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The mechanisms of solid-state electron transport (ETp) via a monolayer of immobilized Azurin (Az) was examined by conducting probe atomic force microscopy (CP-AFM), both as function of temperature (248 - 373K) and of applied tip force (6-12…

Electron transfer (ET) through proteins, a fundamental element of many biochemical reactions, has been studied intensively in solution. We report the results of electron transport (ETp) measurements across proteins, sandwiched between two…

介观与纳米尺度物理 · 物理学 2009-03-26 Izhar Ron , Lior Sepunaro , Stella Izhakov , Noga Friedman , Israel Pecht , Mordechai Sheves , David Cahen

Electrons can migrate via proteins over distances that are considered long for non-conjugated systems. Proteins' nano-scale dimensions and the enormous flexibility of their structures and chemistry makes them fascinating subjects for…

生物物理 · 物理学 2012-11-13 Nadav Amdursky , Israel Pecht , Mordechai Sheves , David Cahen

Kinetic isotope effect (KIE) is a common physicochemical effect to elucidate complicated microscopic reaction mechanism in biological, chemical and physical systems. Especially, the exchange of hydrogen to deuterium is a standard approach…

化学物理 · 物理学 2019-08-16 Ken Sakaushi

Electromagnetically induced transparency (EIT) in metastable helium at room temperature is experimentally shown to exhibit light storage capabilities for intermediate values of the detuning between the coupling and probe beams and the…

量子物理 · 物理学 2014-06-17 M. -A. Maynard , T. Labidi , M. Mukhtar , S. Kumar , R. Ghosh , F. Bretenaker , F. Goldfarb

Quantum proton tunneling (QPT) in the two representative multi-electron/-proton transfer electrode processes, i.e. hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR), was investigated by using polycrystalline platinum…

化学物理 · 物理学 2019-07-02 Ken Sakaushi

DIII-D discharges that transition to H-mode solely with off-axis electron cyclotron heating (ECH) often exhibit strong off-axis peaking of electron temperature profiles at the heating location. Electron heat transport properties near these…

等离子体物理 · 物理学 2023-10-20 Ruifeng Xie , Max E. Austin , Kenneth W. Gentle , Craig C. Petty

The structural, dielectric, and thermodynamic properties of the hydrogen-bonded ferroelectric crystal potassium dihydrogen phosphate ($\mathbf{KH_2PO_4}$), KDP for short, differ significantly from those of DKDP ($\mathbf{KD_2PO_4}$). It is…

计算物理 · 物理学 2024-04-15 Bingjia Yang , Pinchen Xie , Roberto Car

Normally, understanding the temperature dependent transport properties of strongly correlated electron systems remains challenging task due to complex electronic structure and its variations (around E$_{F}$) with temperature. Here, we…

强关联电子 · 物理学 2017-03-21 Saurabh Singh , Devendra Kumar , Sudhir K. Pandey

The vector and tensor analysing powers, $A_y$ and $A_{yy}$, of the $\vec{p}d \to n\{pp\}_{s}$ charge-exchange reaction have been measured at a beam energy of 600 MeV at the COSY-ANKE facility by using an unpolarised proton beam incident on…

We study the temperature dependence of the conductivity of the 2D electronic solid. In realistic samples, a domain structure forms in the solid and each domain randomly orients in the absence of the in-plane field. At higher temperature,…

介观与纳米尺度物理 · 物理学 2009-11-10 Shi-Jie Yang , Yue Yu

The effects of multi-photon-exchange and other higher-order QED corrections on elastic electron-proton scattering have been a subject of high experimental and theoretical interest since the polarization transfer measurements of the proton…

核实验 · 物理学 2021-06-23 A. J. R. Puckett , J. C. Bernauer , A. Schmidt

The molecular dynamics of solid benzene are extremely complex; especially below 77 K, its inner mechanics remain mostly unexplored. Benzene is also a prototypical molecular crystal that becomes energetically frustrated at low temperatures…

化学物理 · 物理学 2017-03-07 F. Yen , S. Z. Huang , S. X. Hu , L. Y. Zhang , L. Chen

The temperature dependent stepwise deprotonation of 5,10,15,20-tetra(p-hydroxyphenyl)porphyrin is investigated using photoelectron spectroscopy. An abundance of pyrrolic relative to iminic nitrogen and a decrease in the ratio of the amount…

Hydrogen embrittlement mechanisms of steels have been studied for several decades. Understanding hydrogen diffusion behavior in steels is crucial towards both developing predictive models for hydrogen embrittlement and identifying…

We analyze, through molecular dynamics simulations, the temperature dependence of the thermal conductivity (k) of chain-oriented amorphous polyethylene (PE). We find that at increasing levels of orientation, the temperature corresponding to…

材料科学 · 物理学 2019-08-14 Rajmohan Muthaiah , Jivtesh Garg

Electronically excited atoms or molecules in an environment are often subject to interatomic/intermolecular Coulombic decay (ICD) and/or electron transfer mediated decay (ETMD) mechanisms. A few of the numerous variables that can impact…

化学物理 · 物理学 2022-09-15 Ravi Kumar , Dr. Nayana Vaval

We investigated optical absorption coefficient spectra of an epitaxial VO2 film in wide photon energy (0.5 - 5.0 eV) and temperature (100 - 380 K) regions. In its insulating phase, we observed two d-d transition peaks around 1.3 eV and 2.7…

强关联电子 · 物理学 2007-05-23 C. H. Koo , J. S. Lee , M. W. Kim , Y. J. Chang , T. W. Noh , J. H. Jung B. G. Chae , H. -T. Kim

We propose a new method for accurately calculating electrical transport properties of a lightly-doped thermoelectric material from density functional theory (DFT) calculations, based on experimental data and density functional theory…

材料科学 · 物理学 2014-01-14 Alireza Faghaninia , Cynthia S. Lo

The stability, electronic structure, optical and thermoelectric properties of Te-doped BaTiO3 are investigated by first-principal calculation based on the density functional theory and Boltzmann transport theory implemented in WIEN2K and…

材料科学 · 物理学 2022-02-16 Meryem Ziati , Hamid Ez-Zahraouy
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