutis , H. Niksic , S. Barisic

Investigation of the inherent field-driven charge transport behaviour of 3D lead halide perovskites has largely remained a challenging task, owing primarily to undesirable ionic migration effects near room temperature. In addition, the…

General properties of charge carrier transport in disordered organic materials are discussed. Spatial correlation between energies of transport sites determines the form of the drift mobility field dependence. Particular kind of spatial…

Materials Science · Physics 2013-03-21 S. V. Novikov

Energy transport can reveal information about interacting many-body systems beyond other transport probes. In particular, in one dimension it has been shown that the energy current is directly proportional to the central charge, thus…

Strongly Correlated Electrons · Physics 2020-05-27 Sonja Fischer , Christoph Karrasch , Dirk Schuricht , Lars Fritz

Doped organic semiconductors are critical to emerging device applications, including thermoelectrics, bioelectronics, and neuromorphic computing devices. It is commonly assumed that low conductivities in these materials result primarily…

The mechanisms and efficiency of charge transport in lithium peroxide (Li2O2) are key factors in understanding the performance of non-aqueous Li-air batteries. Towards revealing these mechanisms, here we use first-principles calculations to…

Materials Science · Physics 2013-06-25 Maxwell D. Radin , Donald J. Siegel

The formation of bound electron-hole pairs, also called charge-transfer (CT) states, in organic-based photovoltaic devices is one of the dominant loss mechanisms hindering performance. While CT state dynamics following electron transfer…

This letter reports a charge transfer p-doping scheme which utilizes one-electron oxidizing molecules to obtain stable, unipolar carbon nanotube transistors with a self-aligned gate structure. This doping scheme allows one to improve…

Materials Science · Physics 2015-07-20 Jia Chen , Christian Klinke , Ali Afzali , Phaedon Avouris