404 citations · 2.1k across the 29 of their papers we have counts for
29 papers
Tuning electronic properties of FeSeTe thin flakes by a novel field effect transistor
C. S. Zhu, J. H. Cui, B. Lei +8
Using a field-effect transistor (FET) configuration with solid Li-ion conductor (SIC) as gate dielectric, we have successfully tuned carrier density in FeSeTe thin…
Reemergeing electronic nematicity in heavily hole-doped Fe-based superconductors
J. Li, D. Zhao, Y. P. Wu +8
In correlated electrons system, quantum melting of electronic crystalline phase often gives rise to many novel electronic phases. In cuprates superconductors, melting the Mott insu…
Tuning phase transitions of FeSe thin flakes by field effect transistor with solid ion conductor as gate dielectric
B. Lei, N. Z. Wang, C. Shang +12
We develop a novel field effect transistor (FET) device using solid ion conductor (SIC) as a gate dielectric, and we can tune the carrier density of FeSe by driving lithium ions in…
Evolution of high-temperature superconductivity from low-Tc phase tuned by carrier concentration in FeSe thin flakes
B. Lei, J. H. Cui, Z. J. Xiang +7
In contrast to bulk FeSe superconductor, heavily electron-doped FeSe-derived superconductors show relatively high Tc without hole Fermi surfaces and nodal superconducting gap struc…
Emergent Kondo scaling in iron-based superconductors AFe2As2 (A = K, Rb, Cs)
Y. P. Wu, D. Zhao, A. F. Wang +5
Unconventional superconductivity from heavy fermion (HF) is always observed in f-electron systems, in which Kondo physics between localized f-electrons and itinerant electrons play…
Pressure-induced Lifshitz transition in black phosphorus
Z. J. Xiang, G. J. Ye, C. Shang +10
In a semimetal, both electron and hole carriers contribute to the density of states at the Fermi level. The small band overlaps and multi-band effects give rise to many novel elect…
Gate-tuned Superconductor-Insulator transition in (Li,Fe)OHFeSe
B. Lei, Z. J. Xiang, X. F. Lu +7
The antiferromagnetic(AFM) insulator-superconductor transition has been always a center of interest in the underlying physics of unconventional superconductors. The quantum phase t…
Ultralow-frequency collective compression mode and strong interlayer coupling in multilayer black phosphorus
Shan Dong, Anmin Zhang, Kai Liu +9
The recent renaissance of black phosphorus (BP) as a two-dimensional 2D layered material has generated tremendous interest in its tunable electronic band gap and highly anisotropic…
Universal V-shaped temperature-pressure phase diagram in the iron-based superconductors KFe2As2, RbFe2As2, and CsFe2As2
F. F. Tafti, A. Ouellet, A. Juneau-Fecteau +7
We report a sudden reversal in the pressure dependence of Tc in the iron-based superconductor RbFe2As2, at a critical pressure Pc = 11 kbar. Combined with our prior results on KFe2…
Electronic structure in one-Fe Brillouin zone of iron-pnictide superconductor CsFeAs
S. Kong, D. Y. Liu, S. T. Cui +7
The multiband nature of iron-pnictide superconductors is one of the keys to the understanding of their intriguing behavior. The electronic and magnetic properties heavily rely on t…
Structure determination and coexistence of superconductivity and antiferromagnetic order in (Li0.8Fe0.2)OHFeSe
X. F. Lu, N. Z. Wang, H. Wu +10
FeSe-derived superconductors show some unique behaviors relative to iron-pnictide superconductors, which are very helpful to understand the mechanism of superconductivity in high-T…
Sudden reversal in the pressure dependence of Tc in the iron-based superconductor CsFe2As2: A possible link between inelastic scattering and pairing symmetry
F. F. Tafti, J. P. Clancy, M. Lapointe-Major +11
We report a sudden reversal in the pressure dependence of Tc in the iron-based superconductor CsFe2As2, similar to that discovered recently in KFe2As2 [Tafti et al., Nat. Phys. 9,…
Heat transport in RbFe2As2 single crystal: evidence for nodal superconducting gap
Z. Zhang, A. F. Wang, X. C. Hong +7
The in-plane thermal conductivity of iron-based superconductor RbFeAs single crystal ( 2.1 K) was measured down to 100 mK. In zero field, the observation of a…
Superconductivity in LiFeO2Fe2Se2 with anti-PbO-type Spacer Layers
X. F. Lu, N. Z. Wang, G. H. Zhang +5
Superconductivity has been found in the iron-arsenides with different structures by alternative stacking of the conducting Fe2As2 layers and spacer layers including alkali- or alka…
Magnetoresistance evidence on surface state and field-dependent bulk gap in Kondo insulator SmB6
F. Chen, C. Shang, Z. Jin +8
Recently, the resistance saturation at low temperature in Kondo insulator SmB6, a long-standing puzzle in condensed matter physics, was proposed to originate from topological surfa…
Nodal gap in iron-based superconductor CsFeAs probed by quasiparticle heat transport
X. C. Hong, X. L. Li, B. Y. Pan +5
The thermal conductivity of iron-based superconductor CsFeAs single crystal ( 1.81 K) was measured down to 50 mK. A significant residual linear term = 1.27 m…
Change of pairing symmetry in the iron-based superconductor KFe2As2
F. F. Tafti, A. Juneau-Fecteau, M. -E. Delage +7
The pairing mechanism in iron-based superconductors is the subject of ongoing debate. Proximity to an antiferromagnetic phase suggests that pairing is mediated by spin fluctuations…
From d-wave to s-wave pairing in the iron-pnictide superconductor (Ba,K)Fe2As2
J. -Ph. Reid, A. Juneau-Fecteau, R. T. Gordon +18
The nature of the pairing state in iron-based superconductors is the subject of much debate. Here we argue that in one material, the stoichiometric iron pnictide KFe2As2, there is…
Evolution of band structure from optimally doped to heavily overdoped Co-substituted NaFeAs
S. T. Cui, S. Y. Zhu, A. F. Wang +6
Using angle-resolved photoemission spectroscopy, we studied the electronic structure of NaFeCoAs from an optimally doped superconducting compound () to a heavi…
Evidence for nodeless superconducting gap in NaFeCoAs from low-temperature thermal conductivity measurements
S. Y. Zhou, X. C. Hong, X. Qiu +8
The thermal conductivity of optimally doped NaFeCoAs ( 20 K) and overdoped NaFeCoAs ( 11 K) single crystals were measure…
Enhanced Superconductivity by Rare-earth Metal-doping in Phenanthrene
X. F. Wang, X. G. Luo, J. J. Ying +9
We successfully synthesized La- and Sm-doped phenanthrene powder samples and discovered superconductivity at around 6 K in them. The s are 6.1 K for LaPhenan…
Physical properties of FeS (=K, Rb and Cs) single crystals
J. J. Ying, Z. J. Xiang, Z. Y. Li +5
We successfully synthesized two new compounds RbFeS and CsFeS which were isostructural with KFeSe superconductor. We systematically…
Phase diagram as a function of doping level and pressure in EuLaFeAs system
M. Zhang, J. J. Ying, Y. J. Yan +8
We establish the phase diagram of EuLaFeAs system as a function of doping level x and the pressure by measuring the resistivity and magnetic susceptibility. The…
SDW transition of Fe1 zigzag chains and metamagnetic transition of Fe2 in TaFeTe
R. H. Liu, M. Zhang, P. Cheng +8
We systematically study the AFM order of Fe1 zigzag chains and spin-flop of excess Fe2 under high magnetic field H through the susceptibility, magnetoresistance (MR), Hall effect a…