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We develop a detailed analysis of electron transport in normal diffusive con- ductors in the presence of proximity induced superconductivity. A rich structure of temperature and energy dependencies for the system condcutcance, density of…

凝聚态物理 · 物理学 2007-05-23 A. D. Zaikin , F. K. Wilhelm , A. A. Golubov

We have investigated the charge carrier transport in organic molecular semiconductors. It has been found that mobility is a function of electric field and temperature due to hopping conduction. Several theoretical models for charge…

材料科学 · 物理学 2007-05-23 Ajit Kumar Mahapatro , Subhasis Ghosh

At low energy scales charge transport in the insulating Si:P is dominated by activated hopping between the localized donor electron states. Thus, theoretical models for a disordered system with electron-electron interaction are appropriate…

无序系统与神经网络 · 物理学 2008-03-03 Elvira Ritz , Martin Dressel

On the basis of the Kubo formula we evaluated the optical conductivity of a graphene sheet. The full behavior of frequency as well as temperature dependence of the optical conductivity is presented. We show that the anisotropy of…

介观与纳米尺度物理 · 物理学 2008-10-07 Chao Zhang , Lei Chen , Zhongshui Ma

The electronic properties of interfaces between two different solids can differ strikingly from those of the constituent materials. For instance, metallic conductivity, and even superconductivity, have been recently discovered at interfaces…

材料科学 · 物理学 2009-11-13 H. Dias Alves , A. S. Molinari , H. Xie , A. F. Morpurgo

Motivated by recent experimental studies of hydrogen-bonded molecular conductors $\kappa$-$X_3$(Cat-EDT-TTF)$_2$ [$X$=H, D], interplays of protons and correlated electrons, and their effects on magnetic, dielectric, and optical properties,…

强关联电子 · 物理学 2018-06-13 Makoto Naka , Sumio Ishihara

Doped lithium lanthanum zirconium oxide (LLZO) is a promising class of solid electrolytes for lithium-ion batteries due to their good electrochemical stability and compatibility with Li metal anodes. Ionic diffusivity in these ceramics is…

材料科学 · 物理学 2023-05-16 Juan C. Verduzco , Ernesto E. Marinero , Alejandro Strachan

The bad metallic phase with resistivity above the Mott-Ioffe-Regel limit, which appears also in cuprate superconductors, was recently understood by cold atom and computer simulations of the Hubbard model via charge susceptibility and charge…

超导电性 · 物理学 2024-03-15 Jure Kokalj

The low-field electron diffusion, noise, and the conduction in amorphous chalcogenides are investigated by means of a Monte Carlo implementation of a full three- dimensional variable-range hopping transport model between localized states.…

材料科学 · 物理学 2012-03-05 Fabrizio Buscemi , Enrico Piccinini , Rossella Brunetti , Massimo Rudan , Carlo Jacoboni

Two-dimensional (2d) nano-electronics, plasmonics, and emergent phases require clean and local charge control, calling for layered, crystalline acceptors or donors. Our Raman, photovoltage, and electrical conductance measurements combined…

We investigate the energy relaxation segmentation in a resonant tunneling heterostructures by assessing the optical and transport dynamics of non-equilibrium charge carriers. The electrical and optical properties are analyzed using…

In this work, we develop an extended uniform potential (UP) model for a membrane nanopore by including two different charging mechanisms of the pore walls, namely by electronic charge and by chemical charge. These two charging mechanisms…

化学物理 · 物理学 2019-12-25 L. Zhang , P. M. Biesheuvel , I. I. Ryzhkov

We report a novel negative photoconductivity (NPC) mechanism in n-type indium arsenide nanowires (NWs). Photoexcitation significantly suppresses the conductivity with a gain up to 10^5. The origin of NPC is attributed to the depletion of…

介观与纳米尺度物理 · 物理学 2015-11-03 Yiming Yang , Xingyue Peng , Hong-Seok Kim , Taeho Kim , Sanghun Jeon , Hang Kyu Kang , Wonjun Choi , Jindong Song , Yong-Joo Doh , Dong Yu

Electronic trap states are a critical yet unavoidable aspect of semiconductor devices, impacting performance of various electronic devices such as transistors, memory devices, solar cells, and LEDs. The density, energy level, and position…

Transparent Conductive Oxides (TCOs) are a class of materials that combine high optical transparency with high electrical conductivity. This property makes them uniquely appealing as transparent-conductive electrodes in solar cells and…

CuI has been recently rediscovered as a p-type transparent conductor with a high figure of merit. Even though many metal iodides are hygroscopic, the effect of moisture on the electrical properties of CuI has not been clarified. In this…

Superionic conductors, or solid-state ion-conductors surpassing 0.01 S/cm in conductivity, can enable more energy dense batteries, robust artificial ion pumps, and optimized fuel cells. However, tailoring superionic conductors require…

仪器与探测器 · 物理学 2024-07-23 Kim H. Pham , Scott K. Cushing

We report the electronic transport properties of a new photo-addressable molecular switch. The switching process relies on a new concept based on linear {\pi}-conjugated dynamic systems, in which the geometry and hence the electronic…

介观与纳米尺度物理 · 物理学 2017-06-13 S. Lenfant , Y. Viero , C. Krzeminski , D. Vuillaume , D. Demeter , I. Dobra , M. Ocafrain , P. Blanchard , J. Roncali , C. van Dyck , J. Cornil

In this study, we demonstrated experimentally and theoretically that the charge transport mechanism in amorphous Hf$_{0.5}$Zr$_{0.5}$O$_2$ is phonon-assisted tunneling between traps like in HfO$_2$ and ZrO$_2$. The thermal trap energy of…

材料科学 · 物理学 2015-03-18 D. R. Islamov , T. V. Perevalov , V. A. Gritsenko , C. H. Cheng , A. Chin

High-entropy oxides (HEOs), as multi-component ceramics with high configurational entropy, have been of recent interest due to their attractive properties including photocatalytic activity for H2 production and CO2 conversion. However, the…