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.C23.2
Abstract: C23.00002 : Anomalous Hall effect in high mobility La doped EuTiO3 films on LSAT substrates grown by gas source molecular beam epitaxy*
2:42 PM–2:54 PM
Presenter:
Kei Takahashi
(Center for Emergent Matter Science (CEMS), RIKEN)
Authors:
Kei Takahashi
(Center for Emergent Matter Science (CEMS), RIKEN)
Hiroaki Ishizuka
(Department of Applied Physics, University of Tokyo)
Tomoki Murata
(Center for Emergent Matter Science (CEMS), RIKEN)
Qing Wang
(Center for Emergent Matter Science (CEMS), RIKEN)
Yoshinori Tokura
(Center for Emergent Matter Science (CEMS), RIKEN)
Naoto Nagaosa
(Department of Applied Physics, University of Tokyo)
Masashi Kawasaki
(Department of Applied Physics, University of Tokyo)
Here, high crystalline quality films of Eu1-xLaxTiO3 were successfully grown on LSAT substrates by metalorganic gas source molecular beam epitaxy (MOMBE). The electron mobility reaches 300 cm2V-1s-1 at 2 K, which is one order of magnitude higher than that of PLD films. An additional term of AHE, which is not proportional to magnetization curve, was clearly observed for high mobility MOMBE films. Model calculations reveal that the change of Zeeman energy splitting during the magnetization process causes the non-monotonic behavior of AHE. These results strongly suggests that the high mobility EuTiO3 film is an excellent platform for investigating transport phenomena of spin polarized electrons.
*This work was partly supported by the CREST-JST (no. JPMJCR16F1) and PRESTO-JST (no. JPMJPR1527).
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.MAR.C23.2
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