Orthogonal interfacial exchange coupling in GaMnAsP/GaMnAs bilayers

Orthogonal interfacial exchange coupling in GaMnAsP/GaMnAs bilayers

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...

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Main Authors: Xiang Li, Seul-Ki Bac, Sining Dong, Xinyu Liu, Sanghoon Lee, Sergei Rouvimov, Margaret Dobrowolska, Jacek K. Furdyna
Format: Article
Language:English
Published: AIP Publishing LLC 2018-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.5006190
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spelling doaj-503dbbbab68e48f9b781b6a8895282f82020-11-24T22:05:49ZengAIP Publishing LLCAIP Advances2158-32262018-05-0185056401056401-610.1063/1.5006190071891ADVOrthogonal interfacial exchange coupling in GaMnAsP/GaMnAs bilayersXiang Li0Seul-Ki Bac1Sining Dong2Xinyu Liu3Sanghoon Lee4Sergei Rouvimov5Margaret Dobrowolska6Jacek K. Furdyna7Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USADepartment of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USADepartment of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USADepartment of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USADepartment of Physics, Korea University, Seoul 136-701, KoreaDepartment of Electrical Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USADepartment of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USADepartment of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USAWe 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.http://dx.doi.org/10.1063/1.5006190
collection DOAJ
language English
format Article
sources DOAJ
author Xiang Li
Seul-Ki Bac
Sining Dong
Xinyu Liu
Sanghoon Lee
Sergei Rouvimov
Margaret Dobrowolska
Jacek K. Furdyna
spellingShingle Xiang Li
Seul-Ki Bac
Sining Dong
Xinyu Liu
Sanghoon Lee
Sergei Rouvimov
Margaret Dobrowolska
Jacek K. Furdyna
Orthogonal interfacial exchange coupling in GaMnAsP/GaMnAs bilayers
AIP Advances
author_facet Xiang Li
Seul-Ki Bac
Sining Dong
Xinyu Liu
Sanghoon Lee
Sergei Rouvimov
Margaret Dobrowolska
Jacek K. Furdyna
author_sort Xiang Li
title Orthogonal interfacial exchange coupling in GaMnAsP/GaMnAs bilayers
title_short Orthogonal interfacial exchange coupling in GaMnAsP/GaMnAs bilayers
title_full Orthogonal interfacial exchange coupling in GaMnAsP/GaMnAs bilayers
title_fullStr Orthogonal interfacial exchange coupling in GaMnAsP/GaMnAs bilayers
title_full_unstemmed Orthogonal interfacial exchange coupling in GaMnAsP/GaMnAs bilayers
title_sort orthogonal interfacial exchange coupling in gamnasp/gamnas bilayers
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2018-05-01
description 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.
url http://dx.doi.org/10.1063/1.5006190
work_keys_str_mv AT xiangli orthogonalinterfacialexchangecouplingingamnaspgamnasbilayers
AT seulkibac orthogonalinterfacialexchangecouplingingamnaspgamnasbilayers
AT siningdong orthogonalinterfacialexchangecouplingingamnaspgamnasbilayers
AT xinyuliu orthogonalinterfacialexchangecouplingingamnaspgamnasbilayers
AT sanghoonlee orthogonalinterfacialexchangecouplingingamnaspgamnasbilayers
AT sergeirouvimov orthogonalinterfacialexchangecouplingingamnaspgamnasbilayers
AT margaretdobrowolska orthogonalinterfacialexchangecouplingingamnaspgamnasbilayers
AT jacekkfurdyna orthogonalinterfacialexchangecouplingingamnaspgamnasbilayers
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