Crossref journal-article
Proceedings of the National Academy of Sciences
Proceedings of the National Academy of Sciences (341)
Abstract

In situ high-pressure x-ray diffraction, low-temperature resistivity, and magnetization experiments were performed on a La 32 Ce 32 Al 16 Ni 5 Cu 15 bulk metallic glass (BMG). A sudden change in compressibility at ≈14 GPa and a rapid increase of resistivity at ≈12 K were detected, whereas magnetic phase transformation and magnetic field dependence of the low-temperature resistivity do not occur at temperatures down to 4.2 K. An interaction between conduction electrons and the two-level systems is suggested to explain the temperature and field dependences of resistivity of the BMG alloy. Although the cause of the unusual change in compressibility at ≈14 GPa is not clear, we believe that it could be linked with the unique electron structure of cerium in the amorphous matrix. An electronic phase transition in BMG alloys, most likely a second-order amorphous-to-amorphous phase transition, is suggested.

Bibliography

Zeng, Q. S., Li, Y. C., Feng, C. M., Liermann, P., Somayazulu, M., Shen, G. Y., Mao, H. -k., Yang, R., Liu, J., Hu, T. D., & Jiang, J. Z. (2007). Anomalous compression behavior in lanthanum/cerium-based metallic glass under high pressure. Proceedings of the National Academy of Sciences, 104(34), 13565–13568.

Authors 11
  1. Q. S. Zeng (first)
  2. Y. C. Li (additional)
  3. C. M. Feng (additional)
  4. P. Liermann (additional)
  5. M. Somayazulu (additional)
  6. G. Y. Shen (additional)
  7. H.-k. Mao (additional)
  8. R. Yang (additional)
  9. J. Liu (additional)
  10. T. D. Hu (additional)
  11. J. Z. Jiang (additional)
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Dates
Type When
Created 18 years ago (Aug. 14, 2007, 11:13 p.m.)
Deposited 3 years, 4 months ago (April 12, 2022, 4:26 p.m.)
Indexed 11 months, 3 weeks ago (Sept. 13, 2024, 4:09 p.m.)
Issued 18 years ago (Aug. 21, 2007)
Published 18 years ago (Aug. 21, 2007)
Published Online 18 years ago (Aug. 21, 2007)
Published Print 18 years ago (Aug. 21, 2007)
Funders 0

None

@article{Zeng_2007, title={Anomalous compression behavior in lanthanum/cerium-based metallic glass under high pressure}, volume={104}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.0705999104}, DOI={10.1073/pnas.0705999104}, number={34}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Zeng, Q. S. and Li, Y. C. and Feng, C. M. and Liermann, P. and Somayazulu, M. and Shen, G. Y. and Mao, H.-k. and Yang, R. and Liu, J. and Hu, T. D. and Jiang, J. Z.}, year={2007}, month=aug, pages={13565–13568} }