6533b855fe1ef96bd12afe75

RESEARCH PRODUCT

High Pressure Raman, Optical Absorption, and Resistivity Study of SrCrO4

Marco BettinelliDaniel ErrandoneaJames HamlinJohn E. ProctorJohn E. ProctorM. A. HakeemDaniel Jackson

subject

Phase transitionPHASE-TRANSITION MCRO4 M PHOTOCATALYTIC PROPERTIESCondensed matter physicsChemistry02 engineering and technologyMCRO4 MConductivity021001 nanoscience & nanotechnology01 natural sciencesInorganic ChemistryPressure rangesymbols.namesakeElectrical resistivity and conductivityHigh pressurePHOTOCATALYTIC PROPERTIES0103 physical sciencesPHASE-TRANSITIONsymbolsPhysical and Theoretical ChemistryAbsorption (chemistry)010306 general physics0210 nano-technologyRaman spectroscopyChemical decomposition

description

We studied the electronic and vibrational properties of monazite-type SrCrO4 under compression. The study extended the pressure range of previous studies from 26 to 58 GPa. The existence of two previously reported phase transitions was confirmed at 9 and 14 GPa, and two new phase transitions were found at 35 and 48 GPa. These transitions involve several changes in the vibrational and transport properties with the new high-pressure phases having a conductivity lower than that of the previously known phases. No evidence of chemical decomposition or metallization of SrCrO4 was detected. A tentative explanation for the reported observations is discussed.

https://doi.org/10.1021/acs.inorgchem.8b00268