Amigó, M. L., M. V. Ale Crivillero, D. G. Franco, A. Badíaâ€“Majós, J. Guimpel, J. Campo, F. Damay, F. Porcher, A. M. Condó, and G. Nieva. "Intrinsic pinning by naturally occurring correlated defects in FeSe 1âˆ’ x Te x superconductors." Superconductor Science and Technology 30, no. 8 (2017): 085010.
Abstract: We study the angular dependence of dissipation in the superconducting state of FeSe and Fe(Se 1âˆ’ x Te x ) through electrical transport measurements, using crystalline intergrown materials. We reveal the key role of the inclusions of the non superconducting magnetic phase Fe 1âˆ’ y (Se 1âˆ’ x Te x ), growing into the Fe(Se 1âˆ’ x Te x ) pure Î² -phase, in the development of a correlated defect structure. The matching of both atomic structures defines the growth habit of the crystalline material as well as the correlated planar defects orientation.