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Title: Asymmetric magnetic proximity effect in a Pd/Co/Pd trilayer system

Abstract

In spintronic devices consisting of ferromagnetic/nonmagnetic systems, the ferromagnet-induced magnetic moment in the adjacent nonmagnetic material significantly influences the spin transport properties. In this study, such magnetic proximity effect in a Pd/Co/Pd trilayer system is investigated by x-ray magnetic circular dichroism and x-ray resonant magnetic reflectivity, which enables magnetic characterizations with element and depth resolution. We observe that the total Pd magnetic moments induced at the top Co/Pd interface are significantly larger than the Pd moments at the bottom Pd/Co interface, whereas transmission electron microscopy and reflectivity analysis indicate the two interfaces are nearly identical structurally. Furthermore, such asymmetry in magnetic proximity effects could be important for understanding spin transport characteristics in ferromagnetic/nonmagnetic systems and its potential application to spin devices.

Authors:
 [1];  [2];  [3];  [4];  [5];  [4];  [6]
  1. Soongsil Univ., Seoul (Republic of Korea); Korea Institute of Science and Technology, Seoul (Republic of Korea)
  2. Korea Institute of Science and Technology, Seoul (Republic of Korea); Sookmyung Women's Univ., Seoul (Republic of Korea)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Korea Institute of Science and Technology, Seoul (Republic of Korea)
  5. Sookmyung Women's Univ., Seoul (Republic of Korea)
  6. Soongsil Univ., Seoul (Republic of Korea); Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; National Research Foundation of Korea (NRF); Korea Institute of Science and Technology (KIST)
OSTI Identifier:
1275835
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 6; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Kim, Dong -Ok, Song, Kyung Mee, Choi, Yongseong, Min, Byoung -Chul, Kim, Jae -Sung, Choi, Jun Woo, and Lee, Dong Ryeol. Asymmetric magnetic proximity effect in a Pd/Co/Pd trilayer system. United States: N. p., 2016. Web. doi:10.1038/srep25391.
Kim, Dong -Ok, Song, Kyung Mee, Choi, Yongseong, Min, Byoung -Chul, Kim, Jae -Sung, Choi, Jun Woo, & Lee, Dong Ryeol. Asymmetric magnetic proximity effect in a Pd/Co/Pd trilayer system. United States. https://doi.org/10.1038/srep25391
Kim, Dong -Ok, Song, Kyung Mee, Choi, Yongseong, Min, Byoung -Chul, Kim, Jae -Sung, Choi, Jun Woo, and Lee, Dong Ryeol. 2016. "Asymmetric magnetic proximity effect in a Pd/Co/Pd trilayer system". United States. https://doi.org/10.1038/srep25391. https://www.osti.gov/servlets/purl/1275835.
@article{osti_1275835,
title = {Asymmetric magnetic proximity effect in a Pd/Co/Pd trilayer system},
author = {Kim, Dong -Ok and Song, Kyung Mee and Choi, Yongseong and Min, Byoung -Chul and Kim, Jae -Sung and Choi, Jun Woo and Lee, Dong Ryeol},
abstractNote = {In spintronic devices consisting of ferromagnetic/nonmagnetic systems, the ferromagnet-induced magnetic moment in the adjacent nonmagnetic material significantly influences the spin transport properties. In this study, such magnetic proximity effect in a Pd/Co/Pd trilayer system is investigated by x-ray magnetic circular dichroism and x-ray resonant magnetic reflectivity, which enables magnetic characterizations with element and depth resolution. We observe that the total Pd magnetic moments induced at the top Co/Pd interface are significantly larger than the Pd moments at the bottom Pd/Co interface, whereas transmission electron microscopy and reflectivity analysis indicate the two interfaces are nearly identical structurally. Furthermore, such asymmetry in magnetic proximity effects could be important for understanding spin transport characteristics in ferromagnetic/nonmagnetic systems and its potential application to spin devices.},
doi = {10.1038/srep25391},
url = {https://www.osti.gov/biblio/1275835}, journal = {Scientific Reports},
issn = {2045-2322},
number = ,
volume = 6,
place = {United States},
year = {Fri May 06 00:00:00 EDT 2016},
month = {Fri May 06 00:00:00 EDT 2016}
}

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Free Publicly Available Full Text
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Cited by: 26 works
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Works referenced in this record:

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Works referencing / citing this record:

Electric field effect on magnetism in a MgO/Pd/Co system with a solid-state capacitor structure
journal, November 2018


Measurements of interlayer exchange coupling of Pt in Py|Pt|Py system
journal, October 2018


Threshold interface magnetization required to induce magnetic proximity effect
journal, November 2019


Giant perpendicular magnetic anisotropy in Ir/Co/Pt multilayers
journal, October 2019


Giant perpendicular magnetic anisotropy in Ir/Co/Pt multilayers
text, January 2019


The interfacial nature of proximity-induced magnetism and the Dzyaloshinskii-Moriya interaction at the Pt/Co interface
journal, December 2017