Synthesis and exchange bias effect of single-crystalline SrMn3O6-δ nanoribbons

Yu, J. Y.; Tang, S. L.; Zhang, X. K.; Zhai, L.; Shi, Y. G.; Deng, Y.; Du, Y. W.
May 2009
Applied Physics Letters;5/4/2009, Vol. 94 Issue 18, p182506
Academic Journal
Single-crystalline SrMn3O6-δ 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-δ, 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-δ nanoribbons can be effectively tuned by the cooling field, which is of very special interests for applications.


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