Fig. 1 Relaxation map of the Ni80P20 MG. The plot shows the α-relaxation time determined from ISF and MD-DMS (dynamical mechanical spectroscopy), the Johari-Goldstein secondary (β) relaxation time, and the most probable relaxation time of string-like motions as functions of temperature (top axis) and reciprocal temperature (bottom axis). VFT, Vogel-Fulcher-Tammann; CM, coupling model.
Fig. 2 String-like atomic motion in the Ni80P20 MG. (A) Probability density function p(u, δt) of atomic displacements at T = 440 K for different time intervals δt as indicated above. (B) Pair distribution function g(r) for T = 440 K. (C) Two-dimensional vector field of atomic displacements at T = 440 K and δt = 100 ns. Red (blue) vectors are for those displacement magnitudes larger (smaller) than 1.8 Å. (D) Typical 3D string-like configurations from simulations.
Fig. 4 The β relaxation as revealed by MD-DMS. (A to D) Loss modulus E″ of the Ni80P20 MG at testing periods tω = 100 ns (A), 30 ns (B), 10 ns (C), and 3 ns (D). (E) A schematic illustration of the atomic structure and rearrangement of an MG-based cooperative shear model. (F) The corresponding potential energy as a function of atomic displacements.
Supplementary Materials
Supplementary material for this article is available at http://advances.sciencemag.org/cgi/content/full/3/11/e1701577/DC1
fig. S1. Properties change during quenching of the Ni80P20 MG.
fig. S2. Intermediate scattering function.
fig. S3. Typical string-like configurations.
fig. S4. Coordination analysis.
fig. S5. Typical single atomic trajectories at T = 440 K and the duration of the observation time t = 1000 ns for three single atoms.
Additional Files
Supplementary Materials
This PDF file includes:
- fig. S1. Properties change during quenching of the Ni80P20 MG.
- fig. S2. Intermediate scattering function.
- fig. S3. Typical string-like configurations.
- fig. S4. Coordination analysis.
- fig. S5. Typical single atomic trajectories at T = 440 K and the duration of the observation time t = 1000 ns for three single atoms.
Files in this Data Supplement:
- fig. S1. Properties change during quenching of the Ni80P20 MG.
