Large magnetoresistance in magnetically coupled SrRuO₃ -CoFe₂O₄ self-assembled nanostructures

Heng-Jui Liu; Vu-Thanh Tra; Ying-Jiun Chen; Rong Huang; Chun-Gang Duan; Ying-Hui Hsieh; Hong-Ji Lin; Jiunn-Yuan Lin; Chien-Te Chen; Yuichi Ikuhara; Ying-Hao Chu

doi:10.1002/adma.201301461

Large magnetoresistance in magnetically coupled SrRuO₃ -CoFe₂O₄ self-assembled nanostructures

Adv Mater. 2013 Sep 14;25(34):4753-9. doi: 10.1002/adma.201301461. Epub 2013 Jul 12.

Authors

Heng-Jui Liu¹, Vu-Thanh Tra, Ying-Jiun Chen, Rong Huang, Chun-Gang Duan, Ying-Hui Hsieh, Hong-Ji Lin, Jiunn-Yuan Lin, Chien-Te Chen, Yuichi Ikuhara, Ying-Hao Chu

Affiliation

¹ Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan ROC.

PMID: 23847088
DOI: 10.1002/adma.201301461

Abstract

A new way to induce a large magnetoresistance has been achieved by self-assembled nanostructures consisting of ferromagnetic spinel CoFe₂O₄ (CFO) and metallic perovskite SrRuO₃ (SRO). The interdiffused Fe³⁺ ions in SRO have paved the way to strong magnetic couplings with CFO nanopillars, resulting in the suppression of spin-polarized electron scattering.

Keywords: cobalt ferrite (CoFe2O4); magnetoresistance; self-assembled nanostructures; strontium ruthenate (SrRuO3).

Publication types

Research Support, Non-U.S. Gov't