Results 111 to 120 of about 10,278 (249)

3D-printed sheet jet for stable megahertz liquid sample delivery at X-ray free-electron lasers. [PDF]

IUCrJ, 2023
Konold PE, You T, Bielecki J, Valerio J, Kloos M, Westphal D, Bellisario A, Varma Yenupuri T, Wollter A, Koliyadu JCP, Koua FHM, Letrun R, Round A, Sato T, Mészáros P, Monrroy L, Mutisya J, Bódizs S, Larkiala T, Nimmrich A, Alvarez R, Adams P, Bean R, Ekeberg T, Kirian RA, Martin AV, Westenhoff S, Maia FRNC.   +27 more
europepmc   +1 more source

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

Advanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri, Oliver Paull, Ralph Bulanadi, Yasuhiro Sakamoto, Shintaro Yasui, Mikayla Lord, Mahak Chhabra, David Walker, Patrycja Paruch, Shery Chang, Nagarajan Valanoor, Daniel Sando   +11 more
wiley   +1 more source

Hard X-ray Fourier transform holography at free electron lasers source

Scientific Reports
We report on the feasibility of Fourier transform holography in the hard X-ray regime using a Free Electron Laser source. Our study shows successful single and multi-pulse holographic reconstructions of the nanostructures. We observe beam-induced heating
Wojciech Roseker, Rustam Rysov, Wonhyuk Jo, Taito Osaka, André Philippi-Kobs, Leonard Müller, Matthias Riepp, Michael Walther, Alexey Zozulya, Lars Bocklage, Felix Lehmkühler, Fabian Westermeier, Daniel Weschke, Michael Sprung, Ichiro Inoue, Makina Yabashi, Gerhard Grübel   +16 more
doaj   +1 more source

Undulator commissioning by characterization of radiation in x-ray free electron lasers

Physical Review Special Topics. Accelerators and Beams, 2012
In x-ray free electron lasers (XFELs) where a long undulator composed of many segments is installed, there exist a number of error sources to reduce the FEL gain such as the trajectory error, K value discrepancy, and phase mismatch, which are related to ...
Takashi Tanaka, Shunji Goto, Toru Hara, Takaki Hatsui, Haruhiko Ohashi, Kazuaki Togawa, Makina Yabashi, Hitoshi Tanaka   +7 more
doaj   +1 more source

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

Unlocking Exceptional Strengthening in Aluminum Alloys via Interstitial Cottrell Atmosphere Formation

Advanced Functional Materials, EarlyView.
Cyclic unloading‐aging‐reloading micro‐tensile tests under various aging durations and temperatures, combined with comprehensive microstructural characterization reveal that the yield point phenomenon in Aluminum‐Carbon (Al‐C) thin films originates from Cottrell atmosphere formation.
Zion Lee, Hojang Kim, Yixuan Hu, Injong Oh, Tae‐Hyeok Kang, Hyeonbeen Noh, Yuhyun Park, Sunkun Choi, Pyuck‐Pa Choi, Kolan Madhav Reddy, Gi‐Dong Sim   +10 more
wiley   +1 more source

A sensitive high repetition rate arrival time monitor for X-ray free electron lasers. [PDF]

Nat Commun, 2023
Diez M, Kirchberg H, Galler A, Schulz S, Biednov M, Bömer C, Choi TK, Rodriguez-Fernandez A, Gawelda W, Khakhulin D, Kubicek K, Lima F, Otte F, Zalden P, Coffee R, Thorwart M, Bressler C.   +16 more
europepmc   +1 more source

Magnetic‐Field Control of Surface States in CoFe2O4 Thin Films for Nitrate Electroreduction to Ammonia

Advanced Functional Materials, EarlyView.
Magnetic‐field‐assisted CVD of heterometallic single‐source precursors modulates thin‐film surface electronic structure and interfacial charge transfer. Field‐grown (Cobalt ferrite‐1T)CF‐1T films exhibit stabilized electronic states, lower kinetic barriers, and markedly enhanced nitrate‐to‐ammonia electrocatalysis versus (Cobalt ferrite‐0T) CF‐0T ...
Touraj Karimpour, Younes Mousazade, Simon Diel, Shilendra Kumar Sharma, Tisita Das, Nathália C. Verissimo, Thomas Fischer, Ziyaad Aytuna, Andreas Lichtenberg, Sudip Chakraborty, Marcel Risch, Sanjay Mathur   +11 more
wiley   +1 more source

The structure of tick-borne encephalitis virus determined at X-ray free-electron lasers. Simulations. [PDF]

J Synchrotron Radiat, 2023
Assalauova D, Vartanyants IA.
europepmc   +1 more source

Tutorial on X-Ray Free-Electron Lasers

IEEE Transactions on Plasma Science, 2018
This paper provides a tutorial on X-ray free-electron lasers (XFELs) which are currently being designed, built, commissioned, and operated as fourth-generation light sources to enable discovery science in materials science, biology, and chemistry. XFELs are complex devices, driven by high-energy, high-brightness electron accelerators and cost on the ...
openaire   +1 more source