Surface Studies of Re_{3}Fe_{5}O_{12} Garnets, ReFeO_{3} Orthoferrites and ReVO_{4} Orthovanadates

• Authors: E. Sobczak , D. Żymierska , H. Ebel
• Languages of publication: EN

Abstracts

EN

The X-ray photoelectron spectra for Re_{3}Fe_{5}O_{12} garnets, ReFeO_{3} orthoferrites and ReVO_{4} orthovanadates have been measured by using Mg K_{α} radiation. The O 1s, Re 4d, Fe 2p, and V 2p photoelectron spectra were studied. A very big difference was observed between ReFeO_{3} orthoferrites and ReVO_{4} orthovanadates, mainly the Fe 2p_{3/2} lines were double broader than V 2p_{3/2} ones, and the O 1s line is split by about 1.6 eV for orthoferrites, while this line is single for orthovanadates. The O 1s peak at 531.8 eV with intensity about 70% of the main peak is interpreted as originated from a charge fluctuation between oxygen and iron ions due to superexchange interaction.

Keywords

EN

79.60.-i; 75.30.Et; 71.70.Gm

Discipline

• 75.30.Et: Exchange and superexchange interactions(see also 71.70.Gm Exchange interactions)
• 79.60.-i: Photoemission and photoelectron spectra(for photoelectron spectroscopy, see 87.64.ks in biological physics; 82.80.Pv in chemical analysis)
• 71.70.Gm: Exchange interactions

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1996
• Volume: 89
• Issue: 3
• Pages: 329-333

Dates

published

1996-03

Contributors

author

E. Sobczak

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

author

D. Żymierska

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

author

H. Ebel

• Institute of Applied and Technical Physics, Technical University of Vienna, Wiedner Hauptstr. 8-10, 1040 Vienna, Austria

Identifiers

DOI

10.12693/APhysPolA.89.329