Threshold interface magnetization required to induce magnetic proximity effect

Inyang, O.; Bouchenoire, L.; Nicholson, B.; Tokaç, M.; Rowan-Robinson, R.M.; Kinane, C.J.; Hindmarch, A.T.

Abstract

Proximity-induced magnetization (PIM) has broad implications across interface-driven spintronics applications employing spin currents. We directly determine the scaling between PIM in Pt and the temperaturedependent interface magnetization in an adjacent ferromagnet (FM) using depth-resolved magnetometry. The magnetization due to PIM does not follow the generally expected linear scaling with the FM interface magnetization, as a function of temperature. Instead, it vanishes while the FM interface magnetization remains. The effective magnetic susceptibilities of heavy-metal (HM) layers are shown to give rise to the previously unexplained asymmetric PIM found in HM/FM/HM trilayers.

Citation

Inyang, O., Bouchenoire, L., Nicholson, B., Tokaç, M., Rowan-Robinson, R., Kinane, C., & Hindmarch, A. (2019). Threshold interface magnetization required to induce magnetic proximity effect. Physical Review B, 100(17), Article 174418. https://doi.org/10.1103/physrevb.100.174418

• Journal Article Type: Article
• Online Publication Date: Nov 13, 2019
• Publication Date: Nov 1, 2019
• Deposit Date: Nov 13, 2019
• Publicly Available Date: Nov 13, 2019
• Journal: Physical Review B
• Print ISSN: 2469-9950
• Electronic ISSN: 2469-9969
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 100
• Issue: 17
• Article Number: 174418
• DOI: https://doi.org/10.1103/physrevb.100.174418
• Public URL: https://durham-repository.worktribe.com/output/1283472