najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМОnajo-864Research ArticleFROM THE EDITORIAL BOARDFROM THE EDITORIAL BOARDGraphene edge spins: spintronics and magnetism in graphene nanomeshesHashimotoT.

Faculty of Science and Engineering

Kanagawa

KamikawaS.

Faculty of Science and Engineering

Kanagawa

YagiY.

Faculty of Science and Engineering

Kanagawa

HaruyamaJ.

Faculty of Science and Engineering

Kanagawa

J-haru@ee.aoyama.ac.jpYangH.

38054, Grenoble cedex 9

ChshievM.

38054, Grenoble cedex 9

Aoyama Gakuin UniversityJapanSPINTEC, CEA/CNRS/UJF-Grenoble 1/Grenoble-INPFrance201415082025512538Copyright © Hashimoto T., Kamikawa S., Yagi Y., Haruyama J., Yang H., Chshiev M., 20252025Hashimoto T., Kamikawa S., Yagi Y., Haruyama J., Yang H., Chshiev M.Hashimoto T., Kamikawa S., Yagi Y., Haruyama J., Yang H., Chshiev M.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/864

We have fabricated low-defect graphene nanomeshes (GNMs) by using a non-lithographic method and observed large-amplitude ferromagnetism even at room temperature, only when pore edges of the GNMs were hydrogenterminated. The observed correlation between the inter-pore spacing and magnetism and also magnetic force microscope observations suggest that it is attributed to polarzied electron spins localized at the zigzag-type atomic structured pore-edges. The magnetic moment per edge dangling bond (∼0.3 µB) is also in quantitative agreement with two theories. Moreover, a spin pumping effect is found for fields applied in parallel with the GNM planes in few-layer ferromagnetic GNMs, while a magnetoresistance (MR) hysteresis loop is observed under perpendicular fields. The present ferromagnetic GNMs must also realize rare-element free, invisible, flexible, and ultra-light (wearable) magnets and spintronic devices, which can overcome environmental and material-resource problems.

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The authors declare that there are no conflicts of interest present.