300 citations · 3.1k across the 50 of their papers we have counts for
19 papers · 1 filter
Electron-phonon coupling and superconductivity in the doped topological-crystalline insulator (PbSn)InTe
A. Sapkota, Y. Li, B. L. Winn +12
We present a neutron scattering study of phonons in single crystals of (PbSn)InTe with (metallic, but nonsuperconducting) and (nonmetallic…
Evidence for singular-phonon-induced nematic superconductivity in a topological superconductor candidate SrBiSe
Jinghui Wang, Kejing Ran, Shichao Li +11
Superconductivity mediated by phonons is typically conventional, exhibiting a momentum-independent s-wave pairing function, due to the isotropic interactions between electrons and…
Superconductivity in Potassium-intercalated Td-WTe2
Li Zhu, Qi-Yuan Li, Yang-Yang Lv +6
To realize topological superconductor is one of the most attracting topics because of its great potential in quantum computation. In this study, we successfully intercalate potassi…
Quasi-particle evidence for the nematic state above in SrBiSe
Yue Sun, Shunichiro Kittaka, Toshiro Sakakibara +6
In the electronic nematic state, an electronic system has a lower symmetry than the crystal structure of the same system. Electronic nematic states have been observed in various un…
Directly visualizing the sign change of d-wave superconducting gap in Bi2Sr2CaCu2O8+δ by phase-referenced quasiparticle interference
Qiangqiang Gu, Siyuan Wan, Qingkun Tang +7
The superconducting state is achieved by the condensation of Cooper pairs and is protected by the superconducting gap. The pairing interaction between the two electrons of a Cooper…
Unusual phonon density of states and response to the superconducting transition in the In-doped topological crystalline insulator PbSnTe
Kejing Ran, Ruidan Zhong, Tong Chen +13
We present inelastic neutron scattering results of phonons in (PbSn)InTe powders, with and 0.3. The sample is a topological crystalline insu…
Suppression of the antiferromagnetic order when approaching the superconducting state in a phase-separated crystal of KFeSe
Shichao Li, Yuan Gan, Jinghui Wang +15
We have combined elastic and inelastic neutron scattering techniques, magnetic susceptibility and resistivity measurements to study single-crystal samples of KFeSe,…
Unexpected Enhancement of Three-Dimensional Low-Energy Spin Correlations in Quasi-Two-Dimensional FeTeSe System at High Temperature
Zhijun Xu, J. A. Schneeloch, Jinsheng Wen +8
We report inelastic neutron scattering measurements of low energy ( meV) magnetic excitations in the "11" system FeTeSe. The spin correlations ar…
Magnetic neutron scattering studies on the Fe-based superconductor system FeTeSe
Jinsheng Wen
I present a brief overview on the interplay between magnetism and superconductivity in one of the Fe-based superconductor systems, \fts, where the research of our group has centere…
Effective medium approximation and the complex optical properties of the inhomogeneous superconductor K_{0.8}Fe_{2-y}Se_2
C. C. Homes, Z. J. Xu, J. S. Wen +1
The in-plane optical properties of the inhomogeneous iron-chalcogenide superconductor K_{0.8}Fe_{2-y}Se_2 with a critical temperature Tc = 31 K have been modeled in the normal stat…
Magnetic order tuned by Cu substitution in Fe1.1-zCuzTe
Jinsheng Wen, Zhijun Xu, Guangyong Xu +7
We study the effects of Cu substitution in Fe1.1Te, the non-superconducting parent compound of the iron-based superconductor, Fe1+yTe1-xSex, utilizing neutron scattering techniques…
Appearance of fluctuating stripes at the onset of the pseudogap in the high-Tc Superconductor Bi2Sr2CaCu2O8+x
Colin V. Parker, Pegor Aynajian, Eduardo H. da Silva Neto +6
Doped Mott insulators have been shown to have a strong propensity to form patterns of holes and spins often referred to as stripes. In copper-oxides, doping also gives rise to the…
Extending Universal Nodal Excitations Optimizes Superconductivity in Bi2Sr2CaCu2O8+d
Aakash Pushp, Colin V. Parker, Abhay. N. Pasupathy +6
Understanding the mechanism by which d-wave superconductivity in the cuprates emerges and is optimized by doping the Mott insulator is one of the major outstanding problems in cond…
Imaging nanoscale Fermi surface variations in an inhomogeneous superconductor
W. D. Wise, Kamalesh Chatterjee, M. C. Boyer +8
Particle-wave duality suggests we think of electrons as waves stretched across a sample, with wavevector k proportional to their momentum. Their arrangement in "k-space," and in pa…
Magnetic field induced enhancement of spin-order peak intensity in La(1.875)Ba(0.125)CuO(4)
Jinsheng Wen, Zhijun Xu, Guangyong Xu +4
We report on neutron-scattering results on the impact of a magnetic field on stripe order in the cuprate LaBaCuO. It is found that a 7 T magnetic field appl…
Evidence for unusual superconducting correlations coexisting with stripe order in La(1.875)Ba(0.125)CuO(4)
J. M. Tranquada, G. D. Gu, M. Huecker +10
We present new x-ray and neutron scattering measurements of stripe order in La(1.875)Ba(0.125)CuO(4), along with low-field susceptibility, thermal conductivity, and specific heat d…
Electronic Origin of the Inhomogeneous Pairing Interaction in the High-Tc Superconductor Bi2Sr2CaCu2O8+d
Abhay N. Pasupathy, Aakash Pushp, Kenjiro K. Gomes +7
Identifying the mechanism of superconductivity in the high-temperature cuprate superconductors is one of the major outstanding problems in physics. We report local measurements of…
High Energy Dispersions in Bi2Sr2CaCu2O8 High Temperature Superconductor from Laser-Based Angle-Resolved Photoemission
Wentao Zhang, Guodong Liu, Jianqiao Meng +17
Super-high resolution laser-based angle-resolved photoemission (ARPES) measurements have been carried out on the high energy electron dynamics in Bi2Sr2CaCu2O8 (Bi2212) high temper…
Identification of a New Form of Electron Coupling in Bi2Sr2CaCu2O8 Superconductor by Laser-Based Angle-Resolved Photoemission
Wentao Zhang, Guodong Liu, Lin Zhao +17
Laser-based angle-resolved photoemission measurements with super-high resolution have been carried out on an optimally-doped BiSrCaCuO high temperature superconduct…