EXTENSION OF EQUILIBRIUM CONCEPTS TO NON-EQUILIBRIUM IN GLASSY CHALCOGENIDES: NUMERICAL SIMULATIONS IN THE COULOMB GLASS MODEL

被引：0

作者：

Caravaca, M. ^{[1
]}

Gimeno, F. ^{[1
]}

Meseguer-Valdenebro, J. L. ^{[2
]}

机构：

[1] Spanish Air Force Acad, Univ Ctr Def, Base Aerea San Javier, Murcia, Spain

[2] Tech Univ Madrid, Sch Mech Engn, Dept Appl Phys & Mat Engn, Madrid 28006, Spain

来源：

CHALCOGENIDE LETTERS | 2015年 / 12卷 / 05期

关键词：

Glassy chalcogenides; Amorphous semiconductors; Coulomb glasses; Numerical simulations; density of states; Fluctuation-dissipation theorem; RELAXATION; TRANSITION; DYNAMICS; SYSTEMS; GAP;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, we investigate the generalization of some equilibrium properties of the Coulomb glass model to characterize the thermal behavior of glassy chalcogenides out of equilibrium. Concretely, we focus on the minimum of the one-particle density of states and the fluctuation-dissipation theorem. The former can be employed as a good thermometer out of equilibrium while the latter reveals the existence of more than one temperature in glassy chalcogenides. The approaches applied in this work are suitable to explore the nature as well as the thermal properties of other glassy systems, such as spin glasses.

引用

页码：227 / 236

页数：10

共 23 条

[1] NONEQUILIBRIUM TRANSPORT AND SLOW RELAXATION IN HOPPING CONDUCTIVITY [J].

BENCHORIN, M ;

OVADYAHU, Z ;

POLLAK, M .

PHYSICAL REVIEW B, 1993, 48 (20) :15025-15034

[2]

Caravaca M, 2014, CHALCOGENIDE LETT, V11, P287

[3] Nonlinear conductivity of two-dimensional Coulomb glasses [J].

Caravaca, M. ;

Somoza, A. M. ;

Ortuno, M. .

PHYSICAL REVIEW B, 2010, 82 (13)

[4]

Caravaca M., 2010, THESIS U MURCIA

[5]

Chandler D., 1987, Introduction to Modern Statistical Physics

[6] Energy flow, partial equilibration, and effective temperatures in systems with slow dynamics [J].

Cugliandolo, LF ;

Kurchan, J ;

Peliti, L .

PHYSICAL REVIEW E, 1997, 55 (04) :3898-3914

[7] Dielectric susceptibility of the Coulomb glass [J].

Díaz-Sánchez, A ;

Ortuño, M ;

Pollak, M ;

Pérez-Garrido, A ;

Möbius, A .

PHYSICAL REVIEW B, 1999, 59 (02) :910-914

[8]

Diaz-Sanchez A, 1998, PHYS STATUS SOLIDI B, V205, P17, DOI 10.1002/(SICI)1521-3951(199801)205:1<17::AID-PSSB17>3.0.CO

[9]

2-2

[10] Simultaneous γ(Co60)-quanta irradiation and isothermal annealing-induced insulator-metal transition in a-As4Se4Te2 chalcogenide composition [J].

El-Hakim, S. A. ;

Morsy, M. A. .

RADIATION EFFECTS AND DEFECTS IN SOLIDS, 2014, 169 (04) :313-324

← 1 2 3 →