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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…
Phase diagram and physical properties of NaFeCuAs single crystals
A. F. Wang, J. J. Lin, P. Cheng +7
A series of high quality NaFeCuAs single crystals has been grown by a self-flux technique, which were systematically characterized via structural, transport, thermodyna…
Calorimetric study in single crystal of CsFeAs
A. F. Wang, B. Y. Pan, X. G. Luo +8
We measured resistivity and specific heat of high-quality CsFeAs single crystals, which were grown by using a self-flux method. The CsFeAs crystal shows sharp super…
Power-law Temperature Dependent Hall Angle in the Normal State and its Correlation with Superconductivity in iron-pnictides
Y. J. Yan, A. F. Wang, X. G. Luo +6
We report Hall measurement of the normal state in K- and Co-doped BaFeAs, as well NaFeCoAs. We found that a power-law temperature dependence of Hall angle, cot$…
Superconductivity in Yb()HfNCl ( = NH and THF)
Guojun Ye, Jianjun Ying, Yajun Yan +5
The intercalated layered nitride -HfNCl has attracted much attention due to the high superconducting transition temperature up to 25.5 K. Electrons can be introduced into -$M…
A crossover in phase diagram of NaFeCoAs determined by electronic transport measurements
A. F. Wang, J. J. Ying, X. G. Luo +8
We report electronic transport measurements on single crystals of NaFeCoAs system. We found that the cotangent of Hall angle, cot, follows for the pare…