1. Room-Temperature, Strain-Tunable Orientation of Magnetization in a Hybrid Ferromagnetic Co Nanorod-Liquid Crystalline Elastomer Nanocomposite.
- Author
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Riou, Ophélie, Lonetti, Barbara, Tan, Reasmey P., Harmel, Justine, Soulantica, Katerina, Davidson, Patrick, Mingotaud, Anne ‐ Françoise, Respaud, Marc, Chaudret, Bruno, and Mauzac, Monique
- Subjects
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MAGNETIC properties of nanocomposite materials , *MAGNETIZATION , *ELASTOMERS , *MAGNETIC properties of nanorods , *CHEMICAL research - Abstract
Hybrid nanocomposites based on magnetic nanoparticles dispersed in liquid crystalline elastomers are fascinating emerging materials. Their expected strong magneto-elastic coupling may open new applications as actuators, magnetic switches, and for reversible storage of magnetic information. We report here the synthesis of a novel hybrid ferromagnetic liquid crystalline elastomer. In this material, highly anisotropic Co nanorods are aligned through a cross-linking process performed in the presence of an external magnetic field. We obtain a highly anisotropic magnetic material which exhibits remarkable magneto-elastic coupling. The nanorod alignment can be switched at will at room temperature by weak mechanical stress, leading to a change of more than 50 % of the remnant magnetization ratio and of the coercive field. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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