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Updated: Feb 8, 2026
07:26
Synthesis and Microdiffraction at Extreme Pressures and Temperatures
Published on: October 7, 2013
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High Pressure Raman, Optical Absorption, and Resistivity Study of SrCrO4
Malik A Hakeem1, Daniel E Jackson2, James J Hamlin2
1School of Computing, Science and Engineering , University of Salford , Manchester M5 4WT , United Kingdom.
Inorganic Chemistry
|June 22, 2018
Summary
Strontium chromate (SrCrO4) under high pressure exhibits new phase transitions, altering its conductivity. This study expands pressure ranges, revealing novel high-pressure behaviors without decomposition or metallization.
Area of Science:
- Solid State Physics
- Materials Science
- High-Pressure Physics
Background:
- Monazite-type strontium chromate (SrCrO4) is a material with interesting electronic and vibrational properties.
- Previous studies investigated SrCrO4 under compression, identifying specific phase transitions.
Purpose of the Study:
- To investigate the electronic and vibrational properties of monazite-type SrCrO4 under extended high-pressure conditions.
- To identify and characterize new phase transitions in SrCrO4 beyond previously reported ranges.
Main Methods:
- Experimental study of SrCrO4 under compression up to 58 GPa.
- Analysis of electronic and vibrational properties, including conductivity measurements.
- Confirmation of known phase transitions and identification of new ones.
Main Results:
- Confirmed phase transitions at 9 and 14 GPa.
- Discovered two new phase transitions at 35 and 48 GPa.
- Observed changes in vibrational and transport properties, with new high-pressure phases showing lower conductivity.
Conclusions:
- SrCrO4 undergoes multiple phase transitions under high pressure, extending to 58 GPa.
- The new high-pressure phases exhibit reduced conductivity compared to lower-pressure phases.
- No evidence of chemical decomposition or metallization was found within the studied pressure range.
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