“Cylindrical micro and nanowires: Fabrication, properties and applications”
J. Alam, C. Bran, H. Chiriac, N. Lupu, T.A. Óvári, L.V. Panina, V. Rodionova, R. Varga, M. Vazquez, A. Zhukov
Journal of Magnetism and Magnetic Materials 513 (2020) 167074
DOI: doi.org/10.1016/j.jmmm.2020.167074
In this Review article, the state of the art in cylindrical nano and micro wires is updated with particular emphasis on the current research trends. The key properties for prospective applications are analyzed including magnetic anisotropy and micromagnetic structure, spin-caloritronics, domain wall dynamics and its control by transverse magnetic field and induced anisotropy, high frequency impedance and magnetic control of the electric polarizability, shape-memory and magnetocaloric effects in Heusler alloys wires.
Cylindrical nanowires present specific magnetic domain configurations as complex vortex and transverse domains while the magnetization reversal typically involves propagation of Bloch-point domain walls. Such magnetic behavior offers new perspectives for applications in advanced technologies including spintronics, logic devices and novel magnetic recording media, functionalization and bioengineering and sensor devices.
Rapidly solidified glass-coated amorphous nanowires and submicron wires constitute a novel class of ultrathin soft magnetic materials attractive for micro and nano sensors. Amorphous and nanocrystalline microwires present quite peculiar magnetic properties, like spontaneous magnetic bistability and magnetoimpedance effect. They are also suitably employed as selective microwave or as Heusler alloys materials.
This work includes some of more relevant work presented in the 8th International Workshop on Magnetic Wires (IWMW 2019) hold in Kaliningrad, August 2019. It contains the contributions from other institutions as National University of Science and Technology, Moscow, Russia; National Institute of Research and Development for Technical Physics, Iasi, Romania; Immanuel Kant Baltic Federal University, Kaliningrad, Russia and Dpto. Física de Materiales, University of the Basque Country, San Sebastian, Spain. The work has been partly supported by the Spanish Ministry of Economy, Industry and Competitiveness (MINECO) under project MAT2016-76824-C3-1-R and by the Regional Government of Madrid under project S2018/NMT-4321 NANOMAGCOST-CM.