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‘Crystal Genes’ in Metallic Liquids and Glasses

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep23734· OSTI ID:1253758
 [1];  [2];  [2];  [2];  [1];  [3];  [4];  [2];  [2];  [2];  [5]
  1. Univ. of Science and Technology of China, Hefei (China). Hefei National Lab. for Physical Sciences at the Microscale and Dept. of Physics; Ames Lab., Ames, IA (United States)
  2. Ames Lab., Ames, IA (United States)
  3. Univ. of Science and Technology of China, Hefei (China). Hefei National Lab. for Physical Sciences at the Microscale and Dept. of Physics
  4. Ames Lab. and Iowa State Univ., Ames, IA (United States). Dept. of Physics
  5. Univ. of Science and Technology of China, Hefei (China). Hefei National Lab. for Physical Sciences at the Microscale, Dept. of Physics and International Center for Quantum Design of Functional Materials (ICQD), and Synergetic Innovation Center of Quantum Information and Quantum Physics; Ames Lab. and Iowa State Univ., Ames, IA (United States). Dept. of Physics

We analyze the underlying structural order that transcends liquid, glass and crystalline states in metallic systems. A genetic algorithm is applied to search for the most common energetically favorable packing motifs in crystalline structures. These motifs are in turn compared to the observed packing motifs in the actual liquid or glass structures using a cluster-alignment method. Using this method, we have revealed the nature of the short-range order in Cu64Zr36 glasses. More importantly, we identified a novel structural order in the Al90Sm10 system. In addition, our approach brings new insight into understanding the origin of vitrification and describing mesoscopic order-disorder transitions in condensed matter systems.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; National Natural Science Foundation of China (NSFC); National Basic Research Program of China
Grant/Contract Number:
AC02-07CH11358; AC02-06CH11357
OSTI ID:
1253758
Report Number(s):
IS-J--8956; srep23734
Journal Information:
Scientific Reports, Journal Name: Scientific Reports Vol. 6; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (13)

Observation of η-Al41Sm5 reveals motif-aware structural evolution in Al-Sm alloys journal April 2019
A scheme for the generation of Fe–P networks to search for low-energy LiFePO 4 crystal structures journal January 2017
Cooling rate dependence of simulated Cu 64.5 Zr 35.5 metallic glass structure journal July 2016
Cooling rate dependence of structural order in Ni 62 Nb 38 metallic glass journal January 2018
Nucleation instability in supercooled Cu–Zr–Al glass-forming liquids journal October 2018
Assessing the utility of structure in amorphous materials journal March 2019
Development of a semi-empirical potential suitable for molecular dynamics simulation of vitrification in Cu-Zr alloys journal December 2019
A comparative study of Sm networks in Al-10 at.%Sm glass and associated crystalline phases journal January 2018
Development of a deep machine learning interatomic potential for metalloid-containing Pd-Si compounds journal November 2019
Structural hierarchy as a key to complex phase selection in Al-Sm journal October 2017
Microstructure evolution during near- T g annealing and its effect on shear banding in model alloys journal December 2019
Cooling rate dependence of simulated ${\rm Cu_{64.5}Zr_{35.5}}$ metallic glass structure text January 2016
Nucleation instability in super-cooled Cu-Zr-Al glass-forming liquids text January 2018

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