Results 41 to 50 of about 2,148,167 (385)

Investigating charge dynamics at lead halide perovskite single crystal surfaces

JPhys Energy
To further develop lead halide perovskites for their application in solar cells, understanding the material’s fundamental behavior under illumination is necessary.
Birgit Kammlander, Alberto García-Fernández, Sebastian Svanström, Erika Giangrisostomi, Ruslan Ovsyannikov, Håkan Rensmo, Ute B Cappel   +6 more
doaj   +1 more source

A Multiwavelength Investigation of PSR J2229+6114 and its Pulsar Wind Nebula in the Radio, X-Ray, and Gamma-Ray Bands

The Astrophysical Journal, 2023
G106.3+2.7, commonly considered to be a composite supernova remnant (SNR), is characterized by a boomerang-shaped pulsar wind nebula (PWN) and two distinct (“head” and “tail”) regions in the radio band. A discovery of very-high-energy gamma-ray emission (
I. Pope, K. Mori, M. Abdelmaguid, J. D. Gelfand, S. P. Reynolds, S. Safi-Harb, C. J. Hailey, H. An, NuSTAR Collaboration, P. Bangale, P. Batista, W. Benbow, J. H. Buckley, M. Capasso, J. L. Christiansen, A. J. Chromey, A. Falcone, Q. Feng, J. P. Finley, G. M Foote, G. Gallagher, W. F Hanlon, D. Hanna, O. Hervet, J. Holder, T. B. Humensky, W. Jin, P. Kaaret, M. Kertzman, D. Kieda, T. K. Kleiner, N. Korzoun, F. Krennrich, S. Kumar, M. J. Lang, G. Maier, C. E McGrath, C. L. Mooney, P. Moriarty, R. Mukherjee, S. O’Brien, R. A. Ong, N. Park, S. R. Patel, K. Pfrang, M. Pohl, E. Pueschel, J. Quinn, K. Ragan, P. T. Reynolds, E. Roache, I. Sadeh, L. Saha, G. H. Sembroski, D. Tak, J. V. Tucci, A. Weinstein, D. A. Williams, J. Woo, VERITAS Collaboration   +59 more
doaj   +1 more source

Non Thermal‐Driven Photocatalytic Ammonia Decomposition at Near‐Room Temperature on a Plasmonic Nanocone Array

Advanced Functional Materials, EarlyView.
Plasmonic photocatalytic ammonia decomposition occurs at near‐room temperature on a plasmonic Au nanocone array under visible light illumination. The nanostructure efficiently harnesses plasmonic modes, leading to increased reaction rates upon plasmon decay.
Thanh‐Lam Bui, S. M. Hossein Hejazi, Jan Navrátil, Hana Kmentová, Petr Bábor, Olivier Henrotte, Luca Mascaretti, Matteo Bisetto, Stephen K. Sanders, Andrea Schirato, Michal Otyepka, Piotr Błoński, Tiziano Montini, Radek Zboril, Paolo Fornasiero, Alessandro Alabastri, Alberto Naldoni, Stepan Kment   +17 more
wiley   +1 more source

Circular dichroism in multiphoton ionization of resonantly excited helium ions near channel closing

Scientific Reports
The circular dichroism (CD) of photoelectrons generated by near-infrared (NIR) laser pulses using multiphoton ionization of excited He+ ions in the 3p(m= +1) state is investigated.
René Wagner, Markus Ilchen, Nicolas Douguet, Philipp Schmidt, Niclas Wieland, Carlo Callegari, Zachary Delk, Alexander Demidovich, Giovanni De Ninno, Michele Di Fraia, Jiri Hofbrucker, Michele Manfredda, Valerija Music, Oksana Plekan, Kevin C. Prince, Daniel E. Rivas, Marco Zangrando, Alexei N. Grum-Grzhimailo, Klaus Bartschat, Michael Meyer   +19 more
doaj   +1 more source

X-ray sources as tracers of the large-scale structure in the Universe

, 2000
We review the current status of studies of large-scale structure in the X-ray Universe. After motivating the use X-rays for cosmological purposes, we discuss the various approaches used on different angular scales including X-ray background multipoles ...
Barcons, X., Carrera, F. J., Ceballos, M. T., Mateos, S.   +3 more
core   +2 more sources

Flux‐Regulated Crystallization of Perovskites Using Machine Learning‐Predicted Solvent Evaporation Rates for X‐Ray Detectors

Advanced Functional Materials, EarlyView.
By integrating machine learning into flux‐regulated crystallization (FRC), accurate prediction of solvent evaporation rates in real time, improving crystallization control and reducing crystal growth variability by over threefold, is achieved. This enhances the reproducibility and quality of perovskite single crystals, leading to reproducible ...
Tatiane Pretto, Sergey Dayneko, Antoine Pavesic Junior, Nicholas Sandor, Alexander Hart, Yuki Haruta, Magdalena Bazalova‐Carter, Marcos J. L. Santos, Makhsud I. Saidaminov   +8 more
wiley   +1 more source

Chiral spin-liquid-like state in pyrochlore iridate thin films

Nature Communications
The pyrochlore iridates have become ideal platforms to unravel fascinating correlated and topological phenomena that stem from the intricate interplay among strong spin-orbit coupling, electronic correlations, lattice with geometric frustration, and ...
Xiaoran Liu, Jong-Woo Kim, Yao Wang, Michael Terilli, Xun Jia, Mikhail Kareev, Shiyu Peng, Fangdi Wen, Tsung-Chi Wu, Huyongqing Chen, Wanzheng Hu, Mary H. Upton, Jungho Kim, Yongseong Choi, Daniel Haskel, Hongming Weng, Philip J. Ryan, Yue Cao, Yang Qi, Jiandong Guo, Jak Chakhalian   +20 more
doaj   +1 more source

The Sensitivity of Nucleosynthesis in Type I X-ray Bursts to Thermonuclear Reaction-Rate Variations [PDF]

, 2008
We examine the sensitivity of nucleosynthesis in Type I X-ray bursts to variations in nuclear rates. As a large number of nuclear processes are involved in these phenomena -with the vast majority of reaction rates only determined theoretically due to the
Amthor, Angulo, Anuj Parikh, Arnould, Audi, Audi, Belian, Bildsten, Chang, Christian Iliadis, Clark, Cottam, Cumming, Fermín Moreno, Fisker, Fisker, Fisker, Fisker, Fujimoto, Grindlay, Hix, Iliadis, Iliadis, Iliadis, Izzard, Jordan, Jordi José, José, Koike, Koike, Pietsch, Rauscher, Roberts, Schatz, Schatz, Schatz, Schatz, Schury, Strohmayer, Taam, Taam, Taam, The, Thielemann, Wallace, Weinberg, Woosley, Woosley   +47 more
core   +3 more sources

Large Anomalous and Topological Hall Effect and Nernst Effect in a Dirac Kagome Magnet Fe3Ge

Advanced Functional Materials, EarlyView.
Fe3Ge, a Kagome‐lattice magnet, exhibits remarkable anomalous Hall and Nernst effects, with transverse thermoelectric conductivity surpassing or comaprable to some well‐known ferromagnets. First‐principles calculations attribute these to Berry curvature from massive Dirac gaps. Additionally, topological Hall and Nernst signals emerge from field‐induced
Chunqiang Xu, Shuvankar Gupta, Hengxin Tan, Hyeonhu Bae, Olajumoke Oluwatobiloba Emmanuel, Mingyu Xu, Yan Wu, Xiaofeng Xu, Pengpeng Zhang, Weiwei Xie, Binghai Yan, Xianglin Ke   +11 more
wiley   +1 more source

NASA needs and trends in cryogenic cooling [PDF]

, 1983
Projected NASA needs in spaceborne cryogenic systems and recent results of NASA cryogenic cooling technology efforts in infrared astronomy, X-ray astronomy, gamma ray astronomy, liquid helium and space stations are ...
Sherman, A.
core   +1 more source