Structural phase transformations in annealed Pt/Mn/Fe trilayers

Kruhlov, Ivan and Shamis, Oksana and Schmidt, Nataliia and Karpets, Myroslav and Gulyas, Szilvia and Hadjixenophontos, Efi and Burmak, Andrii and Sidorenko, Sergiy S and Katona, Gábor and Schmitz, Guido and Albrecht, Manfred and Vladymyrskyi, Igor A (2020) Structural phase transformations in annealed Pt/Mn/Fe trilayers. Journal of Physics - Condensed Matter. Institute of Physics (IOP) Publishing. doi: 10.1088/1361-648X/ab9269. ISSN 0953-8984.

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Abstract

Thermally-activated phase transitions in Pt/Mn/Fe thin films were investigated by a combination of x-ray diffraction, transmission electron microscopy, secondary neutral mass spectrometry depth profiling, atomic force microscopy, and magnetic properties measurements. Post-annealing was carried out in vacuum to different temperatures up to 620 °C. Initially, at temperatures between 280 °C – 450 °C first L10-MnPt is formed at the Mn/Pt interface followed by the most likely formation of metastable bcc Fe3Pt, which gets transformed by further annealing to fcc Fe3Pt and eventually to chemically ordered L12-Fe3Pt. The final product after annealing at 620 °C consists of two interesting phases, which are relevant for spintronic applications, antiferromagnetic L10-MnPt with addition of Fe and ferromagnetic L12-Fe3Pt, consistent with the initial element composition.

Item URL in elib:

https://elib.dlr.de/135300/

Document Type:

Article

Title:

Structural phase transformations in annealed Pt/Mn/Fe trilayers

Authors:

Authors	Institution or Email of Authors	Author's ORCID iD	ORCID Put Code
Kruhlov, Ivan	Physics of Metals, National Technical University of Ukraine Igor Sikorsky Kyiv Polytechnic Institute, 37 Prospect Peremogy, 9 building, Kiiv, 03056, UKRAINE	UNSPECIFIED	UNSPECIFIED
Shamis, Oksana	NTUU KPI im Igorâ Sikorskogo, Kiiv, 03056, UKRAINE	UNSPECIFIED	UNSPECIFIED
Schmidt, Nataliia	Experimentalphysik IV, Universität Augsburg, Augsburg, Bayern, GERMANY	UNSPECIFIED	UNSPECIFIED
Karpets, Myroslav	Physics of Metals, National Technical University of Ukraine Igor Sikorsky Kyiv Polytechnic Institute, Kyiv, UKRAINE	UNSPECIFIED	UNSPECIFIED
Gulyas, Szilvia	Department of Solid State Physics, University of Debrecen, Debrecen, Hajdú-Bihar, HUNGARY	UNSPECIFIED	UNSPECIFIED
Hadjixenophontos, Efi	German Aerospace Center (DLR), Institute of Engineering Thermodynamics, Stuttgart, GERMANY	UNSPECIFIED	UNSPECIFIED
Burmak, Andrii	Metals Physics Department, National Technical University of Ukraine, Kyiv, UKRAINE	UNSPECIFIED	UNSPECIFIED
Sidorenko, Sergiy S	National Technical University of Ukraine Kyiv, UA, Chemnitz, GERMANY	UNSPECIFIED	UNSPECIFIED
Katona, Gábor	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Schmitz, Guido	University of Stuttgart, Stuttgart, GERMANY	UNSPECIFIED	UNSPECIFIED
Albrecht, Manfred	Department of Physics, University of Augsburg, University Straße 1, Augsburg, 86159, GERMANY	UNSPECIFIED	UNSPECIFIED
Vladymyrskyi, Igor A	National Technical University of Ukraine, Kyiv, UKRAINE	UNSPECIFIED	UNSPECIFIED

Date:

12 May 2020

Journal or Publication Title:

Journal of Physics - Condensed Matter

Refereed publication:

Yes

Open Access:

Yes

Gold Open Access:

In SCOPUS:

Yes

In ISI Web of Science:

Yes

DOI:

10.1088/1361-648X/ab9269

Publisher:

Institute of Physics (IOP) Publishing

ISSN:

0953-8984

Status:

Published

Keywords:

chemical ordering, solid state reactions, magnetic thin films, L10-MnPt, Fe3Pt

HGF - Research field:

Energy

HGF - Program:

Storage and Cross-linked Infrastructures

HGF - Program Themes:

Thermal Energy Storage

DLR - Research area:

Energy

DLR - Program:

E SP - Energy Storage

DLR - Research theme (Project):

E - Thermochemical Processes (Storage) (old)

Location:

Stuttgart

Institutes and Institutions:

Institute of Engineering Thermodynamics > Electrochemical Energy Technology

Deposited By:

Hadjixenophontos, Efi

Deposited On:

08 Jul 2020 15:10

Last Modified:

01 Jul 2021 03:00

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