Structure of Amorphous Aluminum Oxide

被引：205

作者：

Lee, Sung Keun ^{[1
]}

Lee, Sung Bo ^{[2
]}

Park, Sun Young ^{[1
]}

Yi, Yoo Soo ^{[1
]}

Ahn, Chi Won ^{[3
]}

机构：

[1] Seoul Natl Univ, Sch Earth & Environm Sci, Seoul 151742, South Korea

[2] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 151742, South Korea

[3] Korea Adv Inst Sci & Technol, Natl Nanofab Ctr, Taejon 305806, South Korea

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

HIGH-PRESSURE; NMR; GLASSES; DYNAMICS; ALUMINOSILICATE; SCATTERING; NIAL(110); SURFACES; LIQUIDS; FILMS;

D O I：

10.1103/PhysRevLett.103.095501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Whereas prototypical Al(2)O(3) is not a glass former, amorphous Al(2)O(3) can be formed as thin films through vapor deposition and can serve as a structural model for the Al(2)O(3) glass. The first two-dimensional solid-state NMR experiments for amorphous Al(2)O(3) thin film reveal that four- and five-coordinated species are predominant (95%), while six-coordinated species are minor. Such a species distribution is remarkably similar to what has been predicted theoretically for Al(2)O(3) melts. Upon annealing to 800 degrees C the five-coordinated species becomes negligible, indicating the onset of crystallization of Al(2)O(3).

引用

页数：4

共 28 条

[1] Structure of liquid aluminum oxide [J].

Ansell, S ;

Krishnan, S ;

Weber, JKR ;

Felten, JJ ;

Nordine, PC ;

Beno, MA ;

Price, DL ;

Saboungi, ML .

PHYSICAL REVIEW LETTERS, 1997, 78 (03) :464-466

[2] Triple-quantum two-dimensional Al-27 magic-angle spinning nuclear magnetic resonance spectroscopic study of aluminosilicate and aluminate crystals and glasses [J].

Baltisberger, JH ;

Xu, Z ;

Stebbins, JF ;

Wang, SH ;

Pines, A .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (30) :7209-7214

[3] Imaging the atomic arrangements on the high-temperature reconstructed α-Al2O3(0001) surface [J].

Barth, C ;

Reichling, M .

NATURE, 2001, 414 (6859) :54-57

[4] INTERFACE-CONTROLLED PHASE-TRANSFORMATION AND ABNORMAL GRAIN-GROWTH OF ALPHA-AL2O3 IN THIN GAMMA-ALUMINA FILMS [J].

CHOU, TC ;

NIEH, TG .

THIN SOLID FILMS, 1992, 221 (1-2) :89-97

[5] MICROSTRUCTURAL EVOLUTION AND PROPERTIES OF NANOCRYSTALLINE ALUMINA MADE BY REACTIVE SPUTTERING DEPOSITION [J].

CHOU, TC ;

ADAMSON, D ;

MARDINLY, J ;

NIEH, TG .

THIN SOLID FILMS, 1991, 205 (02) :131-139

[6] LEWIS-ACID SITES AND SURFACE ALUMINUM IN ALUMINAS AND ZEOLITES - A HIGH-RESOLUTION NMR-STUDY [J].

COSTER, D ;

BLUMENFELD, AL ;

FRIPIAT, JJ .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (24) :6201-6211

[7] A MAS NMR-STUDY OF THE STRUCTURE OF AMORPHOUS ALUMINA FILMS [J].

DUPREE, R ;

FARNAN, I ;

FORTY, AJ ;

ELMASHRI, S ;

BOTTYAN, L .

JOURNAL DE PHYSIQUE, 1985, 46 (C-8) :113-117

[8] STRUCTURAL CHEMISTRY OF ANODIC ALUMINA [J].

FARNAN, I ;

DUPREE, R ;

JEONG, Y ;

THOMPSON, GE ;

WOOD, GC ;

FORTY, AJ .

THIN SOLID FILMS, 1989, 173 (02) :209-215

[9] Ultrathin oxides: Bulk-oxide-like model surfaces or unique films? [J].

Freysoldt, Christoph ;

Rinke, Patrick ;

Scheffler, Matthias .

PHYSICAL REVIEW LETTERS, 2007, 99 (08)

[10] ISOTROPIC SPECTRA OF HALF-INTEGER QUADRUPOLAR SPINS FROM BIDIMENSIONAL MAGIC-ANGLE-SPINNING NMR [J].

FRYDMAN, L ;

HARWOOD, JS .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1995, 117 (19) :5367-5368

← 1 2 3 →