This title appears in the Scientific Report :
2008
Please use the identifier:
http://dx.doi.org/10.1080/14786430802477976 in citations.
An atomic mechanism for the boson peak in metallic glasses
An atomic mechanism for the boson peak in metallic glasses
The boson peak in metallic glasses is modelled in terms of local structural shear rearrangements. Using Eshelby's solution of the corresponding elasticity theory problem, one can calculate the saddle point energy of such a structural rearrangement. The neighborhood of the saddle point gives ris...
Saved in:
Personal Name(s): | Buchenau, U. |
---|---|
Schober, H.R. | |
Contributing Institute: |
Theorie der Strukturbildung; IFF-3 Neutronenstreuung; IFF-5 |
Published in: |
Philosophical magazine |
Imprint: |
London [u.a.]
Taylor and Francis
2008
|
DOI: |
10.1080/14786430802477976 |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie |
Series Title: |
Philosophical Magazine
88 |
Subject (ZB): | |
Publikationsportal JuSER |
The boson peak in metallic glasses is modelled in terms of local structural shear rearrangements. Using Eshelby's solution of the corresponding elasticity theory problem, one can calculate the saddle point energy of such a structural rearrangement. The neighborhood of the saddle point gives rise to soft resonant vibrational modes. One can calculate their density, their kinetic energy, their fourth-order potential term and their coupling to longitudinal and transverse sound waves. |