Features of relaxation modes in soft magnetic metallic glasses and their correlation with magnetic ordering

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

2 Scopus Citations
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  • Si Lan
  • Lina Hu
  • Zhenduo Wu
  • Yaqiang Dong


Original languageEnglish
Article number122087
Journal / PublicationJournal of Non-Crystalline Solids
Online published21 Dec 2022
Publication statusPublished - 15 Feb 2023


Although the anneal-induced relaxation process of Fe-based metallic glasses has been widely reported, there is a lack of a systematic description of the relaxation modes of atoms. In this work, the relaxation modes of FeSiBPC metallic glasses and their relationship with magnetic ordering have been investigated. A two-stage relaxation behavior has been observed, and the pinning effect of Curie temperature is found in the first stage. The short-range ordering involved in the β relaxation in the first stage is confined and facilitated by magnetic ordering. It causes a smaller Eβ compared to that of non-magnetic metallic glasses. In the second stage, the pinning effect disappears. It is mainly the medium-range rearrangements involved in α relaxation that begins to yield the influence on magnetic ordering. This work uncovers the inner magnet-influenced β relaxation in Fe-based metallic glasses and provides insights into the interaction between structural arrangement during relaxation and magnetic ordering.

Research Area(s)

  • In-situ high-energy synchrotron X-ray diffraction, Magnetic ordering, Metallic glass, Relaxation modes