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Electromagnetic functionalization of wide-bandgap dielectric oxides by boron interstitial doping
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(2018) Electromagnetic functionalization of wide-bandgap dielectric oxides by boron interstitial doping. Advanced Materials, 30 (39). 1802025. doi:10.1002/adma.201802025 ISSN 0935-9648.
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Official URL: http://dx.doi.org/10.1002/adma.201802025
Abstract
A surge in interest of oxide‐based materials is testimony for their potential utility in a wide array of device applications and offers a fascinating landscape for tuning the functional properties through a variety of physical and chemical parameters. In particular, selective electronic/defect doping has been demonstrated to be vital in tailoring novel functionalities, not existing in the bulk host oxides. Here, an extraordinary interstitial doping effect is demonstrated centered around a light element, boron (B). The host matrix is a novel composite system, made from discrete bulk LaAlO3:LaBO3 compounds. The findings show a spontaneous ordering of the interstitial B cations within the host LaAlO3 lattices, and subsequent spin‐polarized charge injection into the neighboring cations. This leads to a series of remarkable cation‐dominated electrical switching and high‐temperature ferromagnetism. Hence, the induced interstitial doping serves to transform a nonmagnetic insulating bulk oxide into a ferromagnetic ionic–electronic conductor. This unique interstitial B doping effect upon its control is proposed to be as a general route for extracting/modifying multifunctional properties in bulk oxides utilized in energy and spin‐based applications.
| Item Type: | Journal Article | |||||||||
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| Subjects: | Q Science > QC Physics | |||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||
| Library of Congress Subject Headings (LCSH): | Wide gap semiconductors, Semiconductor doping, Oxides, Boron, Cations | |||||||||
| Journal or Publication Title: | Advanced Materials | |||||||||
| Publisher: | Wiley - V C H Verlag | |||||||||
| ISSN: | 0935-9648 | |||||||||
| Official Date: | 26 September 2018 | |||||||||
| Dates: |
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| Volume: | 30 | |||||||||
| Number: | 39 | |||||||||
| Article Number: | 1802025 | |||||||||
| DOI: | 10.1002/adma.201802025 | |||||||||
| Status: | Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Reuse Statement (publisher, data, author rights): | "This is the pre-peer reviewed version of the following article: Park, Dae-Sung, Rees, Gregory J., Wang, Haiyuan, Rata, Diana, Morris, Andrew J., Maznichenko, Igor V., Ostanin, Sergey, Bhatnagar, Akash, Choi, Chel-Jong, Jónsson, Ragnar D. B., Kaufmann, Kai, Kashtiban, Reza J., Walker, Marc, Chiang, Cheng-Tien, Thorsteinsson, Einar B., Luo, Zhengdong, Park, In-Sung, Hanna, John V., Mertig, Ingrid, Dörr, Kathrin, Gíslason, Hafliði P. and McConville, C. F. (Chris F.) (2018) Electromagnetic functionalization of wide-bandgap dielectric oxides by boron interstitial doping. Advanced Materials, 1802025. which has been published in final form at http://dx.doi.org/10.1002/adma.201802025 This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions." | |||||||||
| Access rights to Published version: | Restricted or Subscription Access | |||||||||
| Date of first compliant deposit: | 24 August 2018 | |||||||||
| Date of first compliant Open Access: | 21 August 2019 | |||||||||
| RIOXX Funder/Project Grant: |
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