可拉伸磁电子学。

Stretchable magnetoelectronics.

机构信息

Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany.

出版信息

Nano Lett. 2011 Jun 8;11(6):2522-6. doi: 10.1021/nl201108b. Epub 2011 May 10.

DOI:10.1021/nl201108b

Abstract

We fabricated [Co/Cu] multilayers revealing a giant magnetoresistance (GMR) effect on free-standing elastic poly(dimethylsiloxane) (PDMS) membranes. The GMR performance of [Co/Cu] multilayers on rigid silicon and on free-standing PDMS is similar and does not change with tensile deformations up to 4.5%. Mechanical deformations imposed on the sensor are totally reversible, due to the elasticity of the PDMS membranes. This remarkable performance upon stretching relies on a wrinkling of GMR layers on top of the PDMS membrane.

摘要

我们制备了在自由支撑的弹性聚二甲基硅氧烷（PDMS）膜上呈现巨磁电阻（GMR）效应的[Co/Cu]多层膜。[Co/Cu]多层膜在刚性硅和自由支撑的 PDMS 上的 GMR 性能相似，且在拉伸变形高达 4.5%时不会发生变化。由于 PDMS 膜的弹性，施加在传感器上的机械变形是完全可逆的。这种在拉伸时的显著性能依赖于 GMR 层在 PDMS 膜上的起皱。