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Electrical resistance of single-crystal magnetite (Fe 3 O 4 ) under quasi-hydrostatic pressures up to 100 GPa

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.4945388· OSTI ID:1364599
 [1];  [2];  [3];  [4];  [5]
  1. Carnegie Inst. of Washington, Washington, DC (United States). Geophysical Lab.; Carnegie Institution of Washington
  2. Univ. of North Florida, Jacksonville, FL (United States). Dept. of Physics
  3. Ecole Polytechnique Federale Lausanne (Switzlerland)
  4. Carnegie Inst. of Washington, Washington, DC (United States). Geophysical Lab.; Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  5. Carnegie Inst. of Washington, Washington, DC (United States). Geophysical Lab.
We measured the pressure dependence of electrical resistance of single-crystal magnetite (Fe3O4) under quasi-hydrostatic conditions to 100 GPa using low-temperature, megabar diamond-anvil cell techniques in order to gain insight into the anomalous behavior of this material that has been reported over the years in different high-pressure experiments. The measurements under nearly hydrostatic pressure conditions allowed us to detect the clear Verwey transition and the high-pressure structural phase. Furthermore, the appearance of a metallic ground state after the suppression of the Verwey transition around 20 GPa and the concomitant enhancement of electrical resistance caused by the structural transformation to the high-pressure phase form reentrant semiconducting-metallic-semiconducting behavior, though the appearance of the metallic phase is highly sensitive to stress conditions and details of the measurement technique.
Research Organization:
Carnegie Institution for Science, Washington, DC (United States); Energy Frontier Research Centers (EFRC) (United States). Energy Frontier Research in Extreme Environments (EFree)
Sponsoring Organization:
USDOE; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC52-07NA27344; FG02-02ER45955; FG02-99ER45775; NA0002006; SC0001057
OSTI ID:
1364599
Alternate ID(s):
OSTI ID: 1246184
Journal Information:
Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 13 Vol. 119; ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (34)

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Cited By (4)

A Room‐Temperature Verwey‐type Transition in Iron Oxide, Fe 5 O 6 journal January 2020
A Room‐Temperature Verwey‐type Transition in Iron Oxide, Fe 5 O 6 journal January 2020
Pressure-induced structural and electronic transitions of thiospinel Fe 3 S 4 journal January 2019
High-pressure magnetic, electronic, and structural properties of M F e 2 O 4 ( M = Mg , Zn , Fe ) ferric spinels journal May 2017

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