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
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