Uniaxial strain detwinning of CaFe2As2 and BaFe2As2: optical and transport study

M. A. Tanatar, E. C. Blomberg, A. Kreyssig +8

TThe parent compounds of iron-arsenide superconductors, $A$Fe${}_2$As${}_2$ ($A$=Ca, Sr, Ba), undergo a tetragonal to orthorhombic structural transition at a temperature $T_{\mathr…