Charge compensation by long-period reconstruction in strongly polar lithium niobate surfaces

被引：25

作者：

Sanna, S. ^{[1
]}

Rode, S. ^{[2
]}

Hoelscher, R. ^{[1
]}

Klassen, S. ^{[2
]}

Marutschke, C. ^{[2
]}

Kobayashi, K. ^{[3
]}

Yamada, H. ^{[3
]}

Schmidt, W. G. ^{[1
]}

Kuehnle, A. ^{[2
]}

机构：

[1] Univ Paderborn, Lehrstuhl Theoret Phys, D-33095 Paderborn, Germany

[2] Johannes Gutenberg Univ Mainz, Fachbereich Chem, Inst Phys Chem, D-55099 Mainz, Germany

[3] Kyoto Univ, Dept Elect Sci & Engn, Nishikyo Ku, Kyoto 6158510, Japan

来源：

PHYSICAL REVIEW B | 2013年 / 88卷 / 11期

关键词：

POLARIZATION; SCATTERING; LINBO3;

D O I：

10.1103/PhysRevB.88.115422

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microscopic structure of the polar (000 (1) over bar) and (0001) surfaces of lithium niobate is investigated by atomic-resolution frequency modulation atomic force microscopy and first-principles calculations. It is found that the surface reconstructs at annealing temperatures sufficiently high to drive off external adsorbates. In particular a (root 7 x root 7)R19.1 degrees reconstruction is found for the (000 (1) over bar) surface. Density-functional theory calculations show that-apart from the (root 7 x root 7)-a series of adatom-induced surface reconstructions exist that lower the surface energy and reduce the surface charge.

引用

页数：5

共 33 条

[1] Bose-Einstein Condensation of Erbium [J].

Aikawa, K. ;

Frisch, A. ;

Mark, M. ;

Baier, S. ;

Rietzler, A. ;

Grimm, R. ;

Ferlaino, F. .

PHYSICAL REVIEW LETTERS, 2012, 108 (21)

[2]

[Anonymous], 1990, ATOMS MOL QUANTUM TH

[3]

Castell MR, 2002, SURF SCI, V505, P1, DOI 10.1016/S0039-6028(02)01393-6

[4] Novel stabilization mechanism on polar surfaces: ZnO(0001)-Zn [J].

Dulub, O ;

Diebold, U ;

Kresse, G .

PHYSICAL REVIEW LETTERS, 2003, 90 (01) :4-016102

[5] Ferroelectric Thin Films in Fluidic Environments: A New Interface for Sensing and Manipulation of Matter [J].

Ferris, Robert ;

Yellen, Benjamin ;

Zauscher, Stefan .

SMALL, 2012, 8 (01) :28-35

[6] The effect of ferroelectric polarization on the interaction of water and methanol with the surface of LiNbO3(0001) [J].

Garra, J. ;

Vohs, J. M. ;

Bonnell, D. A. .

SURFACE SCIENCE, 2009, 603 (08) :1106-1114

[7] Polarity of oxide surfaces and nanostructures [J].

Goniakowski, Jacek ;

Finocchi, Fabio ;

Noguera, Claudine .

REPORTS ON PROGRESS IN PHYSICS, 2008, 71 (01)

[8]

Huang S., 2011, ADV MAT, V24, pOP42

[9] Quantitative measurement of the surface charge density [J].

Johann, Florian ;

Soergel, Elisabeth .

APPLIED PHYSICS LETTERS, 2009, 95 (23)

[10] Detection mechanism for ferroelectric domain boundaries with lateral force microscopy [J].

Jungk, Tobias ;

Hoffmann, Akos ;

Soergel, Elisabeth .

APPLIED PHYSICS LETTERS, 2006, 89 (04)

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