Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session A47: Proximity Effects and Spin Transport in Complex Oxides
8:00 AM–11:00 AM,
Monday, March 2, 2020
Room: 710/712
Sponsoring
Units:
GMAG DMP DCOMP
Chair: Qian Li, University of California, Berkeley
Abstract: A47.00013 : Structural, Magnetic and Electrical Transport Properties of YIG Thin Films with Heavily Reduced Oxygen Content
Presenter:
Shu Mi
(Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University)
Authors:
Shu Mi
(Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University)
Venkata Swamy Gollapothu
(Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University)
Haoliang Huang
(CAS Key Laboratory of Materials for Energy Conversion, Hefei National Laboratory for Physical Sciences at the Microscale & National Synchrotron Radiation Laboratory, Universi)
Yalin Lu
(CAS Key Laboratory of Materials for Energy Conversion, Hefei National Laboratory for Physical Sciences at the Microscale & National Synchrotron Radiation Laboratory, Universi)
Yonggang Zhao
(Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University)
We have investigated the effect of oxygen content on structural, magnetic and electrical transport properties of YIG films with heavily reduced oxygen contents, obtained via annealing with the presence of carbon. Both the saturation magnetic moment and lattice parameter of YIG decrease with reduced oxygen content, and the electrical resistivity of YIG decreases several orders of magnitude with the lowest value of 0.23 Ωcm at 300 K. The electronic transport behaviors are analyzed in detail by variable-range hopping (VRH) and trap-controlled space charge limited (SCL) conduction. This work is helpful for understanding the effect of oxygen content on the properties of YIG.
References
[1] A. V. Chumak, et. al, Nat. Phys. 11, 453 (2015)
[2] W. Noun, et. al. Phys. Rev. B. 81, 054411 (2010)
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