Low-temperature transport studies of aluminum-coated DNA superlattices infiltrated with iron

Self-assembled DNA lattices provide a pathway for creating nanoscale systems with by-design periodicity, diverse folding arrangements, geometric precision, and reproducibility [1]. These capabilities can be applied to various inorganic materials with which the DNA nanolattices can be templated or coated. For example, 3D self-assembled DNA cubic superlattices coated with elemental superconducting thin films can be used to create arrays of Josephson junctions [2]. Of particular interest is the interplay between superconductivity and magnetism at the nanoscale. Here, we experimentally investigate 3D superlattices containing iron and coated with a thin film of aluminum. We present low-temperature transport measurements performed on these novel nanostructures, and discuss possible connections to unconventional superconductivity.

[1] Tian et al., Nature Matter 15, 654-661 (2016)

[2] Shani et al., Nat Commun 11, 5697 (2020)