journal article·2019-10-22

Interface-Engineered Control of Fe/Cu Thin Film Magnetism

Ryan D. Desautels, Vinod K. Paidi, John W. Freeland, Chin Shueh, Ko-Wei Lin, Johan van Lierop

ACS Applied Electronic Materials· Volume 1· Issue 10
Publisher page

Abstract

We show that the magnetism of Fe/Cu nanostructured thin films can be controlled by adjusting an interfacial FeCu alloy formed during in situ ion-beam bombardment of the Fe atoms, promoting intermixing between the Fe and Cu, forming an FeCu alloy. This intermixing results in prominent changes to the inter- and intracrystallite interactions which govern the magnetism. With increased interfacial alloy content, the films were modified from a multilayer to a dispersion morphology. This control over increased disorder tuned the magnetic interactions, such as enabling the coexistence of superparamagnetism of Fe nanocrystallites and magnetic ordering of the FeCu component so that a film’s coercivity increased with warming near TC.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Magnetic properties of thin films · Metallic Glasses and Amorphous Alloys · Microstructure and mechanical properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Seagate Technology, 1 Disc Drive, Springtown Ind Estate, Londonderry BT48 0BF, United Kingdom

Department of Physics & Astronomy, University of Manitoba, Winnipeg, MB R3T 2N2, Canada

Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, United States

Department of Materials Science and Engineering, National Chung Hsing University, Taichung 402, Taiwan

Funding

Canada Foundation for Innovation · Ministry of Science and Technology, Taiwan · Natural Sciences and Engineering Research Council of Canada

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