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Title: Use of Mesoscopic Host Matrix to Induce Ferrimagnetism in Antiferromagnetic Spinel Oxide [Use of Mesoscopic Host Matrix for Ferrimagnetism in Antiferromagnetic Spinel Oxide]

Abstract

Abstract Despite the advances in the methods for fabricating nanoscale materials, critical issues remain, such as the difficulties encountered in anchoring, and the deterioration in their stability after integration with other components. These issues need to be addressed to further increase the scope of their applicability. In this study, using epitaxial mesoscopic host matrices, materials are spatially confined at the nanoscale, and are supported, anchored, and stabilized. They also exhibit properties distinct from the bulk counterparts proving their high quality nanoscale nature. ZnFe 2 O 4 and SrTiO 3 are used as the model confined material and host matrix, respectively. The ZnFe 2 O 4 phases are spatially confined by the SrTiO 3 mesoscopic matrix and have strongly enhanced ferrimagnetic properties as compared to bulk and plain thin films of ZnFe 2 O 4 , with a Curie temperature of ≈500 K. The results of a series of control experiments and characterization measurements indicate that cationic inversion, which originates from the high interface‐to‐volume ratio of the ZnFe 2 O 4 phase in the ZnFe 2 O 4 –SrTiO 3 nanocomposite film, is responsible for the magnetization enhancement. An exchange bias is observed, owing to the coexistence of ferrimagnetic and antiferromagneticmore » regions in the confined ZnFe 2 O 4 phase. The magnetic properties are dependent on the ZnFe 2 O 4 crystallite size, which can be controlled by the growth conditions.« less

Authors:
 [1];  [2];  [3];  [4];  [4];  [5];  [2];  [2];  [5];  [2];  [1]
  1. Ulsan National Institute of Science and Technology (UNIST), Ulsan (Republic of Korea)
  2. Univ. of Cambridge, Cambridge (United Kingdom)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  4. Peking Univ., Beijing (China)
  5. Purdue Univ., West Lafayette, IN (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1476929
Alternate Identifier(s):
OSTI ID: 1417496
Report Number(s):
SAND-2018-10375J
Journal ID: ISSN 1616-301X; 668077
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
Advanced Functional Materials
Additional Journal Information:
Journal Volume: 28; Journal Issue: 11; Journal ID: ISSN 1616-301X
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; cationic inversion; ferrimagnetism; mesoscopic host matrix; nanocomposite; spinel

Citation Formats

Park, Chaewoon, Wu, Rui, Lu, Ping, Zhao, Hui, Yang, Jinbo, Zhang, Bruce, Li, Weiwei, Yun, Chao, Wang, Haiyan, MacManus-Driscoll, Judith L., and Cho, Seungho. Use of Mesoscopic Host Matrix to Induce Ferrimagnetism in Antiferromagnetic Spinel Oxide [Use of Mesoscopic Host Matrix for Ferrimagnetism in Antiferromagnetic Spinel Oxide]. United States: N. p., 2018. Web. doi:10.1002/adfm.201706220.
Park, Chaewoon, Wu, Rui, Lu, Ping, Zhao, Hui, Yang, Jinbo, Zhang, Bruce, Li, Weiwei, Yun, Chao, Wang, Haiyan, MacManus-Driscoll, Judith L., & Cho, Seungho. Use of Mesoscopic Host Matrix to Induce Ferrimagnetism in Antiferromagnetic Spinel Oxide [Use of Mesoscopic Host Matrix for Ferrimagnetism in Antiferromagnetic Spinel Oxide]. United States. https://doi.org/10.1002/adfm.201706220
Park, Chaewoon, Wu, Rui, Lu, Ping, Zhao, Hui, Yang, Jinbo, Zhang, Bruce, Li, Weiwei, Yun, Chao, Wang, Haiyan, MacManus-Driscoll, Judith L., and Cho, Seungho. Fri . "Use of Mesoscopic Host Matrix to Induce Ferrimagnetism in Antiferromagnetic Spinel Oxide [Use of Mesoscopic Host Matrix for Ferrimagnetism in Antiferromagnetic Spinel Oxide]". United States. https://doi.org/10.1002/adfm.201706220. https://www.osti.gov/servlets/purl/1476929.
@article{osti_1476929,
title = {Use of Mesoscopic Host Matrix to Induce Ferrimagnetism in Antiferromagnetic Spinel Oxide [Use of Mesoscopic Host Matrix for Ferrimagnetism in Antiferromagnetic Spinel Oxide]},
author = {Park, Chaewoon and Wu, Rui and Lu, Ping and Zhao, Hui and Yang, Jinbo and Zhang, Bruce and Li, Weiwei and Yun, Chao and Wang, Haiyan and MacManus-Driscoll, Judith L. and Cho, Seungho},
abstractNote = {Abstract Despite the advances in the methods for fabricating nanoscale materials, critical issues remain, such as the difficulties encountered in anchoring, and the deterioration in their stability after integration with other components. These issues need to be addressed to further increase the scope of their applicability. In this study, using epitaxial mesoscopic host matrices, materials are spatially confined at the nanoscale, and are supported, anchored, and stabilized. They also exhibit properties distinct from the bulk counterparts proving their high quality nanoscale nature. ZnFe 2 O 4 and SrTiO 3 are used as the model confined material and host matrix, respectively. The ZnFe 2 O 4 phases are spatially confined by the SrTiO 3 mesoscopic matrix and have strongly enhanced ferrimagnetic properties as compared to bulk and plain thin films of ZnFe 2 O 4 , with a Curie temperature of ≈500 K. The results of a series of control experiments and characterization measurements indicate that cationic inversion, which originates from the high interface‐to‐volume ratio of the ZnFe 2 O 4 phase in the ZnFe 2 O 4 –SrTiO 3 nanocomposite film, is responsible for the magnetization enhancement. An exchange bias is observed, owing to the coexistence of ferrimagnetic and antiferromagnetic regions in the confined ZnFe 2 O 4 phase. The magnetic properties are dependent on the ZnFe 2 O 4 crystallite size, which can be controlled by the growth conditions.},
doi = {10.1002/adfm.201706220},
journal = {Advanced Functional Materials},
number = 11,
volume = 28,
place = {United States},
year = {Fri Jan 19 00:00:00 EST 2018},
month = {Fri Jan 19 00:00:00 EST 2018}
}

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