Thermally induced coloration of KBr at high pressures

Sarah M. Arveson, Boris Kiefer, Jie Deng, Zhenxian Liu, Kanani K.M. Lee

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Laser-heated diamond-anvil cell (LHDAC) experiments reveal electronic changes in KBr at pressures between ∼13-81GPa when heated to high temperatures that cause runaway heating to temperatures in excess of ∼5000K. The drastic changes in absorption behavior of KBr are interpreted as rapid formation of high-pressure F-center defects. The defects are localized to the heated region and thus do not change the long-range crystalline order of KBr. The results have significant consequences for temperature measurements in LHDAC experiments and extend the persistence of F centers in alkali halides to at least 81 GPa.

Original languageEnglish (US)
Article number094103
JournalPhysical Review B
Volume97
Issue number9
DOIs
StatePublished - Mar 9 2018
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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