Ordering nanometer-scale magnets using bacterial thread templates
Autor: | Sean A. Davis, Eric L. Mayes, Mark Field, Stephen Mann, Chip J. Smith, Neil H. Mendelson, David D. Awschalom |
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Rok vydání: | 1998 |
Předmět: | |
Zdroj: | Applied Physics Letters. 73:1739-1741 |
ISSN: | 1077-3118 0003-6951 |
DOI: | 10.1063/1.122262 |
Popis: | Nanometer-scale ferromagnetic particles (Fe2O3, Fe3O4) are dispersed within a mutant bacterial chain which is drawn into a macroscopic fiber “rope.” Cross-sectional scanning electron microscopy images reveal that the iron oxide particles are intercalated between the walls of the bacterial cells which are bundled into parallel threads. The field-dependent switching is seen to markedly sharpen when the synthesis is conducted within an applied magnetic field. |
Databáze: | OpenAIRE |
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