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

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8 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

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© 2017 Author(s).

ASJC Scopus subject areas

General Physics and Astronomy

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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.",

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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.

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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