{sup 57}Fe NMR study of multiferroic BiFeO{sub 3}

Journal Article · Mon Mar 15 00:00:00 EDT 2010 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776110030076· OSTI ID:21443580

Sigov, A S ^[1]

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1. Electronics, and Automation (Technical University), Moscow State Institute of Radioengineering (Russian Federation)

The effects of the {sup 57}Fe isotope content and high-frequency magnetic field amplitude h{sub 1} on the shape of the NMR spectrum of multiferroic BiFeO{sub 3} at T = 4.2 K are studied by pulsed nuclear magnetic resonance. The NMR spectrum shape and transverse relaxation time T{sub 2} are found to depend strongly on the {sup 57}Fe isotope content and h{sub 1} in multiferroic BiFeO{sub 3} in the presence of a spatial spin-modulated structure of a cycloid type. In a sample with a high {sup 57}Fe isotope content, the Suhl-Nakamura interaction contributes substantially to T{sub 2}. When these dynamic effects are taken into account for analysis of the NMR spectrum shape, an undisturbed (without an anharmonicity effect) spatial spin-modulated structure of a cycloid type is shown to exist in BiFeO{sub 3}.

• OSTI ID: 21443580
• Journal Information: Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 3 Vol. 110; ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMPLITUDES
ANGULAR MOMENTUM
BISMUTH COMPOUNDS
CHALCOGENIDES
EVEN-ODD NUCLEI
INTERMEDIATE MASS NUCLEI
IRON 57
IRON COMPOUNDS
IRON ISOTOPES
IRON OXIDES
ISOTOPES
MAGNETIC FIELDS
MAGNETIC RESONANCE
NMR SPECTRA
NUCLEAR MAGNETIC RESONANCE
NUCLEI
OXIDES
OXYGEN COMPOUNDS
PARTICLE PROPERTIES
RELAXATION TIME
RESONANCE
SPECTRA
SPECTRAL SHIFT
SPIN
STABLE ISOTOPES
TEMPERATURE RANGE
TEMPERATURE RANGE 0000-0013 K
TRANSITION ELEMENT COMPOUNDS