33 citations · 161 across the 12 of their papers we have counts for
19 papers
High-energy magnetic excitations from heavy quasiparticles in CeCuSi
Yu Song, Weiyi Wang, Chongde Cao +8
Magnetic fluctuations is the leading candidate for pairing in cuprate, iron-based and heavy fermion superconductors. This view is challenged by the recent discovery of nodeless sup…
Spin dynamics in NaFeAs and NaFeCuAs probed by resonant inelastic X-ray scattering
Yu Song, Weiyi Wang, Eugenio Paris +11
The parent compounds of iron-based superconductors are magnetically-ordered bad metals, with superconductivity appearing near a putative magnetic quantum critical point. The presen…
Magnetic order and fluctuations in quasi-two-dimensional planar magnet Sr(CoNi)As
Yaofeng Xie, Yu Li, Zhiping Yin +9
We use neutron scattering to investigate spin excitations in Sr(CoNiAs, which has a -axis incommensurate helical structure of the two-dimensional (2D) in-pl…
Orbital-selective spin waves in detwinned NaFeAs
David W. Tam, Zhiping Yin, Yaofeng Xie +6
The existence of orbital-dependent electronic correlations has been recognized as an essential ingredient to describe the physics of iron-based superconductors. NaFeAs, a parent co…
Nature of the spin resonance mode in CeCoIn
Yu Song, Weiyi Wang, John S. Van Dyke +9
Spin-fluctuation-mediated unconventional superconductivity can emerge at the border of magnetism, featuring a superconducting order parameter that changes sign in momentum space. D…
Flat band magnetism and helical magnetic order in Ni-doped SrCoAs
Yu Li, Zhonghao Liu, Zhuang Xu +15
A series of Sr(CoNi)As single crystals was synthesized allowing a comprehensive phase diagram with respect to field, temperature, and chemical substitution to b…