Electrochemical synthesis of alkali-intercalated iron selenide superconductors<xref ref-type="fn" rid="cpb152144fn1">*</xref>

Electrochemical synthesis of alkali-intercalated iron selenide superconductors*

Shen Shi-Jie^a), Ying Tian-Ping^a), Wang Gang^a), Jin Shi-Feng^a), Zhang Han^a), Lin Zhi-Ping^a), Chen Xiao-Long^a),^b)

Temperature-dependent magnetization of (a) K_xFe₂Se₂ and (b) Na_xFe₂Se₂ in an applied magnetic field of 40 Oe. Arrows indicate the T _c.