Results 51 to 60 of about 1,217,265 (323)

Energy levels and far-infrared spectroscopy for two electrons in a semiconductor nanoring

, 2000
The effects of electron-electron interaction of a two-electron nanoring on the energy levels and far-infrared (FIR) spectroscopy have been investigated based on a model calculation which is performed within the exactly numerical diagonalization.
A. Lorke, C.A. Stafford, D. Mailly, D. Pines, E. Ben-Jacob, Hui Hu, I. Magnúsdóttir, J. Yi, J.-L. Zhu, J.-L. Zhu, J.-L. Zhu, J.H. Oh, Jia-Jiong Xiong, Jia-Lin Zhu, L. Wendler, L. Wendler, L. Wendler, L. Wendler, L.P. Kouwenhoven, Ll. Serra, M. Dineykhan, M. Eto, M. Wagner, R. Ugajin, R.J. Warburton, T. Chakraborty, V. Gudmundsson, V. Halonen, X.S. Chen   +28 more
core   +1 more source

Vibronic structure of the second triplet state of 1,3,5-hexatriene [PDF]

, 1978
Electron impact spectroscopy is used to study the vibronic structive of the second triplet state of 1,3,5 ...
Frueholz, Robert P., Kuppermann, Aron
core   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

The influence of x-ray pulse length on space-charge effects in optical pump/x-ray probe photoemission

New Journal of Physics, 2019
Pump-probe photoelectron spectroscopy (PES) is a versatile tool to investigate the dynamics of transient states of excited matter. Vacuum space-charge effects can mask these dynamics and complicate the interpretation of electron spectra.
Danilo Kühn, Erika Giangrisostomi, Raphael M Jay, Florian Sorgenfrei, Alexander Föhlisch   +4 more
doaj   +1 more source

Direct Determination of Electron-Phonon Coupling Matrix Element in a Correlated System

, 2010
High-resolution electron energy loss spectroscopy measurements have been carried out on an optimally doped cuprate Bi2Sr2CaCu2O8+{\delta}. The momentum-dependent linewidth and the dispersion of an A1 optical phonon are obtained.
E. W. Plummer, G. D. Gu, Göran Grimvall, H. Ibach, Huajun Qin, J. Wen, Jiandi Zhang, Jiandong Guo, Junren Shi, Kehui Wu, W. McMillan, Yanwei Cao, Z. J. Xu   +12 more
core   +1 more source

Measurement of electron-hole friction in an n-doped GaAs/AlGaAs quantum well using optical transient grating spectroscopy [PDF]

, 2011
We use phase-resolved transient grating spectroscopy to measure the drift and diffusion of electron-hole density waves in a semiconductor quantum well.
D. R. Tibbetts, D. A. Neamen, G. F. Giuliani, H. J. Eichler, J. D. Koralek, J. L. Reno, J. Orenstein, Luyi Yang, M. P. Lilly, S. M. Sze   +9 more
core   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

3D‐cavity‐confined CsPbBr3 quantum dots for visible‐light‐driven photocatalytic C(sp3)–H bond activation

Carbon Energy
Metal halide perovskite (MHP) quantum dots (QDs) offer immense potential for several areas of photonics research due to their easy and low‐cost fabrication and excellent optoelectronic properties. However, practical applications of MHP QDs are limited by
Yu‐Jie Gao, Handong Jin, Daniel A. Esteban, Bo Weng, Rafikul A. Saha, Min‐Quan Yang, Sara Bals, Julian A. Steele, Haowei Huang, Maarten B. J. Roeffaers   +9 more
doaj   +1 more source

Auger Electron Spectroscopy (AES) and X-ray Photoelectron Spectroscopy (XPS) Profiling of Self Assembled Monolayer (SAM) Patterns Based on Vapor Deposition Technique [PDF]

, 2022
Li Shi, Hongru Zhang, Zheng Liu, Junquan Xu, Guofang Fan, Wei Li, Qi Li, Xiao Hu, Gaoshan Jing   +8 more
openalex   +1 more source

Patatin‐domain‐containing (phospho)lipases under control: Mammalian co‐regulators and pathogenic activation mechanisms

FEBS Open Bio, EarlyView.
Patatin domain‐containing (phospho)lipases are lipid‐hydrolyzing enzymes central to metabolism, membrane remodeling, and signaling. Their activity relies on precise co‐activation mechanisms involving protein–protein interactions and conformational rearrangements.
Noopur Dubey, Lina Riegler‐Berket, Monika Oberer   +2 more
wiley   +1 more source