Temperature- and pressure-induced spin-state transitions in LaCoO3

G. Vankó, Jean Pascal Rueff, Aleksi Mattila, Z. Németh, Abhay Shukla

Research output: Contribution to journalArticle

119 Citations (Scopus)

Abstract

We report the continuous variation of the spin moment of cobalt in LaCoO3 across its temperature and pressure-induced spin transitions evidenced with Kβ emission spectra. The first thermal transition is best described by a transition to an orbitally nondegenerate intermediate spin (S=1) state. In parallel, continuous redistribution of the 3d electrons is also indicated by partial fluorescence yield x-ray absorption spectra. At high pressure, our study confirms that the material becomes low spin between 40 and 70 kbar at room temperature.

Original languageEnglish
Article number024424
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume73
Issue number2
DOIs
Publication statusPublished - 2006

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Cobalt
Absorption spectra
Fluorescence
X rays
Temperature
temperature
Electrons
x ray spectra
x ray absorption
emission spectra
cobalt
absorption spectra
moments
fluorescence
room temperature
electrons
Hot Temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Temperature- and pressure-induced spin-state transitions in LaCoO3. / Vankó, G.; Rueff, Jean Pascal; Mattila, Aleksi; Németh, Z.; Shukla, Abhay.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 73, No. 2, 024424, 2006.

Research output: Contribution to journalArticle

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