Memory Effect Manifested by a Boson Peak in Metallic Glass

P. Luo, Y. Z. Li, H. Y. Bai, P. Wen, and W. H. Wang
Phys. Rev. Lett. 116, 175901 – Published 27 April 2016
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Abstract

We explore the correlation between a boson peak and structural relaxation in a typical metallic glass. Consistent with enthalpy recovery, a boson peak shows a memory effect in an aging-and-scan procedure. Single-step isothermal aging produces a monotonic decrease of enthalpy and boson peak intensity; for double-step isothermal aging, both enthalpy and boson peak intensity experience, coincidently, an incipient increase to a maximum and a subsequent decrease toward the equilibrium state. Our results indicate a direct link between slow structural relaxation and fast boson peak dynamics, which presents a profound understanding of the two dynamic behaviors in glass.

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  • Received 1 December 2015

DOI:https://doi.org/10.1103/PhysRevLett.116.175901

© 2016 American Physical Society

Physics Subject Headings (PhySH)

  1. Physical Systems
Condensed Matter, Materials & Applied Physics

Authors & Affiliations

P. Luo, Y. Z. Li, H. Y. Bai, P. Wen*, and W. H. Wang

  • Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China

  • *Corresponding author. pwen@iphy.ac.cn
  • Corresponding author. whw@iphy.ac.cn

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Issue

Vol. 116, Iss. 17 — 29 April 2016

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