Results 101 to 110 of about 24,867 (278)

Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons

Advanced Materials, EarlyView.
Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner, Enis Oğuzhan Eren, Elif Begüm Yılmaz, Jiyong Kim, Ernesto Scoppola, Alexandros Vasileiadis, Nadezda V. Tarakina, Markus Antonietti, Paolo Giusto, Evgeny Senokos   +9 more
wiley   +1 more source

The Discrete Noise of Magnons

, 2018
Magnonics is a rapidly developing subfield of spintronics, which deals with devices and circuits that utilize spin currents carried by magnons - quanta of spin waves. Magnon current, i.e.
Balandin, A. A., Balinskiy, M., Kargar, F., Khitun, A., Rumyantsev, S.   +4 more
core   +1 more source

Characterization of stimulated Brillouin scattering in a circular-core two-mode fiber using optical time-domain analysis

Optics Express, 2013
We show characterization of stimulated Brillouin scattering (SBS) in a circular-core two-mode fiber (c-TMF) using Brillouin optical time-domain analysis (BOTDA) with a pulsed pump and a counterpropagating continuous wave probe. By using two free-space mode combiners (FSMCs), we can launch any combination of spatial modes into both ends of the c-TMF ...
An, Li, Qian, Hu, William, Shieh
openaire   +2 more sources

Electron Channeling Contrast Imaging of Ferroelastic Domains

Advanced Materials, EarlyView.
A simple scanning electron microscopy technique, electron channeling contrast imaging, unveils nanoscale ferroelastic domains and their coupling to functional properties in oxide heterostructures. The work demonstrates high‐resolution mapping of both surface and buried domains, broadening the experimental toolbox for ferroic and quantum oxide systems ...
Wei Peng, Aditya Singh, M. Haroon Qaiser, Philipp Fahler‐Muenzer, Freya Watson, Liang Si, Yining Xie, Katarzyna E. Sopińska, Daniel A. Chaney, Ana M. Sanchez, T. Ben Britton, Richard Beanland, Marios Hadjimichael, Marin Alexe   +13 more
wiley   +1 more source

Atomically Resolved Acoustic Dynamics Coupled with Magnetic Order in a Van der Waals Antiferromagnet

Advanced Materials, EarlyView.
Magnetically coupled acoustic phonon modes (f1, f2, f3) are captured by ultrafast X‐ray diffraction in a prototypical van der Waals antiferromagnet FePS3, including their atomic displacement vectors (u) and the acoustic propagation wave vectors (k). Notably, the atomic displacement vector and amplitude of these modes, represented by the direction and ...
Faran Zhou, Kyle Hwangbo, Sung Soo Ha, Xiao‐Wei Zhang, Sae Hwan Chun, Jaeku Park, Intae Eom, Qianni Jiang, Zekai Yang, Marc Zajac, Sungwon Kim, Sungwook Choi, Zhaodong Chu, Kyoung Hun Oh, Yifan Su, Alfred Zong, Elton J. G. Santos, Ting Cao, Jiun‐Haw Chu, Stephan O. Hruszkewycz, Nuh Gedik, Di Xiao, Hyunjung Kim, Xiaodong Xu, Haidan Wen   +24 more
wiley   +1 more source

Designing Defect Structure and Interfacial Strain in an Epitaxial VN Bilayer Film by Tailoring N Concentration

Advanced Materials Interfaces, EarlyView.
The N concentration in an epitaxial VN bilayer is tailored from overstoichiometric V0.49N0.51 to understoichiometric V0.56N0.44. Based on ab initio, diffraction, and microscopy data, the overstoichiometric V0.49N0.51 layer contains V vacancies, N Frenkel pairs, and a high density of dislocations.
Marcus Hans, Damian M. Holzapfel, Zhuo Chen, Soheil Karimi Aghda, Michal Fečík, Daniel Primetzhofer, Zaoli Zhang, Jochen M. Schneider   +7 more
wiley   +1 more source

Influence of Pump Light on LP₀₁ and LP₁₁ Modes in Few-Mode Fiber Brillouin Optical Time Domain Reflectometry

Photonics
The quality of pump pulse in few-mode-fiber Brillouin optical time domain reflectometry (FMF-BOTDR) is vital for the spontaneous Brillouin scattering of modes LP01 and LP11 because it is the comprehensive effect of the main laser linewidth and pulse ...
Yunqi Hao, Yiliang Han, Weitong Liao, Miao Miao, Kun Yang   +4 more
doaj   +1 more source

Time-domain Brillouin scattering for evaluation of materials interface inclination: Application to photoacoustic imaging of crystal destruction upon non-hydrostatic compression. [PDF]

Photoacoustics, 2023
Sandeep S, Raetz S, Chigarev N, Pajusco N, Thréard T, Edely M, Bulou A, Zerr A, Gusev VE.   +8 more
europepmc   +1 more source

Unveiling Ultrafast Spin‐Valley Dynamics and Phonon‐Mediated Charge Transfer in MoSe2/WSe2 Heterostructures

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This study reveals the potential to manipulate spin‐valley polarization dynamics in MoSe2/WSe2 heterostructures by quantifying different scattering processes following selective photoexcitation. The results show that these heterostructures enable ultrafast valley‐selective charge transfer, with phonon scattering playing a significant role in the ...
Julian Wagner, Robin Bernhardt, Lukas Rieland, Omar Abdul‐Aziz, Qiuyang Li, Xiaoyang Zhu, Stefano Dal Conte, Giulio Cerullo, Paul H. M. van Loosdrecht, Hamoon Hedayat   +9 more
wiley   +1 more source

Discrimination of Temperature and Strain in Brillouin Optical Time Domain Analysis Using a Multicore Optical Fiber

Sensors, 2018
Brillouin optical time domain analysis is the sensing of temperature and strain changes along an optical fiber by measuring the frequency shift changes of Brillouin backscattering.
Mohamed A. S. Zaghloul, Mohan Wang, Giovanni Milione, Ming-Jun Li, Shenping Li, Yue-Kai Huang, Ting Wang, Kevin P. Chen   +7 more
doaj   +1 more source