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Flux dynamics and vortex phase diagram in single crystals revealed by magnetization and its relaxation
Bing Shen, Peng Cheng, Zhaosheng Wang +4
Magnetization and its relaxation have been measured in single crystals at various doping levels ranging fromvery underdoped to very overdoped regimes. Siza…
Thermal conductivity of overdoped BaFeCoAs single crystal: Evidence for nodeless multiple superconducting gaps and interband interactions
J. K. Dong, S. Y. Zhou, T. Y. Guan +6
The in-plane thermal conductivity of overdoped FeAs-based superconductor BaFeCoAs ( = 8.1 K) single crystal was measured down to 80 mK. In zero field…
Specific-Heat Measurement of Residual Superconductivity in the Normal State of Underdoped Cuprate Superconductors
Hai-Hu Wen, Gang Mu, Huiqian Luo +6
We have measured the magnetic field and temperature dependence of specific heat on single crystals in wide doping and temperature regions. The supercond…
Impurity Scattering Effect on Superconductivity and the Violation of Anderson Theorem in Ba(Fe_{1-x}Co_x)_2As_2 Single Crystals
Gang Mu, Bin Zeng, Peng Cheng +6
Low-temperature specific heat (SH) and resistivity were measured on Ba(Fe_{1-x}Co_x)_2As_2 single crystals in wide doping region. A sizeable residual specific heat coefficient γ_0…
Superconductivity and phase diagrams in 4d- and 5d-metal-doped iron arsenides SrFe_{2-x}M_xAs_2 (M = Rh, Ir, Pd)
Fei Han, Xiyu Zhu, Peng Cheng +10
By substituting the Fe with the 4d and 5d-transition metals Rh, Ir and Pd in SrFe_2As_2, we have successfully synthesized a series of superconductors SrFe_{2-x}M_xAs_2 (M = Rh, Ir…
Tailoring the Superconductivity and Antiferromagnetic Order in SrFe2-xRhxAs2
Fei Han, Xiyu Zhu, Peng Cheng +2
By doping Rh to the Fe sites in SrFe2As2, superconductivity is induced when the antiferromagnetic (AF) order is suppressed. The maximum superconducting transition temperature was f…