@article{ddd.uab.cat:288375,
author = {Ma, Zheng and Monalisha, P. and Tan, Zhengwei and Pellicer
Vilà, Eva Maria and Liedke, Maciej Oskar and Butterling, Maik
and Attallah, Ahmed and Hirschmann, Eric and Wagner, Andreas and
Ibrahim, Fatima and Chshiev, Mairbek and Menéndez Dalmau, Enric
and Sort Viñas, Jordi},
title = {Optimizing magneto-ionic performance in structure/composition-
engineered ternary nitrides},
journal = {Journal of Materiomics},
year = {2024},
volume = {10},
number = {4},
pages = {870--879},
month = {7},
abstract = {Magneto-ionics, an emerging approach to manipulate magnetism
that relies on voltage-driven ion motion, holds the promise to
boost energy efficiency in information technologies such as
spintronic devices or future non-von Neumann computing
architectures. For this purpose, stability, reversibility,
endurance, and ion motion rates need to be synergistically
optimized. Among various ions, nitrogen has demonstrated superior
magneto-ionic performance compared to classical species such as
oxygen or lithium. Here, we show that ternary Co1−xFexN
compound exhibits an unprecedented nitrogen magneto-ionic
response. Partial substitution of Co by Fe in binary CoN is shown
to be favorable in terms of generated magnetization, cyclability
and ion motion rates. Specifically, the Co0.35Fe0.65N films
exhibit an induced saturation magnetization of 1,500 emu/cm3, a
magneto-ionic rate of 35.5 emu/(cm3·s) and endurance exceeding
103 cycles. These values significantly surpass those of other
existing nitride and oxide systems. This improvement can be
attributed to the larger saturation magnetization of Co0.35Fe0.65
compared to individual Co and Fe, the nature and size of
structural defects in as-grown films of different composition,
and the dissimilar formation energies of Fe and Co with N in the
various developed crystallographic structures.},
doi = {10.1016/j.jmat.2023.10.007},
url = {https://ddd.uab.cat/record/288375},
}