Pressure-induced cation-cation bonding in
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
- Univ. of Nevada, Las Vegas, NV (United States); Carnegie Inst. of Washington, Argonne, IL (United States); University of Nevada, Las Vegas
- Univ. of Nevada and High Pressure Science and Engineering Center (HiPSEC), Las Vegas, NV (United States)
- Univ. of Glasgow, Glasgow (United Kingdom)
- Carnegie Inst. of Washington, Argonne, IL (United States)
A pressure-induced phase transition, associated with the formation of cation-cation bonding, occurs in V2O3 by combining synchroton x-ray diffraction in a diamond anvil cell and ab initio evolutionary calculations. The high-pressure phase has a monoclinic structure with a C2/c space group, and it is both energetically and dynamically stable at pressures above 47 GPa to at least 105 GPa. this phase transition can be viewed as a two-dimensional Peierls-like distortion, where the cation-cation dimer chains are connected along the c axis of the monoclinic cell. In conclusion, this finding provides insights into the interplay of electron correlation and lattice distortion in V2O3, and it may also help to understand novel properties of other early transition-metal oxides.
- Research Organization:
- Univ. of Nevada, Las Vegas, NV (United States)
- Sponsoring Organization:
- USDOE; USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC02-06CH11357; FG02-99ER45775; NA0001974; NA0001982
- OSTI ID:
- 1332787
- Alternate ID(s):
- OSTI ID: 1223338
OSTI ID: 1224482
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 13 Vol. 92; ISSN 1098-0121; ISSN PRBMDO
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
A review of Raman spectroscopy of vanadium oxides
|
journal | May 2019 |
High-pressure studies with x-rays using diamond anvil cells
|
journal | November 2016 |
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