Results 61 to 70 of about 63,656 (239)

Handed Magnon Propagation in Easy‐Axis Antiferromagnetic α‐Fe2O3

Advanced Materials, EarlyView.
Coherent excitation and detection of handed magnons are achieved in the easy‐axis antiferromagnet α‐Fe2O3. An external magnetic field lifts the degeneracy between left‐ and right‐handed magnons without affecting their propagation velocity. The Dzyaloshinskii–Moriya interaction and anisotropy modulate their amplitude and damping, enabling intrinsic ...
Chang Xu, Hanbum Park, Chenhui Zhang, Hyunsoo Yang   +3 more
wiley   +1 more source

Intrinsic Localized Modes Observed in the High Temperature Vibrational Spectrum of NaI

, 2009
Inelastic neutron measurements of the high-temperature lattice excitations in NaI show that in thermal equilibrium at 555 K an intrinsic mode, localized in three dimensions, occurs at a single frequency near the center of the spectral phonon gap ...
A. Alatas, A. J. Sievers, A. Llobet, D. B. Sirdeshmukh, G. L. Squires, G. Shirane, J. W. Lynn, M. E. Manley, N. I. Agladze, S. A. Kiselev, S. Flach, Y. Chen   +11 more
core   +1 more source

Quasielastic Neutron Scattering Reveals Anisotropic Water Transport in Smectite Thin Film

Advanced Materials Interfaces, EarlyView.
Clay minerals, vital in advanced technologies, exhibit tunable interfacial properties. Quasielastic neutron scattering is used on oriented beidellite films to study charge‐induced anisotropy. Results reveal anisotropic water dynamics and orientation‐dependent diffusion.
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
wiley   +1 more source

Inelastic neutron scattering applied to the investigation of collective excitations in topologically disordered matter

Condensed Matter Physics, 2008
Inelastic neutron scattering techniques are introduced here as one of the most important experimental techniques in the investigation of collective excitations in fluids (liquids and compressed gases) and amorphous solids.
J.-B.Suck
doaj   +1 more source

Dynamics of cubic-tetragonal phase transition in KNbO$_3$ perovskite

, 2004
The low-energy part of the vibration spectrum in KNbO$_3$ was studied by cold neutron inelastic scattering in the cubic phase. In addition to acoustic phonons, we observe strong diffuse scattering, which consists of two components. The first one is quasi-
A. A. Maradudin, A. C. Nunes, A. Choubey, A. D. Bruce, B. Fåk, B. Roessli, G. A. Smolenskii, G. J. Coombs, G. Shirane, M. D. Fontana, M. E. Lines, M. Holma, M. Popovichi, P. Günter, R. A. Cowley, R. Comes, R. K. Wehner, S. G. Lushnikov, S. N. Gvasaliya, S. Triebwasser, V. K. Yanovskii   +20 more
core   +1 more source

Nano‐Scale Phonon Dynamics in GaN: Fundamentals and Strategies for Thermal Transport Modulation

Advanced Electronic Materials, EarlyView.
Xx xx. ABSTRACT With the rapid advancement of electronic technologies, the effective thermal management in gallium nitride (GaN) ‐based devices has emerged as a critical challenge, particularly as device dimensions shrink to scales comparable to phonon mean free paths.
Tiantian Luan, Liwen Sang, Ziling Cai, Yutao Fang, Yabing Li, Rui Yin, Jianlu Wang, Bo Shen   +7 more
wiley   +1 more source

Flash Synthesis of High‐Performance Sub‐Micron Low‐Disorder LiNixCoyAlzO2 Cathode Single Crystals

Advanced Energy and Sustainability Research, EarlyView.
A novel and scalable Flash‐Heat and Quench methodology has been developed to synthesize high‐performance LiNi0.8Co0.15Al0.05O2 single crystal cathodes in just minutes versus conventional methods that take multiple hours. X‐ray powder diffraction, neutron powder diffraction, and pair‐distribution and X‐ray absorption spectroscopy have shown low paired ...
Thomas E. Ashton, Shutao Wang, Michael J. Johnson, Callum Chisnall, Matthew G. Tucker, Helen Playford, Alexander J. E. Rettie, Jiacheng Wang, Yang Xu, Jawwad A. Darr   +9 more
wiley   +1 more source

Neutron spin echo spectroscopy with a moving sample

Scientific Reports, 2023
Neutron spin echo spectroscopy is a high resolution inelastic neutron scattering method probing nanosecond dynamics. It is well suited to study the atomistic motion in polymer systems and contributes to our understanding of viscoelasticity.
Manuchar Gvaramia, Philipp Gutfreund, Peter Falus, Antonio Faraone, Michihiro Nagao, Max Wolff   +5 more
doaj   +1 more source

Folding model analysis of proton scattering from $^{18,20,22}$O nuclei

, 2006
The elastic and inelastic proton scattering on $^{18,20,22}$O nuclei are studied in a folding model formalism of nucleon-nucleus optical potential and inelastic form factor.
Amos, Basu, Becheva, Bertsch, Chaudhuri, D. Gupta, E. Khan, Escudie, Gupta, Gupta, Gupta, Jewell, Khan, Khan, Khan, Khoa, Khoa, Kobos, Petrovich, Raman, Rebel, Sakurai, Satchler, Tarasov, Thirolf, Y. Blumenfeld   +25 more
core   +3 more sources

TANGRA – an experimental setup for basic and applied nuclear research by means of 14.1 MeV neutrons

EPJ Web of Conferences, 2017
For investigation of the basic characteristics of 14.1 MeV neutron induced nuclear reactions on a number of important isotopes for nuclear science and engineering, a new experimental setup TANGRA has been constructed at the Frank Laboratory of Neutron ...
Ruskov Ivan, Kopatch Yury, Bystritsky Vyacheslav, Skoy Vadim, Shvetsov Valery, Hambsch Franz-Josef, Oberstedt Stephan, Noy Roberto Capote, Grozdanov Dimitar, Zontikov Artem, Rogov Yury, Zamyatin Nikolay, Sapozhnikov Mikhail, Slepnev Vyacheslav, Bogolyubov Evgeny, Sadovsky Andrey, Barmakov Yury, Ryzhkov Valentin, Yurkov Dimitry, Valković Vladivoj, Obhođaš Jasmina, Aliyev Fuad   +21 more
doaj   +1 more source