Transition-Metal Substitutions in Iron Chalcogenides

V. L. Bezusyy, D. J. Gawryluk, A. Malinowski +1

The $ab$-plane resistivity and Hall effect are studied in Fe${}_{1-y}$M${}_y$Te${}_{0.65}$Se${}_{0.35}$ single crystals doped with two transition metal elements, M = Co or Ni, over a wide…