2 papers
cond-mat.supr-con2025
The True Parent Phase of K1.9Fe4.2Se5: A Stripe-type Orthorhombic Phase Requiring a Superconducting Distortion
Chih-Han Wang, Jie-Yu Yang, Wu Phillip M +3
The origin of the four-fold Tc amplification in A_xFe_{2-y}Se_2 (>30 K) compared to FeSe (8 K) remains a central puzzle, complicated by a debate over the true superconducting (SC)…
cond-mat.supr-con2018
Role of the Extra-Fe in K2-xFe4+ySe5 superconductors
Chih-Han Wang, Chih-Chien Lee, Gwo-Tzong Huang +5
The exact superconducting phase of K2-xFe4+ySe5 has yet conclusively decided since its discovery due to its intrinsic multiphase in early material. In an attempt to resolve the mys…