Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 18, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3132056
Keywords
exchange interactions (electron); magnetisation; nanostructured materials; nanotechnology; strontium compounds; weak ferromagnetism
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Funding
- National Key Project of Fundamental Research of China [2005CB623605]
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Single-crystalline SrMn3O6-delta nanoribbons (width of 30-500 nm and lengths of up to several hundred micrometers) are synthesized by a molten-salt method. In contrast with the antiferromagnetism in bulk SrMn3O6-delta, magnetization measurements show weak ferromagnetism in these nanoribbons at low temperature. In particular, a notable exchange-bias effect, which strongly depends on the cooling field, is observed in applied magnetic field H <= 5 kOe. These results suggest that the exchange bias in the SrMn3O6-delta nanoribbons can be effectively tuned by the cooling field, which is of very special interests for applications.
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