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Large-Area Intercalated 2D-Pb/Graphene Heterostructure as a Platform for Generating Spin-Orbit Torque by Vera, Alexander; Zheng, Boyang; Yanez, Wilson; Yang, Kaijie; Kim, Seong Yeoul; Wang, Xinglu; Kotsakidis, Jimmy C.; El-Sherif, Hesham; Krishnan, Gopi; Koch, Roland J.; Bowen, T. Andrew; Dong, Chengye; Wang, Yuanxi; Wetherington, Maxwell; Rotenberg, Eli; Bassim, Nabil; Friedman, Adam L.; Wallace, Robert M.; Liu, Chaoxing; Samarth, Nitin; Crespi, Vincent H.; Robinson, Joshua A. is a scholarly article available to read on EtoBox.

What is Large-Area Intercalated 2D-Pb/Graphene Heterostructure as a Platform for Generating Spin-Orbit Torque about?

A scalable platform to synthesize ultrathin heavy metals may enable high efficiency charge-to-spin conversion for next-generation spintronics. Here we report the synthesis of air-stable, epitaxially registered monolayer Pb underneath bilayer graphene on SiC (0001) by confinement heteroepitaxy (CHet). Diffraction, spectroscopy, and microscopy reveal CHet-based Pb intercalation predominantly exhibits a mottled hexagonal superstructure due to an ordered network of Frenkel-Kontorova-like domain walls. The system's air stability enables ex-situ spin torque ferromagnetic resonance (ST-FMR) measurements that demonstrate charge-to-spin conversion in graphene/Pb/ferromagnet heterostructures with a 1.5x increase in the effective field ratio compared to control samples.

Author

Vera, Alexander; Zheng, Boyang; Yanez, Wilson; Yang, Kaijie; Kim, Seong Yeoul; Wang, Xinglu; Kotsakidis, Jimmy C.; El-Sherif, Hesham; Krishnan, Gopi; Koch, Roland J.; Bowen, T. Andrew; Dong, Chengye; Wang, Yuanxi; Wetherington, Maxwell; Rotenberg, Eli; Bassim, Nabil; Friedman, Adam L.; Wallace, Robert M.; Liu, Chaoxing; Samarth, Nitin; Crespi, Vincent H.; Robinson, Joshua A.

Published

2022

Language

EN