Control of lateral ferromagnetic domains in Cr2O3/Pt/Co thin film system with positive exchange bias

Tomohiro Nozaki; Muftah Al-Mahdawi; Satya Prakash Pati; Shujun Ye; Masashi Sahashi

doi:10.1063/1.4979546

Control of lateral ferromagnetic domains in Cr₂O₃/Pt/Co thin film system with positive exchange bias

Tomohiro Nozaki, Muftah Al-Mahdawi, Satya Prakash Pati, Shujun Ye, Masashi Sahashi

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

We investigated the switching of perpendicular exchange bias (PEB) from a negative to a positive value in an exchange-coupled Cr₂O₃/Pt/Co heterostructure. With varying the Pt spacer layer thickness or the measurement temperature, two types of intermediate states were found during the switching process: a double hysteresis loop indicating a local PEB and a single hysteresis loop indicating an averaged PEB. We propose a way to control the lateral ferromagnetic domain, which is associated with the type of the intermediate state, through the control of the exchange coupling magnitude.

Original language	English
Article number	132408
Journal	Applied Physics Letters
Volume	110
Issue number	13
DOIs	https://doi.org/10.1063/1.4979546
Publication status	Published - 2017 Mar 27

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "We investigated the switching of perpendicular exchange bias (PEB) from a negative to a positive value in an exchange-coupled Cr2O3/Pt/Co heterostructure. With varying the Pt spacer layer thickness or the measurement temperature, two types of intermediate states were found during the switching process: a double hysteresis loop indicating a local PEB and a single hysteresis loop indicating an averaged PEB. We propose a way to control the lateral ferromagnetic domain, which is associated with the type of the intermediate state, through the control of the exchange coupling magnitude.",

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AU - Nozaki, Tomohiro

AU - Al-Mahdawi, Muftah

AU - Pati, Satya Prakash

AU - Ye, Shujun

AU - Sahashi, Masashi

PY - 2017/3/27

Y1 - 2017/3/27

N2 - We investigated the switching of perpendicular exchange bias (PEB) from a negative to a positive value in an exchange-coupled Cr2O3/Pt/Co heterostructure. With varying the Pt spacer layer thickness or the measurement temperature, two types of intermediate states were found during the switching process: a double hysteresis loop indicating a local PEB and a single hysteresis loop indicating an averaged PEB. We propose a way to control the lateral ferromagnetic domain, which is associated with the type of the intermediate state, through the control of the exchange coupling magnitude.

AB - We investigated the switching of perpendicular exchange bias (PEB) from a negative to a positive value in an exchange-coupled Cr2O3/Pt/Co heterostructure. With varying the Pt spacer layer thickness or the measurement temperature, two types of intermediate states were found during the switching process: a double hysteresis loop indicating a local PEB and a single hysteresis loop indicating an averaged PEB. We propose a way to control the lateral ferromagnetic domain, which is associated with the type of the intermediate state, through the control of the exchange coupling magnitude.

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Control of lateral ferromagnetic domains in Cr₂O₃/Pt/Co thin film system with positive exchange bias

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