Origin of boson peak in glasses: Role of Ioffe-Regel crossover and atomic soft modes

被引：3

作者：

Klinger, Michael I. ^{[1
]}

机构：

[1] Bar Ilan Univ, Dept Phys, IL-52900 Tel Aviv, Israel

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2007年 / 353卷 / 18-21期

关键词：

glasses; nitride glasses; infrared glasses; chalcogenides; oxide glasses; alkali silicates; borates; thermal properties; thermal conductivity;

D O I：

10.1016/j.jnoncrysol.2007.01.050

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A theoretical 'complete soft-mode-dynamics' model of the origin and properties of the boson peak accompanied by a high-frequency sound, observed in glasses of a certain type, is described. The origin is determined by interaction of non-acoustic vibrations with acoustic phonons and a loffe-Regel crossover for their inelastic scattering. The non-acoustic excitations are associated with vibrations of atomic soft-mode 'defects'. Two types of boson peak can be predicted in agreement with experiments. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：1824 / 1827

页数：4

共 47 条

[21] Microscopic buckling as an origin of the boson peak in network glasses
Nakayama, T
PHYSICA B-CONDENSED MATTER, 2002, 316 : 497 - 499
[22] The origin of the boson peak in network-forming glasses
Nakayama, T
Sato, N
JOURNAL OF PHYSICS-CONDENSED MATTER, 1998, 10 (02) : L41 - L47
[23] Heterogeneous shear elasticity of glasses: the origin of the boson peak
Marruzzo, Alessia
Schirmacher, Walter
Fratalocchi, Andrea
Ruocco, Giancarlo
SCIENTIFIC REPORTS, 2013, 3
[24] Heterogeneous shear elasticity of glasses: the origin of the boson peak
Alessia Marruzzo
Walter Schirmacher
Andrea Fratalocchi
Giancarlo Ruocco
Scientific Reports, 3
[25] Soft-mode related origin of the boson peak and acoustic-phonon broadening in glasses
M. I. Klinger
Theoretical and Mathematical Physics, 2008, 154 : 64 - 74
[26] Soft-mode related origin of the boson peak and acoustic-phonon broadening in glasses
Klinger, M. I.
THEORETICAL AND MATHEMATICAL PHYSICS, 2008, 154 (01) : 64 - 74
[27] Interstitial resonance modes as a source of the boson peak in glasses and liquids
Granato, AV
PHYSICA B-CONDENSED MATTER, 1996, 219-20 : 270 - 272
[28] Strongly localized modes as the origin of the Bose peak in glasses
Nakayama, T
PHYSICA B-CONDENSED MATTER, 1999, 263 : 243 - 247
[29] Boson peak and hybridization of acoustic modes with vibrations of nanometric heterogeneities in glasses
Duval, E.
Mermet, A.
Saviot, L.
PHYSICAL REVIEW B, 2007, 75 (02)
[30] Universality of stringlet excitations as the origin of the boson peak of glasses with isotropic interactions
Hu, Yuan-Chao
Tanaka, Hajime
PHYSICAL REVIEW RESEARCH, 2023, 5 (02):

← 1 2 3 4 5 →