Charged domain boundaries stabilized by translational symmetry breaking in the hybrid improper ferroelectric Ca${}_{3-x}$Sr${}_x$Ti${}_2$O${}_7$

Hiroshi Nakajima, Kosuke Kurushima, Shinya Mine +5

Charged domain walls and boundaries in ferroelectric materials display distinct phenomena, such as an increased conductivity due to the accumulation of bound charges. Here, we repo…