Zobrazeno 1 - 10
of 3 995
pro vyhledávání: '"Wéber, F."'
We demonstrate the coherent optical control of magnetization precession in a thin Ni film by a second excitation pulse which amplifies or attenuates the precession induced by a first pulse depending on the fluences of the pump-pulses and the pump-pum
Externí odkaz:
http://arxiv.org/abs/2311.04803
Autor:
Sen, K., Heid, R., Souliou, S. M., Boll, D., Bosak, A., Sung, N. H., Bertinshaw, J., Gretarsson, H., Kim, B. J., Weber, F., Tacon, M. Le
Publikováno v:
Phys. Rev. B 105, 045142 (2022)
Following previous works reporting an anomalous behavior of several zone-center optical phonons across the magnetic transition of square lattice iridates Sr2IrO4 and Sr3Ir2O7, we have investigated the lattice dynamics as a function of momentum in the
Externí odkaz:
http://arxiv.org/abs/2111.04081
Autor:
Farrell, D., Alp, A., Spinella, W., Weber, F., Malfatti, G., Orsaria, M. G., Ranea-Sandoval, I. F.
In this chapter, we investigate the structure and composition of hot neutron star matter and proto-neutron stars. Such objects are made of baryonic matter that is several times denser than atomic nuclei and tens of thousands times hotter than the mat
Externí odkaz:
http://arxiv.org/abs/2110.05189
Autor:
Li, Z. H., Hudry, D., Heid, R., Said, A. H., Le, M. D., Popescu, R., Gerthsen, D., Merz, M., Krämer, K. W., Busko, D., Howard, I. A., Richards, B. S., Weber, F.
Publikováno v:
Physical Review B 102, 165409 (2020)
We report a combined inelastic neutron and X-ray scattering study of the phonon density of states of the nano- and microcrystalline lanthanide-based materials NaY$_{0.8}$Yb$_{0.18}$Er$_{0.02}$F$_4$ and NaGd$_{0.8}$Yb$_{0.18}$Er$_{0.02}$F$_4$. While l
Externí odkaz:
http://arxiv.org/abs/2012.01056
Publikováno v:
Physical Review B 102, 144526 (2020)
We report inelastic x-ray scattering measurements of the in-plane polarized transverse acoustic phonon mode propagating along $q\parallel$[100] in various hole-doped compounds belonging to the 122 family of iron-based superconductors. The slope of th
Externí odkaz:
http://arxiv.org/abs/2012.01051
Publikováno v:
Phys. Rev. Lett. 125, 187001 (2020)
We study the elastoresistance of the highly correlated material CsFe2As2 in all symmetry channels. Neutralizing its thermal expansion by means of a piezoelectric-based strain cell is demonstrated to be essential. The elastoresistance response in the
Externí odkaz:
http://arxiv.org/abs/2005.13838
Autor:
Merritt, A. M., Weber, F., Castellan, J. -P., Wolf, Th., Ishikawa, D., Said, A. H., Alatas, A., Fernandes, R. M., Baron, A. Q. R., Reznik, D.
Publikováno v:
Phys. Rev. Lett. 124, 157001 (2020)
Nematicity is ubiquitous in electronic phases of high-$T_c$ superconductors, particularly in the Fe-based systems. We used inelastic x-ray scattering to extract the temperature-dependent nematic correlation length $\xi$ from the anomalous softening o
Externí odkaz:
http://arxiv.org/abs/2001.01343
Autor:
Weber, F., Farrell, D., Spinella, W. M., Malfatti, G., Orsaria, M. G., Contrera, G. A., Maloney, I.
In the first part of this paper, we investigate the possible existence of a structured hadron-quark mixed phase in the cores of neutron stars. This phase, referred to as the hadron-quark pasta phase, consists of spherical blob, rod, and slab rare pha
Externí odkaz:
http://arxiv.org/abs/1907.06591
In part one of this paper, we use a non-local extension of the 3-flavor Polyakov-Nambu-Jona-Lasinio model, which takes into account flavor-mixing, momentum dependent quark masses, and vector interactions among quarks, to investigate the possible exis
Externí odkaz:
http://arxiv.org/abs/1907.06597