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Magnetic microstructure of iron sulfide crystals in magnetotactic bacteria from off-axis electron holography

Kasama, T. and Pósfai, Mihály and Chong, R. K. K. and Finlayson, A. P. and Dunin-Borkowski, R. E. and Frankel, R. B. (2006) Magnetic microstructure of iron sulfide crystals in magnetotactic bacteria from off-axis electron holography. In: 7th Latin American Workshop on Magnetism, Magnetic Materials and Their Applications, 2005. december 12-16., Renaca, Chile.

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Abstract

Transmission electron microscopy, off-axis electron holography and energy-selected imaging were used to study the crystallography, morphology, and magnetic microstructure of nanoscale greigite (Fe3S4) magnetosomes in magnetotactic bacteria from a sulfidic habitat. The greigite magnetosomes were organized in chains, but were less ordered than magnetite magnetosomes in other bacteria. Nevertheless, the magnetosomes comprise a permanent magnetic dipole, sufficient for magnetotaxis.

Item Type: Conference or Workshop Item (Paper)
Additional Information: In: PHYSICA B-CONDENSED MATTER (ISSN 0921-4526) Volume: 384 Issue: 1-2
Subjects: Q Science / természettudomány > QC Physics / fizika
Q Science / természettudomány > QD Chemistry / kémia > QD06 Mineralogy / ásványtan
Q Science / természettudomány > QE Geology / földtudományok
Depositing User: Erika Bilicsi
Date Deposited: 23 Nov 2012 20:36
Last Modified: 23 Nov 2012 20:40
URI: http://real.mtak.hu/id/eprint/3437

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