Crystal and magnetic structures of the Bi{sub 1-x}Sr{sub x}FeO{sub 3-{delta}} and Bi{sub 1-x}A{sub x}Fe{sub 1-x}Mn{sub x}O{sub 3} (A = Sr, Ca) solid solutions

Journal Article · Tue Dec 15 04:00:00 EST 2009 · Crystallography Reports

DOI:https://doi.org/10.1134/S1063774509070074· OSTI ID:22051272

Karpinskii, D V; Bushinskii, M V; Chobot, A N; Pushkarev, N V ^[1]; Prohnenko, O ^[2]; Kopcewicz, M ^[3]; Szymczak, R ^[4]

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1. National Academy of Sciences of Belarus, Joint Institute of Solid-State and Semiconductor Physics (Belarus)
2. Helmholtz-Zentrum Berlin fuer Materialen und Energie GmbH (Germany)
3. Institute of Electronic Materials Technology (Poland)
4. Polish Academy of Sciences, Institute of Physics (Poland)

Bi{sub 1-x}Sr{sub x}FeO{sub 3-x/2} (I), Bi{sub 1-x}Sr{sub x}Fe{sub 1-x}MnxO{sub 3} (II), and Bi{sub 1-x}Ca{sub x}Fe{sub 1-x}Mn{sub x}O{sub 3} (III) solid solutions have been obtained. Their magnetization has been measured by X-ray and neutron diffraction and Moessbauer spectroscopy. According to the Moessbauer spectroscopy data, iron ions are in the trivalent state in system I. Near the concentration x {approx} 0.2, rhombohedral distortions (sp. gr. R3c) are transformed into tetragonal (P4/mmm). The symmetry of system II changes at x > 0.2 (R3c {sup {yields}} R3c), whereas orthorhombic distortions (R3c {sup {yields}} Pbnm) arise in system III at x > 0.2. The magnetic structure is antiferromagnetic (of G type). The samples of systems II and III exhibit weak ferromagnetism at x > 0.2 due to the Dzyaloshinski-Moriya interaction.

• OSTI ID: 22051272
• Journal Information: Crystallography Reports, Journal Name: Crystallography Reports Journal Issue: 7 Vol. 54; ISSN 1063-7745; ISSN CYSTE3
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANTIFERROMAGNETISM
BISMUTH COMPOUNDS
CRYSTALS
FERROMAGNETISM
INTERACTIONS
IRON COMPOUNDS
IRON IONS
MAGNETIZATION
MANGANESE COMPOUNDS
MOESSBAUER EFFECT
NEUTRON DIFFRACTION
ORTHORHOMBIC LATTICES
SOLID SOLUTIONS
STRONTIUM COMPOUNDS
SYMMETRY
TETRAGONAL LATTICES
TRIGONAL LATTICES
X-RAY DIFFRACTION