journal article·2018-08-01Open access

Atomic-scale structure and chemistry of YIG/GGG

Mengchao Liu, Lichuan Jin, Jingmin Zhang, Qinghui Yang, Huaiwu Zhang, Peng Gao, Dapeng Yu

AIP Advances· Volume 8· Issue 8

Abstract

Y3Fe5O12 (YIG) is a promising candidate for spin wave devices. In the thin film devices, the interface between YIG and substrate may play important roles in determining the device properties. Here, we use spherical aberration-corrected scanning electron microscopy and spectroscopy to study the atomic arrangement, chemistry and electronic structure of the YIG/Gd3Ga5O12 (GGG) interface. We find that the chemical bonding of the interface is FeO-GdGaO and the interface remains sharp in both atomic and electronic structures. We provide an efficient method to study the interface chemical bonding, and these results give necessary information for understanding the properties of interface and also for atomistic calculation.
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Research context

OpenAlex topics: Magnetic properties of thin films · Magneto-Optical Properties and Applications · Magnetic Properties and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Electron Microscopy Laboratory, School of Physics, Peking University 1 , Beijing 100871, China

State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China 2 , Chengdu 610054, China

International Center for Quantum Materials, School of Physics, Peking University 3 , Beijing 100871, China

Collaborative Innovation Centre of Quantum Matter 4 , Beijing 100871, China

State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University 5 , Beijing 100871, People’s Republic of China

Institute for Quantum Science and Engineering and Department of Physics, South University of Science and Technology of China 6 , Shenzhen 518055, People’s Republic of China

Funding

"2011 Program" Peking-Tsinghua-IOP Collaborative Innovation Center of Quantum Matter · National Key R&D Program of China · National Program for Thousand Young Talents of China · National Natural Science Foundation of China

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