Zobrazeno 1 - 10
of 126
pro vyhledávání: '"said, Ayman H."'
Autor:
Marino, Andrea, Sundermann, Martin, Christovam, Denise S., Amorese, Andrea, Chang, Chun-Fu, Dolmantas, Paulius, Said, Ayman H., Grrtarsson, Hlynur, Keimer, Bernhard, Haverkort, Maurits W., Andreev, Alexander V., Havela, Ladilav, Thalmeier, Peter, Tjeng, Liu Hao, Severing, Andrea
Publikováno v:
Phys. Rev. B 108, 045142 (2023)
Using high resolution tender-x-ray resonant inelastic scattering and hard-x-ray non-resonant inelastic scattering beyond the dipole limit we were able to detect electronic excitations in intermetallic UGa$_2$ that are highly atomic in nature. Analysi
Externí odkaz:
http://arxiv.org/abs/2307.15100
Autor:
Shen, Xingchen, Heid, Rolf, Hott, Roland, Salzmann, Björn, Cantarino, Marli dos Reis, Monney, Claude, Said, Ayman H., Murphy, Bridget, Rossnagel, Kai, Rosenkranz, Stephan, Weber, Frank
Publikováno v:
Nature Communications 2023 Vol. 14 Issue 1 Pages 7282
Research on charge-density-wave (CDW) ordered transition-metal dichalcogenides continues to unravel new states of quantum matter correlated to the intertwined lattice and electronic degrees of freedom. Here, we report an inelastic x-ray scattering in
Externí odkaz:
http://arxiv.org/abs/2207.11298
Autor:
Lebert, Blair W., Kim, Subin, Prishchenko, Danil A., Tsirlin, Alexander A., Said, Ayman H., Alatas, Ahmet, Kim, Young-June
Acoustic phonons have recently been posited as playing an integral role in explaining the half-quantized thermal Hall effect in $\alpha$-RuCl$_3$. Therefore, we present much needed inelastic x-ray scattering measurements of its acoustic phonon disper
Externí odkaz:
http://arxiv.org/abs/2201.09959
Autor:
Cai, Qingan, Hellman, Olle, Wei, Bin, Sun, Qiyang, Said, Ayman H., Gog, Thomas, Winn, Barry, Li, Chen
Phonon chirality has attracted intensive attention since it breaks the traditional cognition that phonons are linear propagating bosons. This new quasiparticle property has been extensively studied theoretically and experimentally. However, character
Externí odkaz:
http://arxiv.org/abs/2108.06631
Publikováno v:
MTPHYS 100599 2021
In two-dimensional materials, structure difference induces the difference in phonon dispersions, leading to the anisotropy of in-plane thermal transport. Here, we report an exceptional case in layered PdSe2, where the bonding, force constants, and la
Externí odkaz:
http://arxiv.org/abs/2107.07959
Autor:
Wei, Bin, Cai, Qingan, Sun, Qiyang, Su, Yaokun, Said, Ayman H., Abernathy, Douglas L., Hong, Jiawang, Li, Chen
Publikováno v:
COMMUNICATIONS PHYSICS 2021
Understanding lattice dynamics is crucial for effective thermal management in high-power electronic devices because phonons dominate thermal transport in most semiconductors. This study utilizes complementary inelastic X-ray and neutron scattering te
Externí odkaz:
http://arxiv.org/abs/2106.10922
Autor:
Ruiz, Alejandro, Breznay, Nicholas P., Li, Mengqun, Rousochatzakis, Ioannis, Allen, Anthony, Zinda, Isaac, Nagarajan, Vikram, Lopez, Gilbert, Upton, Mary H., Kim, Jungho, Said, Ayman H., Huang, Xian-Rong, Gog, Thomas, Casa, Diego, Birgeneau, Robert J., Koralek, Jake D., Analytis, James G., Perkins, Natalia B., Frano, Alex
Publikováno v:
Phys. Rev. B 103, 184404 (2021)
The family of edge-sharing tri-coordinated iridates and ruthenates has emerged in recent years as a major platform for Kitaev spin liquid physics, where spins fractionalize into emergent magnetic fluxes and Majorana fermions with Dirac-like dispersio
Externí odkaz:
http://arxiv.org/abs/2102.02714
Autor:
Wu, Shan, Song, Yu, He, Yu, Frano, Alex, Yi, Ming, Chen, Xiang, Uchiyama, Hiroshi, Alatas, Ahmet, Said, Ayman H., Wang, Liran, Wolf, Thomas, Meingast, Christoph, Birgeneau, Robert J.
Publikováno v:
Phys. Rev. Lett. 126, 107001 (2021)
Interactions between nematic fluctuations, magnetic order and superconductivity are central to the physics of iron-based superconductors. Here we report on in-plane transverse acoustic phonons in hole-doped Sr$_{1-x}$Na$_x$Fe$_2$As$_2$ measured via i
Externí odkaz:
http://arxiv.org/abs/2011.12444
Autor:
Christianson, Andrew D., Fanelli, Victor R., Lindsay, Lucas, Mu, Sai, Rahn, Marein C., Mazzone, Daniel G., Said, Ayman H., Ronning, Filip, Bauer, Eric D., Lawrence, Jon M.
The intermediate valence (IV) compound YbAl$_3$ exhibits nonintegral valence (Yb 4$f^{14-n_f}$ (5d6s)$^z$ where z = 2+n$_f$ = 2.75) in a moderately heavy (m* = 20-30me) ground state with a large Kondo temperature (T$_K$ ~ 500-600K). We have measured
Externí odkaz:
http://arxiv.org/abs/2007.01373
Autor:
Shi, Chenyang, Beecher, Alexander N., Li, Yan, Owen, Jonathan S., Leu, Bogdan M., Said, Ayman H., Hu, Michael Y., Billinge, Simon J. L.
Publikováno v:
Phys. Rev. Lett. 122, 026101 (2019)
Material properties depend sensitively on the atomic arrangements and atomic bonding, but these are notoriously difficult to measure in nanosized atomic clusters due to the small size of the objects and the challenge of obtaining bulk samples of iden
Externí odkaz:
http://arxiv.org/abs/1810.08883