Microstructural properties of K0.8 Fe1.6 S2, K0.8 Fe1.75 Se2-y Sy(0 ≤ y ≤ 2) and K0.8 Fe1.5+x S2(0 < x ≤ 0.5) single crystals
EPL, 103 3 (2013) 37010
Published online: 30 August 2013
DOI: 10.1209/0295-5075/103/37010