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Revealing intrinsic vortex-core states in Fe-based superconductors through machine-learning-driven discovery
Yueming Guo, Hu Miao, Qiang Zou +5
Electronic states within superconducting vortices hold crucial information about paring mechanisms and topology. While scanning tunneling microscopy/spectroscopy(STM/S) can image t…
Gapless spin-excitations in the superconducting state of a quasi-one-dimensional spin-triplet superconductor
Keith M. Taddei, Bing-Hua Lei, Michael A. Susner +9
Majorana zero modes form as intrinsic defects in an odd-orbital one-dimensional superconductor thus motivating the search for such materials in the pursuit of Majorana physics. Her…
Multiband effects on the upper critical field angular dependence of 122-family iron pnictide superconductors
I. F. Llovo, C. Carballeira, D. Sóñora +5
Detailed measurements of the in-plane resistivity were performed in a high-quality Ba(FeCo)As () single crystal, in magnetic fields up to 9 T and wit…
Superconductivity with Tc=7 K under pressure for Cu-, and Au-doped BaFe2As2
L. Li, D. S. Parker, Z. Gai +2
It is noteworthy that chemical substitution of BaFe2As2 (122) with the noble elements Cu and Au gives superconductivity with a maximum Tc=3 K, while Ag substitution (Ag-122) stays…
Competitive and Cooperative electronic states in Ba(FeT)As with T=Co, Ni, Cr
Qiang Zou, Mingming Fu, Zhiming Wu +4
The electronic structure inhomogeneities in Co, Ni, and Cr doped BaFe2As2 122 single crystals are compared using scanning tunneling microscopy/spectroscopy (STM/S) at the nanoscale…
Nanoscale Interlayer Defects in Iron Arsenides
Qiang Zheng, Miaofang Chi, Maxim Ziatdinov +5
Using a local real-space microscopy probe, we discover evidence of nanoscale interlayer defects along the c-crystallographic direction in BaFe2As2 (122) based iron-arsenide superco…