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12 July 2017
Two-photon lithography for 3D magnetic nanostructure fabrication
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Ferromagnetic materials have been utilized as recording media in data storage devices for many decades. The confinement of a material to a two-dimensional plane is a significant bottleneck in achieving ultra-high recording densities, and this has led to the proposition of three-dimensional (3D) racetrack memories that utilize domain wall propagation along the nanowires. However, the fabrication of 3D magnetic nanostructures of complex geometries is highly challenging and is not easily achieved with standard lithography techniques. Here, we demonstrate a new approach to construct 3D magnetic nanostructures of complex geometries using a combination of two-photon lithography and electrochemical deposition. The magnetic properties are found to be intimately related to the 3D geometry of the structure, and magnetic imaging experiments provide evidence of domain wall pinning at the 3D nanostructured junction.
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Two-photon lithography for 3D magnetic nanostructure fabrication
)
Abstract
Ferromagnetic materials have been utilized as recording media in data storage devices for many decades. The confinement of a material to a two-dimensional plane is a significant bottleneck in achieving ultra-high recording densities, and this has led to the proposition of three-dimensional (3D) racetrack memories that utilize domain wall propagation along the nanowires. However, the fabrication of 3D magnetic nanostructures of complex geometries is highly challenging and is not easily achieved with standard lithography techniques. Here, we demonstrate a new approach to construct 3D magnetic nanostructures of complex geometries using a combination of two-photon lithography and electrochemical deposition. The magnetic properties are found to be intimately related to the 3D geometry of the structure, and magnetic imaging experiments provide evidence of domain wall pinning at the 3D nanostructured junction.
References(30)
Tallents, G.; Wagenaars, E.; Pert, G. Optical lithography: Lithography at EUV wavelengths. Nat. Photonics 2010, 4, 809-811.
Parkin, S. S. P.; Hayashi, M.; Thomas, L. Magnetic domain-wall racetrack memory. Science 2008, 320, 190-194.
Da Col, S.; Jamet, S.; Rougemaille, N.; Locatelli, A.; Mentes, T. O.; Burgos, B. S.; Afid, R.; Darques, M.; Cagnon, L.; Toussaint, J. C. et al. Observation of Bloch-point domain walls in cylindrical magnetic nanowires. Phys. Rev. B 2014, 89, 180405.
Pylypovskyi, O. V.; Sheka, D. D.; Kravchuk, V. P.; Yershov, K. V.; Makarov, D.; Gaididei, Y. Rashba torque driven domain wall motion in magnetic helices. Sci. Rep. 2016, 6, 23316.
Shishkin, I. S.; Mistonov, A. A.; Dubitskiy, I. S.; Grigoryeva, N. A.; Menzel, D.; Grigoriev, S. V. Nonlinear geometric scaling of coercivity in a three-dimensional nanoscale analog of spin ice. Phys. Rev. B 2016, 94, 064424.
Bicelli, L. P.; Bozzini, B.; Mele, C.; D'Urzo, L. A review of nanostructural aspects of metal electrodeposition. Int. J. Electrochem. Sci. 2008, 3, 356-408.
Ivanov, Y. P.; Chuvilin, A.; Vivas, L. G.; Kosel, J.; Chubykalo-Fesenko, O.; Vázquez, M. Single crystalline cylindrical nanowires—Toward dense 3D arrays of magnetic vortices. Sci. Rep. 2016, 6, 23844.
da Câmara Santa Clara Gomes, T.; De La Torre Medina, J.; Lemaitre, M.; Piraux, L. Magnetic and magnetoresistive properties of 3D interconnected NiCo nanowire networks. Nanoscale Res. Lett. 2016, 11, 466.
De Teresa, J. M.; Fernández-Pacheco, A.; Córdoba, R.; Serrano-Ramón, L.; Sangiao, S.; Ibarra, M. R. Review of magnetic nanostructures grown by focused electron beam induced deposition (FEBID). J. Phys. D Appl. Phys. 2016, 49, 243003.
Fernández-Pacheco, A.; Serrano-Ramón, L.; Michalik, J. M.; Ibarra, M. R.; De Teresa, J. M.; O'Brien, L.; Petit, D.; Lee, J.; Cowburn, R. P. Three dimensional magnetic nanowires grown by focused electron-beam induced deposition. Sci. Rep. 2013, 3, 1492.
Bisoyi, H. K.; Li, Q. Light-directing chiral liquid crystal nanostructures: From 1D to 3D. Acc. Chem. Res. 2014, 47, 3184-3195.
Wang, L.; Li, Q. Stimuli-directing self-organized 3D liquid-crystalline nanostructures: From materials design to photonic applications. Adv. Funct. Mater. 2016, 26, 10-28.
Xue, C. M.; Gao, M.; Xue, Y. H.; Zhu, L.; Dai, L. M.; Urbas, A.; Li, Q. Building 3D layer-by-layer graphene-gold nanoparticle hybrid architecture with tunable interlayer distance. J. Phys. Chem. C 2014, 118, 15332-15338.
Wang, L. B.; Li, F. Y.; Kuang, M. N.; Gao, M.; Wang, J. X.; Huang, Y.; Jiang, L.; Song, Y. L. Interface manipulation for printing three-dimensional microstructures under magnetic guiding. Small 2015, 11, 1900-1904.
Wei, L.; Dong, Z. C.; Kuang, M. X.; Li, Y. N.; Li, F. Y.; Jiang, L.; Song, Y. L. Printing patterned fine 3D structures by manipulating the three phase contact line. Adv. Funct. Mater. 2015, 25, 2237-2242.
Sun, H. -B.; Kawata, S. Two-photon photopolymerization and 3D lithographic microfabrication. In NMR·3D Analysis Photopolymerization. Advances in Polymer Science; Fatkullin, N.; Ikehara, T.; Jinnai, H.; Kawata, S.; Kimmich, R.; Nishi, T.; Nishikawa, Y.; Sun, H. -B., Eds.; Springer: Berlin Heidelberg, 2004; pp169-273.
Cao, Y. Y.; Takeyasu, N.; Tanaka, T.; Duan, X. M.; Kawata, S. 3D metallic nanostructure fabrication by surfactant-assisted multiphoton-induced reduction. Small 2009, 5, 1144-1148.
Cao, Z. H.; Zheng, M. L.; Dong, X. Z.; Jin, F.; Zhao, Z. S.; Duan, X. M. Two-photon nanolithography of positive photoresist thin film with ultrafast laser direct writing. Appl. Phys. Lett. 2013, 102, 201108.
MicroChemicals. Development of photoresists [Online]. http://www.microchemicals.com (accessed Mar 14, 2017).
Mehdizadeh, S.; Dukovic, J. O.; Andricacos, P. C.; Romankiw, L. T.; Cheh, H. Y. The influence of lithographic patterning on current distribution: A model for microfabrication by electrodeposition. J. Electrochem. Soc. 1992, 139, 78-91.
Klar, T. A.; Wollhofen, R.; Jacak, J. Sub-Abbe resolution: from STED microscopy to STED lithography. Phys. Scr. 2014, 2014, 014049.
Ivanov, Y. P.; Vivas, L. G.; Asenjo, A.; Chuvilin, A.; Chubykalo-Fesenko, O.; Vázquez, M. Magnetic structure of a single-crystal hcp electrodeposited cobalt nanowire. Europhys. Lett. 2013, 102, 17009.
Anders, S.; Padmore, H. A.; Duarte, R. M.; Renner, T.; Stammler, T.; Scholl, A.; Scheinfein, M. R.; Stöhr, J.; Séve, L.; Sinkovic, B. Photoemission electron microscope for the study of magnetic materials. Rev. Sci. Instrum. 1999, 70, 3973-3981.
De Graef, M. Recent progress in Lorentz transmission electron microscopy. ESOMAT 2009, 01002.
Zvezdin, A. K.; Kotov, V. A. Modern Magnetooptics and Magnetooptical Materials; CRC Press: Boca Raton, 1997.
Pirota, K. R.; Béron, F.; Zanchet, D.; Rocha, T. C. R.; Navas, D.; Torrejón, J.; Vazquez, M.; Knobel, M. Magnetic and structural properties of fcc/hcp bi-crystalline multilayer Co nanowire arrays prepared by controlled electroplating. J. Appl. Phys. 2011, 109, 083919.
Henry, Y.; Ounadjela, K.; Piraux, L.; Dubois, S.; George, J. M.; Duvail, J. L. Magnetic anisotropy and domain patterns in electrodeposited cobalt nanowires. Eur. Phys. J. B 2001, 20, 35-54.
Xu, Y. B.; Vaz, C. A. F.; Hirohata, A.; Yao, C. C.; Lee, W. Y.; Bland, J. A. C.; Rousseaux, F.; Cambril, E.; Launois, H. Domain wall trapping probed by magnetoresistance and magnetic force microscopy in submicron ferromagnetic wire structures. J. Appl. Phys. 1999, 85, 6178-6180.
Mueller, P.; Thiel, M.; Wegener, M. 3D direct laser writing using a 405 nm diode laser. Opt. Lett. 2014, 39, 6847-6850.
Allenspach, R. Spin-polarized scanning electron microscopy. IBM J. Res. Dev. 2000, 44, 553-570.
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Acknowledgements
S. L. gratefully acknowledges funding from EPSRC (Nos. EP/L006669/1, EP/P510750/1, and EP/P511122/1). JGR and Y-LDH acknowledge financial support from the ERC advanced grant 247462 QUOWSS and EPSRC grant EP/M009033/1. The research leading to these results has received funding from the European Union Seventh Framework Programme [FP7-People-2012-ITN] under grant agreement 316657 (SpinIcur). Information on the data that underpins the research reported here, including how to access them, can be found in the Cardiff University data catalogue at http://doi.org/10.17035/d.2017.0031438135.
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