We present the first study of codoped iron-arsenide superconductors of the 122 family (Sr/Ba)1−xKxFe2−yCoyAs2 with the purpose to increase the upper critical field Hc2 compared to sin-gle doped Sr/BaFe2As2 materials. Hc2 was investigated by measuring the magnetoresistance in high pulsed magnetic fields up to 64 T. We find, that Hc2 extrapolated to T = 0 is indeed enhanced significantly to ≈ 90 T for polycrystalline samples of Ba0.55K0.45Fe1.95Co0.05As2 compared to ≈ 75 T for Ba0.55K0.45Fe2As2 and BaFe1.8Co0.2As2 single crystals. Codoping thus is a promising way for the systematic optimization of iron-arsenic based superconductors for magnetic-field and high-current applications. PACS numbers: 74.25.Dw; 74.25.Fy; 74.25.Op; 74.62.Dh I
(Ba,K) Fe2As2 superconducting wires and tapes are fabricated by using hot isostatic pressing (HIP) t...
The critical current density Jc is a crucial parameter to establish the actual technological potenti...
© 2017 American Physical Society. We study angular-dependent magnetoresistance in iron-based superco...
Magnetisation and magneto-resistance measurements have been carried out on superconducting Ba1-xKxFe...
This thesis presents the results of resistivity, torque magnetometry and magnetisation ex- periments...
We show magnetotransport results on Ba(Fe1−xCox)2As2 (0.0⩽x⩽0.13) single crystals. We identify the l...
The temperature dependence of the magnetic penetration depth (λ) has been measured in single crystal...
The iron arsenide RbFe_2As_2 with the ThCr_2Si_2-type structure is found to be a bulk superconductor...
Three years since the discovery by the Hosono\u2019s group of Fe-based superconductors, an enormous ...
Measurements of temperature-dependent in-plane resistivity ρ(T) were used to determine the upper cri...
In general, the critical current density, Jc, of type II superconductors and its anisotropy with res...
We measured the static uniform spin susceptibility of Ba(Fe1−xRhx)2As2 iron-based superconductors, o...
We report the intrinsic superconducting parameters in a heavily overdoped Ba(Fe1-xCox)2As2 (x=0.14) ...
The study of iron-based superconductors exists at the intersection of some of the most fascinating d...
This thesis compares the iron-based superconductors KFe2As2, RbFe2As2, and CsFe2As2 based on thermal...
(Ba,K) Fe2As2 superconducting wires and tapes are fabricated by using hot isostatic pressing (HIP) t...
The critical current density Jc is a crucial parameter to establish the actual technological potenti...
© 2017 American Physical Society. We study angular-dependent magnetoresistance in iron-based superco...
Magnetisation and magneto-resistance measurements have been carried out on superconducting Ba1-xKxFe...
This thesis presents the results of resistivity, torque magnetometry and magnetisation ex- periments...
We show magnetotransport results on Ba(Fe1−xCox)2As2 (0.0⩽x⩽0.13) single crystals. We identify the l...
The temperature dependence of the magnetic penetration depth (λ) has been measured in single crystal...
The iron arsenide RbFe_2As_2 with the ThCr_2Si_2-type structure is found to be a bulk superconductor...
Three years since the discovery by the Hosono\u2019s group of Fe-based superconductors, an enormous ...
Measurements of temperature-dependent in-plane resistivity ρ(T) were used to determine the upper cri...
In general, the critical current density, Jc, of type II superconductors and its anisotropy with res...
We measured the static uniform spin susceptibility of Ba(Fe1−xRhx)2As2 iron-based superconductors, o...
We report the intrinsic superconducting parameters in a heavily overdoped Ba(Fe1-xCox)2As2 (x=0.14) ...
The study of iron-based superconductors exists at the intersection of some of the most fascinating d...
This thesis compares the iron-based superconductors KFe2As2, RbFe2As2, and CsFe2As2 based on thermal...
(Ba,K) Fe2As2 superconducting wires and tapes are fabricated by using hot isostatic pressing (HIP) t...
The critical current density Jc is a crucial parameter to establish the actual technological potenti...
© 2017 American Physical Society. We study angular-dependent magnetoresistance in iron-based superco...