Phonon triggered rhombohedral lattice distortion in vanadium at high pressure
Abstract
In spite of the simple body-centered-cubic crystal structure, the elements of group V, vanadium, niobium and tantalum, show strong interactions between the electronic properties and lattice dynamics. Further, these interactions can be tuned by external parameters, such as pressure and temperature. We used inelastic x-ray scattering to probe the phonon dispersion of single-crystalline vanadium as a function of pressure to 45 GPa. Our measurements show an anomalous high-pressure behavior of the transverse acoustic mode along the (100) direction and a softening of the elastic modulus C44 that triggers a rhombohedral lattice distortion occurring between 34 and 39 GPa. Lastly, our results provide the missing experimental confirmation of the theoretically predicted shear instability arising from the progressive intra-band nesting of the Fermi surface with increasing pressure, a scenario common to all transition metals of group V.
- Authors:
-
- Sorbonne Univ. - UPMC, Paris (France)
- Univ. of California, Santa Cruz, CA (United States)
- European Synchrotron Radiation Facility, Grenoble (France)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1346134
- Report Number(s):
- LLNL-JRNL-694082
Journal ID: ISSN 2045-2322
- Grant/Contract Number:
- AC52-07NA27344
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scientific Reports
- Additional Journal Information:
- Journal Volume: 6; Journal Issue: 1; Journal ID: ISSN 2045-2322
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; electronic properties and materials; phase transitions and critical phenomena; structure of solids and liquids
Citation Formats
Antonangeli, Daniele, Farber, Daniel L., Bosak, Alexei, Aracne, Chantel M., Ruddle, David G., and Krisch, Michael. Phonon triggered rhombohedral lattice distortion in vanadium at high pressure. United States: N. p., 2016.
Web. doi:10.1038/srep31887.
Antonangeli, Daniele, Farber, Daniel L., Bosak, Alexei, Aracne, Chantel M., Ruddle, David G., & Krisch, Michael. Phonon triggered rhombohedral lattice distortion in vanadium at high pressure. United States. https://doi.org/10.1038/srep31887
Antonangeli, Daniele, Farber, Daniel L., Bosak, Alexei, Aracne, Chantel M., Ruddle, David G., and Krisch, Michael. Fri .
"Phonon triggered rhombohedral lattice distortion in vanadium at high pressure". United States. https://doi.org/10.1038/srep31887. https://www.osti.gov/servlets/purl/1346134.
@article{osti_1346134,
title = {Phonon triggered rhombohedral lattice distortion in vanadium at high pressure},
author = {Antonangeli, Daniele and Farber, Daniel L. and Bosak, Alexei and Aracne, Chantel M. and Ruddle, David G. and Krisch, Michael},
abstractNote = {In spite of the simple body-centered-cubic crystal structure, the elements of group V, vanadium, niobium and tantalum, show strong interactions between the electronic properties and lattice dynamics. Further, these interactions can be tuned by external parameters, such as pressure and temperature. We used inelastic x-ray scattering to probe the phonon dispersion of single-crystalline vanadium as a function of pressure to 45 GPa. Our measurements show an anomalous high-pressure behavior of the transverse acoustic mode along the (100) direction and a softening of the elastic modulus C44 that triggers a rhombohedral lattice distortion occurring between 34 and 39 GPa. Lastly, our results provide the missing experimental confirmation of the theoretically predicted shear instability arising from the progressive intra-band nesting of the Fermi surface with increasing pressure, a scenario common to all transition metals of group V.},
doi = {10.1038/srep31887},
journal = {Scientific Reports},
number = 1,
volume = 6,
place = {United States},
year = {Fri Aug 19 00:00:00 EDT 2016},
month = {Fri Aug 19 00:00:00 EDT 2016}
}
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Works referencing / citing this record:
Pressure effect on Kohn anomaly and electronic topological transition in single-crystal tantalum
journal, August 2019
- Zhang, Youjun; Yang, Chao; Alatas, Ahmet
- Physical Review B, Vol. 100, Issue 7
Melting curve and phase diagram of vanadium under high-pressure and high-temperature conditions
journal, September 2019
- Errandonea, D.; MacLeod, S. G.; Burakovsky, L.
- Physical Review B, Vol. 100, Issue 9
Kohn Anomaly and Phase Stability in Group VB Transition Metals
journal, March 2018
- Landa, Alexander; Söderlind, Per; Naumov, Ivan
- Computation, Vol. 6, Issue 2