Universal Medium-Range Order of Amorphous Metal Oxides

被引：25

作者：

Nishio, Kengo ^{[1
]}

Miyazaki, Takehide ^{[1
]}

Nakamura, Hisao ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, RICS, Nanosyst Res Inst, Tsukuba, Ibaraki 3058568, Japan

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 15期

关键词：

RANDOM PACKINGS; SIMPLE LIQUIDS; GEOMETRY;

D O I：

10.1103/PhysRevLett.111.155502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose that the structure of amorphous metal oxides can be regarded as a dual-dense-random-packing structure, which is a superposition of the dense random packing of metal atoms and that of oxygen atoms. Our ab initio molecular dynamics simulations show that the medium-range order of amorphous HfO2, ZrO2, TiO2, In2O3, Ga2O3, Al2O3;, and Cu2O is characterized by the pentagonal-bipyramid arrangement of metal atoms and that of oxygen atoms, and prove the validity of our dual-random-sphere-packing model. In other words, we find that the pentagonal medium-range order is universal independent of type of metal oxide.

引用

页数：4

共 50 条

[21] Nanoporous Structure and Medium-Range Order in Synthetic Amorphous Calcium Carbonate
Goodwin, Andrew L.
Michel, F. Marc
Phillips, Brian L.
Keen, David A.
Dove, Martin T.
Reeder, Richard J.
[J]. CHEMISTRY OF MATERIALS, 2010, 22 (10) : 3197 - 3205
[22] Icosahedral clustering with medium-range order and local elastic properties of amorphous metals
Wakeda, M.
Shibutani, Y.
[J]. ACTA MATERIALIA, 2010, 58 (11) : 3963 - 3969
[23] Medium-range order and optoelectronic properties of a tetrahedrally coordinated hydrogenated amorphous semiconductor
O. A. Golikova
[J]. Semiconductors, 2001, 35 : 1314 - 1319
[24] Medium-range order and optoelectronic properties of a tetrahedrally coordinated hydrogenated amorphous semiconductor
Golikova, OA
[J]. SEMICONDUCTORS, 2001, 35 (11) : 1314 - 1319
[25] MEDIUM-RANGE ORDER IN THE SCIENTIFIC COURT
PHILLIPS, JC
[J]. PHYSICS TODAY, 1989, 42 (06) : 115 - 115
[26] Medium-range order structure and fragility of superheated melts of amorphous CuHf alloys
Bian Xiu-Fang
Sun Bao-An
Hu Li-Na
[J]. CHINESE PHYSICS LETTERS, 2006, 23 (07) : 1864 - 1867
[27] Medium-range order and crystallization in amorphous Al-Ni-Pr alloys
Zhou, JK
Bian, XF
Wang, WM
Xue, XY
Wang, SH
Zhao, Y
Yin, KB
[J]. MATERIALS LETTERS, 2004, 58 (20) : 2559 - 2563
[28] Medium-range order as an intrinsic property of Co-rich amorphous alloys
FdezGubieda, ML
GarciaArribas, A
Orue, I
Plazaola, F
Barandiaran, JM
[J]. EUROPHYSICS LETTERS, 1997, 40 (01): : 43 - 48
[29] Hidden structure in the medium-range order of amorphous zirconia-tantala films
Mishkin, Alec
Jiang, Jun
Zhang, Rui
Cheng, Hai-Ping
Prasai, Kiran
Bassiri, Riccardo
Fejer, Martin
[J]. PHYSICAL REVIEW B, 2023, 108 (05)
[30] SHORT-RANGE AND MEDIUM-RANGE ORDER IN AMORPHOUS RARE-EARTH IRON GARNETS
GIRNUS, W
BEUTHIEN, H
PRIESS, R
GUNSSER, W
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1986, 54-7 : 225 - 226

← 1 2 3 4 5 →