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Title: Temperature dependence of the Dzyaloshinskii-Moriya interaction in Pt/Co/Cu thin film heterostructures

Abstract

Magnetic materials that exhibit chiral domain walls are of great interest for spintronic devices. In this work, we examine the temperature-dependent behavior of the Dzyaloshinskii-Moriya interaction (DMI) in Pt/Co/Cu thin film heterostructures. We extract the DMI strength, D, from static domain spacing analysis between 300 K and 500 K and compare its temperature dependence to that of the magnetic anisotropy, Ku, and saturation magnetization, Ms. Consistent with expected scaling in thin films, Ms exhibits Bloch-law temperature scaling and Ku scales as Ms2.1±0.1.

Authors:
ORCiD logo [1];  [2];  [2]
+ Show Author Affiliations
  1. Harvard Univ., Cambridge, MA (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Publication Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1540227
Alternate Identifier(s):
OSTI ID: 1467769
Grant/Contract Number:  
SC0012371
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 113; Journal Issue: 9; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Physics

Citation Formats

Schlotter, Sarah, Agrawal, Parnika, and Beach, Geoffrey S. D. Temperature dependence of the Dzyaloshinskii-Moriya interaction in Pt/Co/Cu thin film heterostructures. United States: N. p., 2018. Web. doi:10.1063/1.5038353.
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Schlotter, Sarah, Agrawal, Parnika, & Beach, Geoffrey S. D. Temperature dependence of the Dzyaloshinskii-Moriya interaction in Pt/Co/Cu thin film heterostructures. United States. doi:10.1063/1.5038353.
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Schlotter, Sarah, Agrawal, Parnika, and Beach, Geoffrey S. D. Mon . "Temperature dependence of the Dzyaloshinskii-Moriya interaction in Pt/Co/Cu thin film heterostructures". United States. doi:10.1063/1.5038353. https://www.osti.gov/servlets/purl/1540227.
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@article{osti_1540227,
title = {Temperature dependence of the Dzyaloshinskii-Moriya interaction in Pt/Co/Cu thin film heterostructures},
author = {Schlotter, Sarah and Agrawal, Parnika and Beach, Geoffrey S. D.},
abstractNote = {Magnetic materials that exhibit chiral domain walls are of great interest for spintronic devices. In this work, we examine the temperature-dependent behavior of the Dzyaloshinskii-Moriya interaction (DMI) in Pt/Co/Cu thin film heterostructures. We extract the DMI strength, D, from static domain spacing analysis between 300 K and 500 K and compare its temperature dependence to that of the magnetic anisotropy, Ku, and saturation magnetization, Ms. Consistent with expected scaling in thin films, Ms exhibits Bloch-law temperature scaling and Ku scales as Ms2.1±0.1.},
doi = {10.1063/1.5038353},
journal = {Applied Physics Letters},
number = 9,
volume = 113,
place = {United States},
year = {2018},
month = {8}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI:  10.1063/1.5038353
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Cited by: 5 works
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Figures / Tables:

FIG. 1 FIG. 1: (a) Schematic representation of the Ta (3)/[Pt (2)/Co (1.1)/Cu (1)]15/ Pt (2) sample (thicknesses in nm), with a room temperature magnetic force microscopy (MFM) image overlaid. (b) Out of plane (OOP) and in plane (IP) hysteresis loops taken by vibrating sample magnetometry (VSM). (c) Coercivity, Hc, as measuredmore » from OOP hysteresis loops after annealing at each temperature point for approximately 1 h. Hc begins to increase at approximately 500 K, which is the onset of annealing in this sample.« less
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    Works referencing / citing this record:

    Enhanced interfacial Dzyaloshinskii—Moriya interactions in annealed Pt/Co/MgO structures
    journal, January 2020

    Dzyaloshinskii-Moriya interaction and spin-orbit torque at the Ir/Co interface
    journal, April 2019

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