Jeon, Yoo Sang Jeong, Eunjin Im, Sang Won Ko, Min Jun Lee, Jin Seo Moon, Jun Hwan Lee, Min Hyeok Lee, Jeong Kyu Yoo, Sung Jong Nam, Ki Tae Kim, Young Keun 2025-11-21T02:34:56Z 2025-11-21T02:34:56Z 2025-11-11 2025-09 0036-8075 https://pubs.kist.re.kr/handle/201004/153601 Chiral crystals with well-defined handedness in atomic arrangements exhibit properties such as spin selectivity, asymmetric magnetoresistance, and skyrmions. Although similar geometry-induced phenomena in chiral organic molecule-based systems were observed, synthesizing uniform inorganic nanostructures with desired chirality using a scalable method remains challenging. We electrochemically synthesized chiral ferromagnetic cobalt-iron nanohelices from nanoparticles in anodized aluminum oxide templates. The spiral directions and the number of strands were regulated by incorporating chiral molecules and applying an appropriate potential. We demonstrate the observation of Faraday’s law of induction at the nanoscale and show how chiral nanohelices regulate the electron flow direction. The implications of our findings extend to the technological realm, with chirality- and ferromagnetism-based spin-tunable devices. English American Association for the Advancement of Science Spin-selective transport through chiral ferromagnetic nanohelices Article 10.1126/science.adx5963 1 Science, v.389, no.6764, pp.1031 - 1036 Science 389 6764 1031 1036 N scie scopus 001595061400007 2-s2.0-105015198649 Multidisciplinary Sciences Science & Technology - Other Topics Article ELECTRODEPOSITION GROWTH