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	Formation of metastable MgO structures on type-III oxide surfaces: Effect of periodic out-of-plane electric dipole moment of substrates
	Yuan, H. T. ; Liu, Y. Z. ; Zeng, Z. Q. ; Mei, Z. X. ; Guo, Y. ; Zhang, P. ; Du, X. L. ; Jia, J. F. ; Zhang, Z. ; Xue, Q. K.
	2010-10-12 ; 2010-10-12
关键词	Interface Metastable structure Phase equilibrium Planar defects Molecular beam epitaxy MgO GROWTH EQUILIBRIUM ZNO Crystallography
中文摘要	Metastable structures of MgO overlayer on type-III oxide surfaces were achieved by molecular beam epitaxy. Periodic out-of-plane dipole moment of substrates was revealed to play a dominant role in the formation of metastable oxide structures. Under near-equilibrium epitaxial conditions, this dipole moment was found to drive the over-grown MgO to inherit the out-of-plane substrate lattice, resulting in some new structures with different stacking sequences and bonding configurations from those of thermodynamically stable phase. As typical cases, by adopting the substrate dipole moment along the growth direction, MgO overlayers with metastable wurtzite (WZ) and stacking-fault (SF) structures were formed on alpha-Al2O3 (0001) and MgAl2O4(111) surfaces, respectively. (c) 2008 Elsevier B.V. All rights reserved.
语种	英语 ; 英语
出版者	ELSEVIER SCIENCE BV ; AMSTERDAM ; PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/81414]
专题	清华大学
推荐引用方式 GB/T 7714	Yuan, H. T.,Liu, Y. Z.,Zeng, Z. Q.,et al. Formation of metastable MgO structures on type-III oxide surfaces: Effect of periodic out-of-plane electric dipole moment of substrates[J],2010, 2010.
APA	Yuan, H. T..,Liu, Y. Z..,Zeng, Z. Q..,Mei, Z. X..,Guo, Y..,...&Xue, Q. K..(2010).Formation of metastable MgO structures on type-III oxide surfaces: Effect of periodic out-of-plane electric dipole moment of substrates..
MLA	Yuan, H. T.,et al."Formation of metastable MgO structures on type-III oxide surfaces: Effect of periodic out-of-plane electric dipole moment of substrates".(2010).

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