First-order magnetic and structural phase transitions in Fe$_{1+y}$Se$_x$Te$_{1-x}$ (2008)
Li, Shiliang, De La Cruz, Clarina, Huang, Q., Chen, Y., Lynn, J. W., Hu, Jiangping, ...
We use bulk magnetic susceptibility, electronic specific heat, and neutron scattering to study structural and magnetic phase transitions in Fe$_{1+y}$Se% $_x$Te$_{1-x}$. Fe$_{1.068}$Te exhibits a...
Low energy spin waves and magnetic interactions in SrFe$_2$As$_2$ (2008)
Zhao, Jun, Yao, Dao-Xin, Li, Shiliang, Hong, Tao, Chen, Y., Chang, S., ...
We report inelastic neutron scattering studies of magnetic excitations in antiferromagnetically ordered SrFe$_{2}$As$_{2}$ ($T_{N}=220$ K), the parent compound of the FeAs-based superconductors. At...
Chi, Songxue, Adroja, D. T., Guidi, T., Bewley, R., Li, Shiliang, Zhao, Jun, ...
We use inelastic neutron scattering to study the crystalline electric field (CEF) excitations of Ce$^{3+}$ in CeFeAsO$_{1-x}$F$_{x}$($x=0,0.16$). For nonsuperconducting CeFeAsO, the Ce CEF levels...
Li, Shiliang, Chi, Songxue, Zhao, Jun, Stone, M. B., Lynn, J. W., ...
We use thermodynamic and neutron scattering measurements to study the effect of oxygen annealing on the superconductivity and magnetism in Pr$_{0.88}$LaCe$_{0.12}$CuO$_{4-\delta}$. Although the...
Zhao, Jun, Huang, Q., De La Cruz, Clarina, Li, Shiliang, Lynn, J. W., Chen, Y., ...
We use neutron scattering to study the structural and magnetic phase transitions in the iron pnictides CeFeAsO1-xFx as the system is tuned from a semimetal to a high-transition-temperature (high-Tc)...
A distinct bosonic mode in an electron-doped high-transition-temperature superconductor (2008)
Niestemski, F. C., Kunwar, S., Zhou, S., Li, Shiliang, Ding, H., Wang, Ziqiang, ...
Despite recent advances in understanding high-transition-temperature (high-T c) superconductors, there is no consensus on the origin of the superconducting 'glue': that is, the mediator that binds...
Quantum Spin Excitations through the metal-to-insulator crossover in $Y Ba_2 Cu_3 O_{6+y}$ (2007)
Li, Shiliang, Yamani, Zahra, Kang, Hye Jung, Segawa, Kouji, Ando, Yoichi, Yao, Xin, ...
We use inelastic neutron scattering to study the temperature dependence of the spin excitations of a detwinned superconducting YBa$_2$Cu$_3$O$_{6.45}$ ($T_c=48$ K). In contrast to earlier work on...
Wilson, Stephen D., Li, Shiliang, Zhao, Jun, Mu, Gang, Wen, Hai-hu, Lynn, Jeffrey W., ...
The quantum spin fluctuations of the S = 1/2 Cu ions are important in determining the physical properties of the high-transition temperature (high-Tc) copper oxide superconductors, but their possible...
Resonance in Optimally Electron-Doped Superconductor Nd$_{1.85}$Ce$_{0.15}$CuO$_{4-\delta}$ (2007)
Zhao, Jun, Dai, Pengcheng, Li, Shiliang, Freeman, Paul G., Onose, Y., Tokura, Y.
We use inelastic neutron scattering to probe magnetic excitations of an optimally electron-doped superconductor Nd$_{1.85}$Ce$_{0.15}$CuO$_{4-\delta}$ above and below its superconducting transition...
Shan, L., Huang, Y., Wang, Y. L., Li, Shiliang, Zhao, Jun, Dai, Pengcheng, ...
We use in-plane tunneling spectroscopy to study the temperature dependence of the local superconducting gap $\Delta(T)$ in electron-doped copper oxides with various $T_c$'s and Ce-doping...
Kang, Hye Jung, Dai, Pengcheng, Campbell, Branton J., Chupas, Peter J., Rosenkranz, Stephan, Lee, Peter L., ...
High-transition-temperature superconductivity arises in copper oxides when holes or electrons are doped into the CuO2 planes of their insulating parent compounds. While hole-doping quickly induces...
Wilson, Stephen D., Li, Shiliang, Dai, Pengcheng, Bao, Wei, Chung, Jae-Ho, Kang, H. J., ...
We use inelastic neutron scattering to explore the evolution of the low energy spin dynamics in the electron-doped cuprate Pr0.88LaCe0.12CuO4-d (PLCCO) as the system is tuned from its...
Resonance in the electron-doped high-Tc superconductor Pr0.88LaCe0.12CuO(4-delta) (2006)
Wilson, Stephen D., Dai, Pengcheng, Li, Shiliang, Chi, Songxue, Kang, H. J., Lynn, J. W.
In conventional superconductors, the interaction that pairs the electrons to form the superconducting state is mediated by lattice vibrations (phonons). In high-transition temperature (high-Tc)...
Wilson, Stephen D., Li, Shiliang, Woo, H., Dai, Pengcheng, Mook, H. A., Frost, C. D., ...
We use high-resolution inelastic neutron scattering to study the low-temperature magnetic excitations of electron-doped superconducting Pr$_{0.88}$LaCe$_{0.12}$CuO$_{4-\delta}$ ($T_c=21\pm 1$ K) over...
Spin-Charge Coupling in lightly doped Nd$_{2-x}$Ce$_{x}$CuO$_4$ (2004)
Li, Shiliang, Wilson, Stephen D., Mandrus, David, Zhao, Bairu, Onose, Y., Tokura, Y., ...
We use neutron scattering to study the influence of a magnetic field on spin structures of Nd$_2$CuO$_4$. On cooling from room temperature, Nd$_2$CuO$_4$ goes through a series of antiferromagnetic...
Wilson, Stephen D., Li, Shiliang, Zhao, Jun, Mu, Gang, Wen, Hai-Hu, Lynn, Jeffrey W., ...
The quantum spin fluctuations of the S = 1/2 Cu ions are important in determining the physical properties of high-transition-temperature (high Tc) copper oxide superconductors, but their possible...