Dynamical freezing, magnetic ordering, and the magnetocaloric effect in nanostructured Fe/Cu thin films

Desautels, R. D.; Shueh, C.; Lin, K.-W.; Freeland, J. W.; van Lierop, J.

doi:10.1063/1.4948347

Title: Dynamical freezing, magnetic ordering, and the magnetocaloric effect in nanostructured Fe/Cu thin films

Journal Article · Fri Apr 29 00:00:00 EDT 2016 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4948347· OSTI ID:1346726

^[1]; Shueh, C. ^[2];

^[2];

^[3]; van Lierop, J. ^[1]

Univ. of Manitoba, Winnipeg, MB (Canada). Dept. of Physics and Astronomy
National Chung Hsing Univ., Taichung (Taiwan). Dept. of Materials Science and Engineering
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)

We report dynamical freezing of Fe nanocrystallites in a Cu matrix with magnetic ordering of an FeCu interfacial phase provides a unique window into the magnetocaloric effect. The FeCu alloy altered the Fe nanocrystallite surface atoms, and with a magnetic ordering temperature comparable to the dynamical freezing temperature of the nanocrystallites enabled Fe surface atoms to contribute to the overall magnetization. Tuning the amount of interfacial alloy resulted in the control of the magnetic ordering temperature and the magnetocaloric properties.

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Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: Natural Sciences and Engineering Research Council of Canada (NSERC); Canada Foundation for Innovation (CFI); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division

Grant/Contract Number:: AC02-06CH11357

OSTI ID:: 1346726

Journal Information:: Applied Physics Letters, Vol. 108, Issue 17; ISSN 0003-6951

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 10 works

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Cited By (1)

Surface engineering with Ar ⁺ /O ₂ ⁺ ion beam bombardment: Tuning the electronic and magnetic behavior of Ni ₈₀ Fe ₂₀ /La _0.7 Sr _0.3 MnO ₃ /SrTiO ₃ (001) junctions Bergenti, I.; Manna, P. K.; Lin, C. -H. Journal of Applied Physics, Vol. 124, Issue 18 https://doi.org/10.1063/1.5049235	journal	November 2018

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