@article{95f842fffb234861a11f7cb695b3ee01,
title = "Interfacial ferromagnetism and atomic structures in high-temperature grown Fe3O4/Pt/Fe3O4 epitaxial trilayers",
abstract = "Induced Pt ferromagnetism in Fe 3 O 4 / Pt / Fe 3 O 4 epitaxial trilayer films has been investigated by means of X-ray magnetic circular dichroism (XMCD) at the Pt L 3, 2-edges at various temperatures from 300 K to 12 K, including the metal-insulator transition temperature of Fe 3 O 4 (T V ∼ 114 K). At all the temperatures, we observed clear XMCD signals due to Pt ferromagnetism, the amplitude of which was determined to be 0.39 μ B at 300 K and 0.52 μ B at 12 K for the sample with the Pt thickness of ∼ 2 nm. Interestingly, these values are comparable to or even greater than those in Pt/3 d-ferromagnetic-metal (Fe, Ni, Co, and Ni 81 Fe 19) junction systems. The results can be interpreted in terms of a possible Fe interdiffusion into the Pt layer and also possible Fe-Pt alloying due to its high-temperature deposition.",
author = "T. Kikkawa and M. Suzuki and R. Ramos and Aguirre, {M. H.} and J. Okabayashi and K. Uchida and I. Lucas and A. Anad{\'o}n and D. Kikuchi and Algarabel, {P. A.} and L. Morell{\'o}n and Ibarra, {M. R.} and E. Saitoh",
note = "Funding Information: The authors thank Dr. T. Kuschel and Dr. R. Mattana for valuable discussions and also thank Dr. N. Kawamura for experimental assistance. The synchrotron radiation experiments were performed at the beamline BL39XU of SPring-8 synchrotron radiation facility with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (Proposal Nos. 2013B1910, 2014A1204, 2015A1178, and 2015A1457). The microscopy works were conducted in the Laboratorio de Microscop{\'i}as Avanzadas at Instituto de Nanociencia de Arag{\'o}n, Universidad de Zaragoza. This work was supported by the ERATO “Spin Quantum Rectification Project” (No. JPMJER1402) from JST, Japan, the Grant-in-Aid for Scientific Research on Innovative Area “Nano Spin Conversion Science” (No. JP26103005), the Grant-in-Aid for Scientific Research (B) (No. JP18H01465), the Grant-in-Aid for Research Activity Start-up (No. JP19K21031) from JSPS KAKENHI, Japan, the World Premier International Research Center Initiative (WPI) from MEXT, Japan, the H2020-MSCA-RISE-2016 SPICOLOST (No. 734187), the Spanish Ministry of Economy and Competitiveness (No. MAT2017-82970-C2, including FEDER), and the Aragon regional government (E26), Spain. Publisher Copyright: {\textcopyright} 2019 Author(s).",
year = "2019",
month = oct,
day = "14",
doi = "10.1063/1.5125761",
language = "English",
volume = "126",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics",
number = "14",
}