Activation-energy spectrum and structural relaxation dynamics of amorphous silicon

1993 ◽  
Vol 48 (9) ◽  
pp. 5964-5972 ◽  
Author(s):  
Jung H. Shin ◽  
Harry A. Atwater
Keyword(s):  
Activation Energy ◽  
Energy Spectrum ◽  
Amorphous Silicon ◽  
Structural Relaxation ◽  
Relaxation Dynamics

Determination of the activation energy spectrum of structural relaxation in metallic glasses using calorimetric and shear modulus relaxation data

2014 ◽  
Vol 116 (12) ◽  
pp. 123507 ◽  
Author(s):  
A. N. Tsyplakov ◽  
Yu. P. Mitrofanov ◽  
A. S. Makarov ◽  
G. V. Afonin ◽  
V. A. Khonik
Keyword(s):  
Activation Energy ◽  
Energy Spectrum ◽  
Shear Modulus ◽  
Metallic Glasses ◽  
Structural Relaxation ◽  
Relaxation Data

An Acoustic Study of Irreversible Structural Relaxation in a Bulk Metallic Glass

2006 ◽  
Vol 115 ◽  
pp. 113-120 ◽  
Author(s):  
N.P. Kobelev ◽  
E.L. Kolyvanov ◽  
V.A. Khonik
Keyword(s):  
Heat Treatment ◽  
Activation Energy ◽  
Energy Spectrum ◽  
Shear Modulus ◽  
Structural Relaxation ◽  
Glass Structure ◽  
Torsion Pendulum ◽  
Frequency Range ◽  
Acoustic Study ◽  
Frequency Temperature

Irreversible structural relaxation of bulk amorphous Zr52.5Ti5Cu17.9Ni14.6Al10 was studied by means of logarithmic decrement and shear modulus measurements using an inverse torsion pendulum in the frequency range from 5 Hz to 40 Hz. Irreversible contributions to the decrement and shear modulus and their frequency, temperature, and time dependences were investigated. The activation energy spectrum of irreversible structural relaxation has been reconstructed. It has been shown that irreversible structural relaxation can be regenerated by a special heat treatment. The results obtained are discussed within the framework of a phenomenological model, which implies existence of two-well relaxation centers in the glass structure.

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