Concepedia

Publication | Open Access

Magnetic shape memory microactuator

DOIFull Paper Access

34

Citations

0

References

2014

Year

E T Kalimullina, V. V. Koledov, V. I. Nizhankovskiǐ, F. Albertini, S. Fabbrici, Paolo Ranzieri, Pnina Ari‐Gur
Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics

Abstract

Abstract Bimetallic composite nanotweezers based on Ti 2 NiCu alloy with shape memory effect (SME) have been recently proved to allow the manipulation of real nano‐objects, such as nanotubes, and bionanoparticles while heated up to 40‐60 °C by laser radiation. The possibility of developing nanotweezers operating at a constant temperature is of particular importance mainly for the manipulation of biological objects. In this work, a microactuator was produced using a composite bilayer made of a layer of rapidly quenched Ni 53 Mn 24 Ga 23 ferromagnetic shape memory Heusler alloy and an elastic layer of Pt. The size of the microactuator is 25×2.3×1.7 µm 3 . The controlled bending deformation of the actuator is 1.2%, with a deflection of the end of the actuator higher than 2 µm has been obtained by applying a magnetic field of 8 T at T = 62 °C The possibility of the development of new technologies for magnetic‐field‐controlled nanotools operating at a constant temperature using the new multifunction magnetic shape memory alloys will be discussed. (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)