Orthogonal interfacial exchange coupling in GaMnAsP/GaMnAs bilayers

Xiang Li; Seul Ki Bac; Sining Dong; Xinyu Liu; Sanghoon Lee; Sergei Rouvimov; Margaret Dobrowolska; Jacek K. Furdyna

doi:10.1063/1.5006190

Orthogonal interfacial exchange coupling in GaMnAsP/GaMnAs bilayers

Xiang Li, Seul Ki Bac, Sining Dong, Xinyu Liu, Sanghoon Lee, Sergei Rouvimov, Margaret Dobrowolska, Jacek K. Furdyna

Department of Physics

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

4 Citations (Scopus)

Abstract

We carried out a systematic study of magnetic ordering and magnetic interlayer coupling in Ga_1-xMn_xAs_1-yP_y/Ga_1-xMn_xAs bilayers using superconducting quantum interference device magnetometry and ferromagnetic resonance. Such bilayers are interesting, because the easy axis of the constituent materials are orthogonal. Our results show that the bilayers are strongly exchange-coupled at the interface, that manifests itself in the form of horizontal exchange-bias-like shifts of the hysteresis loops of the Ga_1-xMn_xAs layer, as observed in field-cooled magnetic measurements.

Original language	English
Article number	056401
Journal	AIP Advances
Volume	8
Issue number	5
DOIs	https://doi.org/10.1063/1.5006190
Publication status	Published - 2018 May 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.5006190

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title = "Orthogonal interfacial exchange coupling in GaMnAsP/GaMnAs bilayers",

abstract = "We carried out a systematic study of magnetic ordering and magnetic interlayer coupling in Ga1-xMnxAs1-yPy/Ga1-xMnxAs bilayers using superconducting quantum interference device magnetometry and ferromagnetic resonance. Such bilayers are interesting, because the easy axis of the constituent materials are orthogonal. Our results show that the bilayers are strongly exchange-coupled at the interface, that manifests itself in the form of horizontal exchange-bias-like shifts of the hysteresis loops of the Ga1-xMnxAs layer, as observed in field-cooled magnetic measurements.",

author = "Xiang Li and Bac, {Seul Ki} and Sining Dong and Xinyu Liu and Sanghoon Lee and Sergei Rouvimov and Margaret Dobrowolska and Furdyna, {Jacek K.}",

note = "Funding Information: This work is supported by the NSF Grant DMR14-00432; by Basic Science Research Program through the NRF of Korea funded by the Ministry of Education (2015R1D1A1A01056614); by a grant from Korea University. Publisher Copyright: {\textcopyright} 2017 Author(s).",

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T1 - Orthogonal interfacial exchange coupling in GaMnAsP/GaMnAs bilayers

AU - Li, Xiang

AU - Bac, Seul Ki

AU - Dong, Sining

AU - Liu, Xinyu

AU - Lee, Sanghoon

AU - Rouvimov, Sergei

AU - Dobrowolska, Margaret

AU - Furdyna, Jacek K.

N1 - Funding Information: This work is supported by the NSF Grant DMR14-00432; by Basic Science Research Program through the NRF of Korea funded by the Ministry of Education (2015R1D1A1A01056614); by a grant from Korea University. Publisher Copyright: © 2017 Author(s).

PY - 2018/5/1

Y1 - 2018/5/1

N2 - We carried out a systematic study of magnetic ordering and magnetic interlayer coupling in Ga1-xMnxAs1-yPy/Ga1-xMnxAs bilayers using superconducting quantum interference device magnetometry and ferromagnetic resonance. Such bilayers are interesting, because the easy axis of the constituent materials are orthogonal. Our results show that the bilayers are strongly exchange-coupled at the interface, that manifests itself in the form of horizontal exchange-bias-like shifts of the hysteresis loops of the Ga1-xMnxAs layer, as observed in field-cooled magnetic measurements.

AB - We carried out a systematic study of magnetic ordering and magnetic interlayer coupling in Ga1-xMnxAs1-yPy/Ga1-xMnxAs bilayers using superconducting quantum interference device magnetometry and ferromagnetic resonance. Such bilayers are interesting, because the easy axis of the constituent materials are orthogonal. Our results show that the bilayers are strongly exchange-coupled at the interface, that manifests itself in the form of horizontal exchange-bias-like shifts of the hysteresis loops of the Ga1-xMnxAs layer, as observed in field-cooled magnetic measurements.

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Orthogonal interfacial exchange coupling in GaMnAsP/GaMnAs bilayers

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