Pressure-Induced Spin-Crossover in EuFeO3

W. M. Xu*, M. P. Pasternak, G. Kh Rozenberg, R. D. Taylor

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

EuFeO3 perovskite has been studied by using 57Fe Mössbauer effect and X-ray diffraction under pressures up to 90 GPa and in the temperature range of 4.2–300 K. A high-pressure-induced first-order phase transition is observed in the pressure range of 45–52 GPa as manifested by a discontinuous volume and IS reduction and dramatic changes of the hyperfine interaction parameters. The high-pressure phase of Fe3+ is established as a low-spin state (S=1/2, 2T2g) characterized by spin-spin magnetic relaxation spectra to the lowest temperature. The nature and mechanism of the magnetic relaxation are discussed.

Original languageEnglish
Pages (from-to)243-247
Number of pages5
JournalHyperfine Interactions
Volume141-142
Issue number1-4
DOIs
StatePublished - 28 Jun 2002

Funding

FundersFunder number
United States-Israel Binational Science Foundation9800003
Israel Science Foundation1998003

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