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Title: Tailoring Spin Textures in Complex Oxide Micromagnets

Engineered topological spin textures with submicron dimensions in magnetic materials have emerged in recent years as the building blocks for various spin-based memory devices. Examples of these magnetic configurations include magnetic skyrmions, vortices, and domain walls. Here in this paper, we show the ability to control and characterize the evolution of spin textures in complex oxide micromagnets as a function of temperature through the delicate balance of fundamental materials parameters, micromagnet geometries, and epitaxial strain. These results demonstrate that in order to fully describe the observed spin textures, it is necessary to account for the spatial variation of the magnetic parameters within the micromagnet. This study provides the framework to accurately characterize such structures, leading to efficient design of spin-based memory devices based on complex oxide thin films.
Authors:
 [1] ;  [1] ;  [2] ;  [1] ;  [3] ;  [3] ; ORCiD logo [4] ;  [2] ;  [1]
  1. Univ. of California, Davis, CA (United States). Dept. of Materials Science and Engineering
  2. Norwegian Univ. of Science and Technology, Trondheim (Norway). Dept. of Electronics and Telecommunications
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS)
Publication Date:
Grant/Contract Number:
AC05-00OR22725; AC02-05CH11231; 190086/S10
Type:
Accepted Manuscript
Journal Name:
ACS Nano
Additional Journal Information:
Journal Volume: 10; Journal Issue: 9; Journal ID: ISSN 1936-0851
Publisher:
American Chemical Society (ACS)
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; complex oxides; magnetic anisotropy; micromagnetics; X-ray photoemission electron microscopy
OSTI Identifier:
1408016

Lee, Michael S., Wynn, Thomas A., Folven, Erik, Chopdekar, Rajesh V., Scholl, Andreas, Young, Anthony T., Retterer, Scott T., Grepstad, Jostein K., and Takamura, Yayoi. Tailoring Spin Textures in Complex Oxide Micromagnets. United States: N. p., Web. doi:10.1021/acsnano.6b03770.
Lee, Michael S., Wynn, Thomas A., Folven, Erik, Chopdekar, Rajesh V., Scholl, Andreas, Young, Anthony T., Retterer, Scott T., Grepstad, Jostein K., & Takamura, Yayoi. Tailoring Spin Textures in Complex Oxide Micromagnets. United States. doi:10.1021/acsnano.6b03770.
Lee, Michael S., Wynn, Thomas A., Folven, Erik, Chopdekar, Rajesh V., Scholl, Andreas, Young, Anthony T., Retterer, Scott T., Grepstad, Jostein K., and Takamura, Yayoi. 2016. "Tailoring Spin Textures in Complex Oxide Micromagnets". United States. doi:10.1021/acsnano.6b03770. https://www.osti.gov/servlets/purl/1408016.
@article{osti_1408016,
title = {Tailoring Spin Textures in Complex Oxide Micromagnets},
author = {Lee, Michael S. and Wynn, Thomas A. and Folven, Erik and Chopdekar, Rajesh V. and Scholl, Andreas and Young, Anthony T. and Retterer, Scott T. and Grepstad, Jostein K. and Takamura, Yayoi},
abstractNote = {Engineered topological spin textures with submicron dimensions in magnetic materials have emerged in recent years as the building blocks for various spin-based memory devices. Examples of these magnetic configurations include magnetic skyrmions, vortices, and domain walls. Here in this paper, we show the ability to control and characterize the evolution of spin textures in complex oxide micromagnets as a function of temperature through the delicate balance of fundamental materials parameters, micromagnet geometries, and epitaxial strain. These results demonstrate that in order to fully describe the observed spin textures, it is necessary to account for the spatial variation of the magnetic parameters within the micromagnet. This study provides the framework to accurately characterize such structures, leading to efficient design of spin-based memory devices based on complex oxide thin films.},
doi = {10.1021/acsnano.6b03770},
journal = {ACS Nano},
number = 9,
volume = 10,
place = {United States},
year = {2016},
month = {9}
}