تقرير
Electrical characterization of the azimuthal anisotropy of $(\mathrm{Ni}_x\mathrm{Co}_{1-x})\mathrm{B}$-based ferromagnetic nanotubes
| العنوان: | Electrical characterization of the azimuthal anisotropy of $(\mathrm{Ni}_x\mathrm{Co}_{1-x})\mathrm{B}$-based ferromagnetic nanotubes |
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| المؤلفون: | Tiwari, Dhananjay, Scheuerlein, Martin Christoph, Jaber, Mahdi, Gautier, Eric, Vila, Laurent, Attané, Jean-Philippe, Schöbitz, Michael, Masseboeuf, Aurélien, Hellmann, Tim, Hofmann, Jan P., Ensinger, Wolfgang, Fruchart, Olivier |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | We report on the structural, electric and magnetic properties of $(\mathrm{Ni}_x\mathrm{Co}_{1-x})\mathrm{B}$ ferromagnetic nanotubes, displaying azimuthal magnetization. The tubes are fabricated using electroless plating in polycarbonate porous templates, with lengths several tens of micrometers, diameters from 100nm to 500nm and wall thicknesses from 10nm to 80nm. The resistivity is $\sim 1.5\times10^{-6}\mathrm{\Omega/m}$, and the anisotropic magnetoresistance~(AMR) of 0.2-0.3%, one order of magnitude larger~(resp. smaller) than in the bulk material, which we attribute to the resistance at grain boundaries. We determined the azimuthal anisotropy field from M(H) AMR loops of single tubes contacted electrically. Its magnitude is around 10mT, and tends to increase with the tube wall thickness, as well as the Co content. However, surprisingly it does not dependent much on the diameter nor on the curvature. Comment: 12 pages, 10 figures, includes methods and appendix |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.jmmm.2023.170715 |
| URL الوصول: | http://arxiv.org/abs/2302.05246 |
| رقم الأكسشن: | edsarx.2302.05246 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.jmmm.2023.170715 |
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