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Title: Pressure-induced cation-cation bonding in V 2 O 3

Journal Article · · Physical Review. B, Condensed Matter and Materials Physics
 [1];  [2];  [3];  [2];  [2];  [2];  [4];  [4];  [4];  [4]
  1. Univ. of Nevada, Las Vegas, NV (United States); Carnegie Inst. of Washington, Argonne, IL (United States)
  2. Univ. of Nevada and High Pressure Science and Engineering Center (HiPSEC), Las Vegas, NV (United States)
  3. Univ. of Glasgow, Glasgow (United Kingdom)
  4. 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 National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0001982; NA0001974; FG02-99ER45775; AC02-06CH11357; NA001982
OSTI ID:
1332787
Alternate ID(s):
OSTI ID: 1223338
Journal Information:
Physical Review. B, Condensed Matter and Materials Physics, Vol. 92, Issue 13; ISSN 1098-0121
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

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Cited By (2)

High-pressure studies with x-rays using diamond anvil cells journal November 2016
A review of Raman spectroscopy of vanadium oxides journal May 2019

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