Results 11 to 20 of about 2,460 (214)

Quasielastic neutron scattering experiment on water using TOFLAR (Time Of Flight and LARmor precession) technique at SNS [PDF]

EPJ Web of Conferences, 2015
We present the results of the first TOFLAR (Time Of Flight and LARmor precession) experiment with a Larmor modulation device positioned after the sample. Using a setup based on the configuration of the SNS-NSE spectrometer (Spallation Neutron Source, USA)
Kusmin A., van Eijck L., Pappas C., Zolnierczuk P.A., Arend N., Ohl M., van Well A.A.   +6 more
doaj   +2 more sources

Quasielastic neutron scattering study of POSS ligand dynamics [PDF]

EPJ Web of Conferences, 2015
Polyoligosilsesquioxanes are molecules having cage-like structures composed of silicon and oxygen. These molecules can have a wide variety of functional ligands attached to them.
Jalarvo Niina, Tyagi Madhusudan, Crawford Michael K.   +2 more
doaj   +4 more sources

Dynamics studied by Quasielastic Neutron Scattering (QENS) [PDF]

Adsorption, 2021
AbstractQuasielastic neutron scattering (QENS) allows measurement of the molecular displacements in time and space, from pico- to tens of nanoseconds and from Ångstroms to nanometers, respectively. The method probes dynamics from fast vibrational modes down to slow diffusive motion.
Kruteva, Margarita
openaire   +4 more sources

A note on quasielastic neutron scattering [PDF]

Journal de Physique I, 1994
We present a theorem that in coherent quasielastic neutron scattering on a confined and limited system of identical particles only the configuration-configuration correlations have to be examined without any hindsight on the distribution of the particles inside the configuration.
G. Coddens
openaire   +3 more sources

Quasielastic Neutron Scattering Reveals Anisotropic Water Transport in Smectite Thin Film

Advanced Materials Interfaces
Clay minerals exhibit complex interactions with water that critically influence their functional properties, yet the anisotropic nature of water dynamics in smectite thin films remains underexplored.
Yiran Jin, Kristoffer Vorm, Will P. Gates, Félix J. Villacorta, Hery Mitsutake, Seiko Ohira‐Kawamura, Takeshi Yamada, Yukinobu Kawakita, Charalampos Tsekeridis, José E. M. Pereira, Masatoshi Arai, Heloisa N. Bordallo   +11 more
doaj   +2 more sources

Hydration‐ and Temperature‐Dependent Rotational Dynamics and Water Diffusion in Nanocellulose

Small Structures
Nanocellulose is a promising alternative to fossil‐derived materials, but its development is hindered by a limited understanding of cellulose–water interactions.
Agnes Åhl, Aleksander Jaworski, Elisabetta Nocerino, Matilda Andersson, Mika H. Sipponen, Fanni Juranyi, Lennart Bergström   +6 more
doaj   +2 more sources

Accurate simulations of magnetic excitations in the neutron simulation package <i>McStas</i>. [PDF]

J Appl Crystallogr
We present an accurate algorithm for simulating neutron scattering from spin waves in the ray‐tracing package McStas.An algorithm for the accurate simulation of neutron scattering from magnetic excitations has been developed and implemented as new component for the neutron ray‐tracing software McStas.
Schack SB, Krighaar KML, Lenander EY, Lefmann K.   +3 more
europepmc   +2 more sources

Dynamics of immobilized and native Escherichia coli dihydrofolate reductase by quasielastic neutron scattering. [PDF]

Biophys J, 2006
The internal dynamics of native and immobilized Escherichia coli dihydrofolate reductase (DHFR) have been examined using incoherent quasielastic neutron scattering.
Tehei M, Smith JC, Monk C, Ollivier J, Oettl M, Kurkal V, Finney JL, Daniel RM.   +7 more
europepmc   +2 more sources

Comparison of time-of-flight and MIEZE neutron spectroscopy of H₂O. [PDF]

J Appl Crystallogr
We report a comparison of modulation of intensity with zero effort (MIEZE), a neutron spin–echo technique, and neutron time‐of‐flight spectroscopy, a conventional neutron scattering method. The basis of this comparison is provided by measurements performed on pure water under the same measurement conditions.We report a comparison of modulation of ...
Beddrich L, Jochum JK, Bender P, Spitz L, Wendl A, Franz C, Busch S, Juranyi F, Pfleiderer C, Soltwedel O.   +9 more
europepmc   +2 more sources

Effect of Halide Variations on Cation Dynamics in MAPbX₃ (X = Cl, Br, and I). [PDF]

Small
This study uncovers the pivotal role of halide composition in dictating MA cation dynamics in MAPbX3 (X = Cl, Br, and I). MAPbCl3 exhibits the earliest and broadest onset of threefold MA rotation with the lowest activation energy, driven by pronounced octahedral distortions and reduced steric hindrance from the smaller Cl⁻ ion.
Sharma VK, Mohanty A, Sakai VG, Tyagi M, Sarma DD.   +4 more
europepmc   +2 more sources