Zobrazeno 1 - 10
of 1 212
pro vyhledávání: '"Wu, S. F."'
Autor:
Zhou, X. Y., Zhang, S. J., Wu, D., Wang, H., Li, B. H., Wu, S. F., Liu, Q. M., Hu, T. C., Li, R. S., Yuan, J. Y., Xu, S. X., Wu, Q., Yue, L., Dong, T., Wang, N. L.
Near-infrared (NIR) pump-terahertz (THz) probe spectroscopy is used to investigate the charge and spin exciations in a strongly correlated electron compound Na0.5CoO2. This compound exhibits a coexistence of various charge and spin orders arising fro
Externí odkaz:
http://arxiv.org/abs/2404.09185
Autor:
Frachet, M., Benhabib, S., Vinograd, I., Wu, S. -F., Vignolle, B., Mayaffre, H., Krämer, S., Kurosawa, T., Momono, N., Oda, M., Chang, J., Proust, C., Julien, M. -H., LeBoeuf, D.
Publikováno v:
Phys. Rev. B 103, 115133 (2021)
High-$T_{\rm{c}}$ cuprate superconductors host spin, charge and lattice instabilities. In particular, in the antiferromagnetic glass phase, over a large doping range, lanthanum based cuprates display a glass-like spin freezing with antiferromagnetic
Externí odkaz:
http://arxiv.org/abs/2011.00562
Publikováno v:
Phys. Rev. Research 2, 013373 (2020)
We study Fe$_{1+y}$Te$_{0.6}$Se$_{0.4}$ multi-band superconductor with $T_c=14$K by polarization-resolved Raman spectroscopy. Deep in the superconducting state, we detect pair-breaking excitation at 45cm$^{-1}$ ($2\Delta=5.6$meV) in the $XY$($B_{2g}$
Externí odkaz:
http://arxiv.org/abs/1911.07270
Autor:
Miao, H., Brito, W. H., Yin, Z. P., Zhong, R. D., Gu, G. D., Johnson, P. D., Dean, M. P. M., Choi, S., Kotliar, G., Ku, W., Wang, X. C., Jin, C. Q., Wu, S. -F., Qian, T., Ding, H.
Publikováno v:
Phys. Rev. B 98, 020502 (2018)
Here we use angle-resolved photoemission spectroscopy to study superconductivity that emerges in two extreme cases, from a Fermi liquid phase (LiFeAs) and an incoherent bad-metal phase (FeTe0.55Se0.45). We find that although the electronic coherence
Externí odkaz:
http://arxiv.org/abs/1804.07601
Autor:
Wu, S. -F., Zhang, W. -L., Li, L., Cao, H. B., Kung, H. -H., Sefat, A. S., Ding, H., Richard, P., Blumberg, G.
We employ polarization-resolved Raman spectroscopy to study critical nematic fluctuations in Ba(Fe$_{1-x}$Au$_x$)$_2$As$_2$ superconductors above and across well separated tetragonal to orthorhombic phase transition at temperature $T_S(x)$ and the N\
Externí odkaz:
http://arxiv.org/abs/1712.06066
Autor:
Wu, S. -F., Zhang, W. -L., Li, L., Cao, H. -B., Kung, H. -H., Sefat, A. S., Ding, H., Richard, P., Blumberg, G.
Publikováno v:
Phys. Rev. B 102, 014501 (2020)
We used polarization-resolved Raman scattering to study magneto-elastic coupling in Ba(Fe$_{1-x}$Au$_{x}$)$_2$As$_2$ crystals as a function of light Au-doping, materials for which temperatures of the structural transition ($T_S$) and of the magnetic
Externí odkaz:
http://arxiv.org/abs/1712.01903
Autor:
Wu, S. -F., Zhang, W. -L., Thorsmølle, V. K., Chen, G. F., Tan, G. T., Dai, P. C., Shi, Y. G., Jin, C. Q., Shibauchi, T., Kasahara, S., Matsuda, Y., Sefat, A. S., Ding, H., Richard, P., Blumberg, G.
Publikováno v:
Phys. Rev. Research 2, 033140 (2020)
We used polarization-resolved Raman scattering to study the magneto-elastic coupling in the parent compounds of several families of Fe-based superconductors (BaFe2As2, EuFe2As2, NaFeAs, LiFeAs, FeSe and LaFeAsO). We observe an emergent Ag-symmetry As
Externí odkaz:
http://arxiv.org/abs/1712.01896
Publikováno v:
Proceedings of the National Academy of Sciences May 2021, 118 (20) e2020585118
We use polarization-resolved electronic Raman spectroscopy to study charge dynamics in non-magnetic FeSe$_{1-x}$S$_x$ superconductor. We observe two features of the $XY$ quadrupole symmetry: a low-energy quasi-elastic peak (QEP) and an electronic con
Externí odkaz:
http://arxiv.org/abs/1710.09892
Autor:
Zhang, W. -L., Richard, P., van Roekeghem, A., Nie, S. -M., Xu, N., Zhang, P., Miao, H., Wu, S. -F., Yin, J. -X., Fu, B. B., Kong, L. -Y., Qian, T., Wang, Z. -J., Fang, Z., Sefat, A. S., Biermann, S., Ding, H.
Publikováno v:
Phys. Rev. B 94, 155155 (2016)
We performed an angle-resolved photoemission spectroscopy study of BaMn$_2$As$_2$ and BaMn$_2$Sb$_2$, which are isostructural to the parent compound BaFe$_2$As$_2$ of the 122 family of ferropnictide superconductors. We show the existence of a strongl
Externí odkaz:
http://arxiv.org/abs/1608.06110
Autor:
Wu, S. -F., Richard, P., Ding, H., Wen, H. -H., Tan, Guotai, Wang, Meng, Zhang, Chenglin, Dai, Pengcheng, Blumberg, G.
Publikováno v:
Phys. Rev. B 95, 085125 (2017)
Using polarization-resolved electronic Raman scattering we study under-doped, optimally-doped and over-doped Ba$_{1-x}$K$_{x}$Fe$_2$As$_2$ samples in the normal and superconducting states. We show that low-energy nematic fluctuations are universal fo
Externí odkaz:
http://arxiv.org/abs/1608.06064