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Title: Phase transitions and magnetic domain coexistence in Nd0.5Sr0.5MnO3 thin films

Abstract

© 2019 Elsevier B.V. We present a study of the physical properties of perovskite oxide Nd0.5Sr0.5MnO3 (NSMO) thin films grown on (110)-oriented SrTiO3 substrates. In bulk form, NSMO displays coupled magnetic and electronic transitions from paramagnetic/insulator to ferromagnetic (FM)/metal and then to antiferromagnetic (AFM)/charge-ordered insulator with decreasing temperature. In thin films, the AFM ordering only occurs when the films exist in an anisotropic strain state such as those obtained on (110)-oriented cubic substrates. In this work, resonant X-ray reflectivity, soft X-ray photoemission electron microscopy (X-PEEM), and magnetometry measurements showed that the NSMO film displays both vertical and lateral magnetic phase separation. Specifically, the film consists of three layers with different density and magnetic properties. The FM and AFM properties of the main NSMO layer were probed as a function of temperature using soft X-ray magnetic spectroscopy, and the coexistence of lateral FM and AFM domains was demonstrated at 110 K using X-PEEM.

Authors:
 [1];  [2];  [3];  [2];  [4];  [5];  [3];  [6];  [2]
  1. Univ. of California, Davis, CA (United States). Dept. of Chemical Engineering
  2. Univ. of California, Davis, CA (United States). Dept. of Materials Science and Engineering
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  4. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  6. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS); Cornell Univ., Ithaca, NY (United States). Cornell High Energy Synchrotron Source (CHESS)
Publication Date:
Research Org.:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
OSTI Identifier:
1605372
Alternate Identifier(s):
OSTI ID: 1634079; OSTI ID: 2325470
Grant/Contract Number:  
AC02-76SF00515; AC02-05CH1123; DMR 1411250; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Magnetism and Magnetic Materials
Additional Journal Information:
Journal Volume: 498; Journal Issue: C; Journal ID: ISSN 0304-8853
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Chiu, I-Ting, Kane, Alexander M., Chopdekar, Rajesh V., Lyu, Peifen, Mehta, Apurva, Rouleau, Chris M., N'Diaye, Alpha T., Arenholz, Elke, and Takamura, Yayoi. Phase transitions and magnetic domain coexistence in Nd0.5Sr0.5MnO3 thin films. United States: N. p., 2019. Web. doi:10.1016/j.jmmm.2019.166116.
Chiu, I-Ting, Kane, Alexander M., Chopdekar, Rajesh V., Lyu, Peifen, Mehta, Apurva, Rouleau, Chris M., N'Diaye, Alpha T., Arenholz, Elke, & Takamura, Yayoi. Phase transitions and magnetic domain coexistence in Nd0.5Sr0.5MnO3 thin films. United States. https://doi.org/10.1016/j.jmmm.2019.166116
Chiu, I-Ting, Kane, Alexander M., Chopdekar, Rajesh V., Lyu, Peifen, Mehta, Apurva, Rouleau, Chris M., N'Diaye, Alpha T., Arenholz, Elke, and Takamura, Yayoi. Tue . "Phase transitions and magnetic domain coexistence in Nd0.5Sr0.5MnO3 thin films". United States. https://doi.org/10.1016/j.jmmm.2019.166116. https://www.osti.gov/servlets/purl/1605372.
@article{osti_1605372,
title = {Phase transitions and magnetic domain coexistence in Nd0.5Sr0.5MnO3 thin films},
author = {Chiu, I-Ting and Kane, Alexander M. and Chopdekar, Rajesh V. and Lyu, Peifen and Mehta, Apurva and Rouleau, Chris M. and N'Diaye, Alpha T. and Arenholz, Elke and Takamura, Yayoi},
abstractNote = {© 2019 Elsevier B.V. We present a study of the physical properties of perovskite oxide Nd0.5Sr0.5MnO3 (NSMO) thin films grown on (110)-oriented SrTiO3 substrates. In bulk form, NSMO displays coupled magnetic and electronic transitions from paramagnetic/insulator to ferromagnetic (FM)/metal and then to antiferromagnetic (AFM)/charge-ordered insulator with decreasing temperature. In thin films, the AFM ordering only occurs when the films exist in an anisotropic strain state such as those obtained on (110)-oriented cubic substrates. In this work, resonant X-ray reflectivity, soft X-ray photoemission electron microscopy (X-PEEM), and magnetometry measurements showed that the NSMO film displays both vertical and lateral magnetic phase separation. Specifically, the film consists of three layers with different density and magnetic properties. The FM and AFM properties of the main NSMO layer were probed as a function of temperature using soft X-ray magnetic spectroscopy, and the coexistence of lateral FM and AFM domains was demonstrated at 110 K using X-PEEM.},
doi = {10.1016/j.jmmm.2019.166116},
journal = {Journal of Magnetism and Magnetic Materials},
number = C,
volume = 498,
place = {United States},
year = {Tue Nov 12 00:00:00 EST 2019},
month = {Tue Nov 12 00:00:00 EST 2019}
}

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