Tunable electronic and magnetic properties in Eu1-xLaxTiO3 (0< x <1)

ORAL

Abstract

We explore the magnetic transitions and electronic structures of strained Eu1-xLaxTiO3 (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 ferromagnetism, skyrmions, and metal-insulator transition. We show the studies of high-quality thin films of Eu1-xLaxTiO3 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.

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Presenters

  • Hyungki Shin

    Department of Physics, University of British Columbia, Stewart Blusson Quantum Matter Institute, University of British Columbia, University of British Columbia

Authors

  • Hyungki Shin

    Department of Physics, University of British Columbia, Stewart Blusson Quantum Matter Institute, University of British Columbia, University of British Columbia

  • Bruce Davidson

    Quantum material institute, University of British Columbia, University of British Columbia

  • Fengmiao Li

    Quantum material institute, University of British Columbia

  • Chong Liu

    University of British Columbia, Quantum material institute, University of British Columbia, Stewart Blusson Quantum Matter Institute, University of British Columbia

  • Ronny Sutarto

    Canadian Light Source, Canadian Lightsource

  • Ke Zou

    University of British Columbia, Department of Physics, University of British Columbia, Department of Physics & Astronomy, Stewart Blusson Quantum Matter Institute, The University of British Columbia, Stewart Blusson Quantum Matter Institute, University of British Columbia