159 citations · 500 across the 8 of their papers we have counts for
8 papers
Expansion of the tetragonal magnetic phase with pressure in the iron-arsenide superconductor Ba{1-x}KxFe2As2
E. Hassinger, G. Gredat, F. Valade +11
In the temperature-concentration phase diagram of most iron-based superconductors, antiferromagnetic order is gradually suppressed to zero at a critical point, and a dome of superc…
Anomalous phonon redshift in K-doped BaFe2As2 iron pnictides
B. Xu, Y. M. Dai, B. Shen +9
The effect of K, Co and P dopings on the lattice dynamics in the BaFeAs system is studied by infrared spectroscopy. We focus on the phonon at 253 cm, the high…
Lower critical field and SNS-Andreev spectroscopy of 122-arsenides: Evidence of nodeless superconducting gap
M. Abdel-Hafiez, P. J. Pereira, S. A. Kuzmichev +10
Using two experimental techniques, we studied single crystals of the 122-FeAs family with almost the same critical temperature, Tc. We investigated the temperature dependence of th…
Effects of electron irradiation on resistivity and London penetration depth of BaKFeAs ( 0.34) iron - pnictide superconductor
K. Cho, M. Konczykowski, J. Murphy +6
Irradiation with 2.5 MeV electrons at doses up to 5.2 10 electrons/cm was used to introduce point-like defects in single crystals of BaKFeAs…
Sign-reversal of the in-plane resistivity anisotropy in iron pnictides
E. C. Blomberg, M. A. Tanatar, R. M. Fernandes +6
The concept of an electronically-driven breaking of the rotational symmetry of a crystal, without involving magnetic order, has found experimental support in several systems, from…
Sign-reversal of the in-plane resistivity anisotropy in hole-doped iron pnictides
E. C. Blomberg, M. A. Tanatar, R. M. Fernandes +4
The in-plane anisotropy of the electrical resistivity across the coupled orthorhombic and magnetic transitions of the iron pnictides has been extensively studied in the parent and…
Significant enhancement of upper critical fields by doping and strain in Fe-based superconductors
C. Tarantini, A. Gurevich, J. Jaroszynski +7
We report measurements of Hc2(T) up to 85 Tesla on Ba1-xKxAs2Fe2 single crystals and FeSe1-xTex films tuned by doping and strain. We observed an Hc2 enhancement by nearly 25 T at 3…
Comparative studies of the scanning tunneling spectra in cuprate and iron-arsenide superconductors
N. -C. Yeh, M. L. Teague, A. D. Beyer +2
We report scanning tunneling spectroscopic studies of cuprate and iron-arsenic superconductors, including YBa_2Cu_3O_{7-δ} (Y-123, T_c = 93 K), Sr_{0.9}La_{0.1}CuO_2 (La-112, T_c =…