(0< x <1)

We explore the electronic and magnetic transitions of strained thin film Eu_1-xLa_xTiO₃ (0< x <1) grown by oxide molecular beam epitaxy (MBE). In bulk, undoped EuTiO₃ (Ti⁴⁺) is insulating and antiferromagnetic with a Néel temperature of ~ 5.5 K, while LaTiO₃(Ti³⁺) is a Mott insulator with a Néel temperature of ~ 160K. Previous experiments of doping EuTiO₃ or LaTiO₃ thin films show novel emergent states, such as antiferromagnetic or ferromagnetic, anomalous Hall effect, and metal-insulator transition. We show the properties of high-quality thin films of Eu_1-xLa_xTiO₃ from x = 0 to x = 1. With a different ratio of Eu²⁺/La³⁺, we observe a series of transitions in the films. We will complete the phase diagram of this system.

H. Shin, et al., PHYS. REV. B 101, 214105 (2020)