Polarized neutron reflectometry of Epitaxial Fe[0.25 + x] Pt[0.75 - x] layers

G. J. Mankey, G. L. Causer, D. L. Cortie, X. Wang, H. Zhu, M. Ionescu, F. Klose

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Epitaxial Fe[0.25 + x]Pt[0.75 - x] layers can be either antiferromagnetic (AF) or ferromagnetic (FM) depending on the degree of chemical ordering controlled by the deposition temperature. Our neutron diffraction studies were the first to study AF phase transitions in these thin films [1] and we have also shown using PNR that a mixed AF-FM film is exchange biased with itself [2]. In AF-FM exchange-biased superlattices with a modulated chemical order parameter, PNR shows the magnetization can be modulated through the film thickness with no composition modulations [3]. Our recent results reveal that He+ ion bombardment and annealing can be applied toward controlling magnetic phases in epitaxial Fe [0.25] Pt [0.75] layers [4].

Original languageEnglish
Title of host publication2018 IEEE International Magnetic Conference, INTERMAG 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538664254
DOIs
StatePublished - 24 Oct 2018
Event2018 IEEE International Magnetic Conference, INTERMAG 2018 - Singapore, Singapore
Duration: 23 Apr 201827 Apr 2018

Publication series

Name2018 IEEE International Magnetic Conference, INTERMAG 2018

Conference

Conference2018 IEEE International Magnetic Conference, INTERMAG 2018
CountrySingapore
CitySingapore
Period23/04/1827/04/18

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