335 citations · 852 across the 17 of their papers we have counts for
17 papers
Superconductivity Discovered in Niobium Polyhydride at High Pressures
X. He, C. L. Zhang, Z. W. Li +15
Niobium polyhydride was synthesized at high pressure and high temperature conditions by using diamond anvil cell combined with in situ high pressure laser heating techniques. High…
Superconductivity above 80 K in polyhydrides of hafnium
C. L. Zhang, X. He, Z. W. Li +15
Studies on polyhydrides are attracting growing attentions recently due to their potential high temperature superconductivity (SC). We here report the discovery of SC in hafnium pol…
Nodal superconducting gap in LiFeP revealed by NMR: contrast with LiFeAs
A. F. Fang, R. Zhou, H. Tukada +5
Identifying the uniqueness of FeP-based superconductors may shed new lights on the mechanism of superconductivity in iron-pnictides. Here, we report nuclear magnetic resonance(NMR)…
Single Crystal Growth and Spin Polarization Measurements of Diluted Magnetic Semiconductor (BaK)(ZnMn)2As2
G. Q. Zhao, C. J. Lin, Z. Deng +7
Recently a new type diluted magnetic semiconductor (BaK)(ZnMn)2As2 (BZA) with high Cure temperature (Tc) was discovered showing independent spin and charge doping mechanism. This m…
Orbital selectivity of layer resolved tunneling on iron superconductor Ba0.6K0.4Fe2As2
J. -X. Yin, X. -X. Wu, Jian Li +15
We use scanning tunneling microscopy/spectroscopy (STM/S) to elucidate the Cooper pairing of the iron pnictide superconductor Ba0.6K0.4Fe2As2. By a cold-cleaving technique, we obta…
Orbital Order and Spin Nematicity in the Tetragonal Phase of Electron-doped Iron-Pnictides NaFeCoAs
R. Zhou, L. Y. Xing, X. C. Wang +2
In copper-oxide and iron-based high temperature (high-) superconductors, many physical properties exhibit in-plane anisotropy, which is believed to be caused by a rotati…
Coexistence of Clean- and Dirty-limit Superconductivity in LiFeAs
Y. M. Dai, H. Miao, L. Y. Xing +4
The optical properties of LiFeAs with 18 K have been determined in the normal and superconducting states. The superposition of two Drude components yields a good descr…
Superconductivity in Strong Spin Orbital Coupling Compound Sb2Se3
P. P. Kong, F. Sun, L. Y. Xing +15
Recently, A2B3 type strong spin orbital coupling compounds such as Bi2Te3, Bi2Se3 and Sb2Te3 were theoretically predicated to be topological insulators and demonstrated through exp…
(Ca,Na)(Zn,Mn)2As2: a new spin & charge doping decoupled diluted ferromagnetic semiconductor with hexagonal CaAl2Si2 structure
K. Zhao, B. J. Chen, Z. Deng +17
Here we report the successful synthesis of a spin- & charge-decoupled diluted magnetic semiconductor (Ca,Na)(Zn,Mn)2As2, crystallizing into the hexagonal CaAl2Si2 structure. The co…
The anomaly Cu doping effects on LiFeAs superconductors
L. Y. Xing, H. Miao, X. C. Wang +5
The Cu substitution effect on the superconductivity of LiFeAs has been studied in comparison with Co/Ni substitution. It is found that the shrinking rate of the lattice parameter c…
Extraordinary quasiparticle scattering and bandwidth-control by dopants in iron-based superconductors
Z. R. Ye, Y. Zhang, F. Chen +9
The diversities in crystal structures and ways of doping result in extremely diversified phase diagrams for iron-based superconductors. With angle-resolved photoemission spectrosco…
Visualization of Electron Nematicity and Unidirectional Antiferroic Fluctuations at High Temperatures in NaFeAs
E. P. Rosenthal, E. F. Andrade, C. J. Arguello +6
The driving forces behind electronic nematicity in the iron pnictides remain hotly debated. We use atomic-resolution variable-temperature scanning tunneling spectroscopy to provide…
Specific Heat vs Field of LiFe1-xCuxAs
J. S. Kim, G. R. Stewart, L. Y. Xing +2
LiFeAs is one of the new class of iron superconductors with a bulk onset Tc in the 15-17 K range. We report on the specific heat characterization of single crystal material prepare…
The doping dependence of superconductivity of (Ca1-xNax)Fe2As2
K. Zhao, Q. Q. Liu, X. C. Wang +5
Single crystalline CaFe2As2 and (Ca1-xNax)Fe2As2 polycrystals (0 < x < 0.66) are synthesized and characterized using structural, magnetic, electronic transport, and heat capacity m…
Multiple superconducting gap and anisotropic spin fluctuations in iron arsenides: Comparison with nickel analog
Z. Li, S. Kawasaki, T. Oka +12
We present extensive 75As NMR and NQR data on the superconducting arsenides PrFeAs0.89F0.11 (Tc=45 K), LaFeAsO0.92F0.08 (Tc=27 K), LiFeAs (Tc = 17 K) and Ba0.72K0.28Fe2As2 (Tc = 31…
Pressure induced Superconductivity in Topological Compound Bi2Te3
J. L. Zhang, S. J. Zhang, H. M. Weng +15
Bi2Te3 compound has been theoretically predicted (1) to be a topological insulator, and its topologically non-trivial surface state with a single Dirac cone has been observed in ph…
Superconductivity at 31 K in 111 type iron arsenide superconductor NaxFeAs induced by pressure
S. J. Zhang, X. C. Wang, Q. Q. Liu +8
The effect of pressure on superconductivity of 111 type NaxFeAs is investigated through temperature dependent electrical resistance measurement in a diamond anvil cell. The superco…