Hidden structure in amorphous solids

被引：14

作者：

Inam, F. ^{[1
]}

Lewis, James P. ^{[2
]}

Drabold, D. A. ^{[1
,3
]}

机构：

[1] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA

[2] W Virginia Univ, Dept Phys, Morgantown, WV 26506 USA

[3] Univ Cambridge Trinity Coll, Cambridge CB2 1TQ, England

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2010年 / 207卷 / 03期

关键词：

MODEL;

D O I：

10.1002/pssa.200982877

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Recent theoretical studies of amorphous silicon (a-Si) [Pan et al., Phys. Rev. Lett. 100,206403 (2008)] have revealed subtle but significant structural correlations in network topology: the tendency for short (long) bonds to be spatially correlated with other short (long) bonds). These structures were linked to the electronic band tails in the optical gap. In this paper, we further examine these issues for a-Si, and demonstrate that analogous correlations exist in amorphous SiO2, and in the organic molecule, beta-carotene. We conclude with a discussion of the origin of the effects and its possible generality. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

收藏

页码：599 / 604

页数：6

相关论文

共 14 条

[1] Materials modeling by design: applications to amorphous solids [J].

Biswas, Parthapratim ;

Tafen, D. N. ;

Inam, F. ;

Cai, Bin ;

Drabold, D. A. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2009, 21 (08)

[2] Imaging the two gaps of the high-temperature superconductor Bi2Sr2CuO6+x [J].

Boyer, M. C. ;

Wise, W. D. ;

Chatterjee, Kamalesh ;

Yi, Ming ;

Kondo, Takeshi ;

Takeuchi, T. ;

Ikuta, H. ;

Hudson, E. W. .

NATURE PHYSICS, 2007, 3 (11) :802-806

[3] COMPUTER-MODEL OF TETRAHEDRAL AMORPHOUS DIAMOND [J].

DJORDJEVIC, BR ;

THORPE, MF ;

WOOTEN, F .

PHYSICAL REVIEW B, 1995, 52 (08) :5685-5689

[4] Atomistic structure of band-tail states in amorphous silicon [J].

Dong, JJ ;

Drabold, DA .

PHYSICAL REVIEW LETTERS, 1998, 80 (09) :1928-1931

[5] Topics in the theory of amorphous materials [J].

Drabold, D. A. .

EUROPEAN PHYSICAL JOURNAL B, 2009, 68 (01) :1-21

[6] An intrinsic bond-centered electronic glass with unidirectional domains in underdoped cuprates [J].

Kohsaka, Y. ;

Taylor, C. ;

Fujita, K. ;

Schmidt, A. ;

Lupien, C. ;

Hanaguri, T. ;

Azuma, M. ;

Takano, M. ;

Eisaki, H. ;

Takagi, H. ;

Uchida, S. ;

Davis, J. C. .

SCIENCE, 2007, 315 (5817) :1380-1385

[7] Universal features of localized eigenstates in disordered systems [J].

Ludlam, JJ ;

Taraskin, SN ;

Elliott, SR ;

Drabold, DA .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2005, 17 (30) :L321-L327

[8] Atomistic origin of Urbach tails in amorphous silicon [J].

Pan, Y. ;

Inam, F. ;

Zhang, M. ;

Drabold, D. A. .

PHYSICAL REVIEW LETTERS, 2008, 100 (20)

[9] Topological and topological-electronic correlations in amorphous silicon [J].

Pan, Yue ;

Zhang, Mingliang ;

Drabold, D. A. .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2008, 354 (29) :3480-3485

[10] Self-organized networks and lattice effects in high-temperature superconductors [J].

Phillips, J. C. .

PHYSICAL REVIEW B, 2007, 75 (21)