Bulletin of the American Physical Society
APS March Meeting 2018
Volume 63, Number 1
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session C23: Controlling Magnetism in Oxide Heterostructures II
2:30 PM–5:30 PM,
Monday, March 5, 2018
LACC
Room: 402B
Sponsoring
Units:
GMAG DMP DCOMP
Chair: Yaohua Liu, Oak Ridge National Lab
Abstract ID: BAPS.2018.MAR.C23.3
Abstract: C23.00003 : Fabrication and magnetotransport properties of high mobility EuTiO3 quantum wells
2:54 PM–3:06 PM
Presenter:
Kazuki Maruhashi
(Department of Applied Physics, The University of Tokyo)
Authors:
Kazuki Maruhashi
(Department of Applied Physics, The University of Tokyo)
Kei Takahashi
(CEMS, RIKEN)
Yoshinori Tokura
(CEMS, RIKEN)
Masashi Kawasaki
(Department of Applied Physics, The University of Tokyo)
In this work, we fabricated Eu1-xLaxTiO3 films on SrTiO3 (STO) substrates by metal organic gas source molecular beam epitaxy (MOMBE) at very high substrate temperature (1200 °C). It is expected that there is no epitaxial strain due to the identical lattice constants of ETO and STO. By optimizing the annealing conditions, we succeeded in compensating the oxygen vacancies and in investigating the transport properties of the films. The mobility of electrons is two orders of magnitude higher than that of PLD films and the maximum value reaches 3000 cm2V-1s-1 at 2 K. We clearly observed Shubnikov-de Haas oscillations in magnetoresistance and non-monotonic behavior of AHE. Our results will provide unique insights into the quantum transport of low carrier density electrons with spin polarization.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.MAR.C23.3
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