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Ultralow energy switching with spin polarized magneto-electric properties of co-doped cubic phase BFO: A first-principles study

Bismuth ferrite BiFeO3 (BFO) is one of the most studied multiferroic materials. The coupling between electric polarization and magnetization provides the potential for the next-generation low-switching memory devices. To enhance the switching functionality of BFO, the effect of lanthanum (La) at A-s...

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Main Authors: Muhammad Tariq, Muhammad Tariq, Chaudhary, Kashif, Shaari, Amiruddin, Jalil, Arif, Ismail, Fairuz Dyana, Ahmed, Rashid, Haider, Zuhaib, Hussain, Rafaqat
Format: Article
Language:English
Published: Elsevier B.V. 2022
Subjects:
QC Physics
Online Access:http://eprints.utm.my/103209/1/AmiruddinShaari2022_UltralowEnergySwitchingwithSpinPolarized.pdf
http://eprints.utm.my/103209/
http://dx.doi.org/10.1016/j.cjph.2022.08.021
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spelling my.utm.1032092023-10-24T09:45:31Z http://eprints.utm.my/103209/ Ultralow energy switching with spin polarized magneto-electric properties of co-doped cubic phase BFO: A first-principles study Muhammad Tariq, Muhammad Tariq Chaudhary, Kashif Shaari, Amiruddin Jalil, Arif Ismail, Fairuz Dyana Ahmed, Rashid Haider, Zuhaib Hussain, Rafaqat QC Physics Bismuth ferrite BiFeO3 (BFO) is one of the most studied multiferroic materials. The coupling between electric polarization and magnetization provides the potential for the next-generation low-switching memory devices. To enhance the switching functionality of BFO, the effect of lanthanum (La) at A-site and cobalt (Co) at B-site as mono- and co-dopants on spin-polarized electronic structure, ferroelectric polarization, and magnetic properties are investigated using the first principles. An increase in the energy states density is observed with the introduction of La and Co atoms, which change the band gap in the spin-down state. La-doping significantly enhances the dielectric constant, whereas the dielectric constant for La and Co co-doped system decreases. Enhancement in the magnetic moment (µB)is detected on introducing Co atoms in BFO as mono- and co-dopant due to the combined involvement of La and Co, which destroy the cycloidal spin structure and activate the hidden spin. The high spin polarization of 87.08 % and linear Edelstein effect of 1.45 ×10–9 m/V are observed in La and Co co-substituted system. The ferroelectric polarization of La and Co co-doped BFO decreased (0.079 C/m2) significantly and has shown ultralow switching energy 0.52 aJ for magneto-electric spin-orbit (MESO) RAM capacitor. Elsevier B.V. 2022 Article PeerReviewed application/pdf en http://eprints.utm.my/103209/1/AmiruddinShaari2022_UltralowEnergySwitchingwithSpinPolarized.pdf Muhammad Tariq, Muhammad Tariq and Chaudhary, Kashif and Shaari, Amiruddin and Jalil, Arif and Ismail, Fairuz Dyana and Ahmed, Rashid and Haider, Zuhaib and Hussain, Rafaqat (2022) Ultralow energy switching with spin polarized magneto-electric properties of co-doped cubic phase BFO: A first-principles study. Chinese Journal of Physics, 79 (NA). pp. 211-224. ISSN 0577-9073 http://dx.doi.org/10.1016/j.cjph.2022.08.021 DOI : 10.1016/j.cjph.2022.08.021
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic QC Physics
spellingShingle QC Physics
Muhammad Tariq, Muhammad Tariq
Chaudhary, Kashif
Shaari, Amiruddin
Jalil, Arif
Ismail, Fairuz Dyana
Ahmed, Rashid
Haider, Zuhaib
Hussain, Rafaqat
Ultralow energy switching with spin polarized magneto-electric properties of co-doped cubic phase BFO: A first-principles study
description Bismuth ferrite BiFeO3 (BFO) is one of the most studied multiferroic materials. The coupling between electric polarization and magnetization provides the potential for the next-generation low-switching memory devices. To enhance the switching functionality of BFO, the effect of lanthanum (La) at A-site and cobalt (Co) at B-site as mono- and co-dopants on spin-polarized electronic structure, ferroelectric polarization, and magnetic properties are investigated using the first principles. An increase in the energy states density is observed with the introduction of La and Co atoms, which change the band gap in the spin-down state. La-doping significantly enhances the dielectric constant, whereas the dielectric constant for La and Co co-doped system decreases. Enhancement in the magnetic moment (µB)is detected on introducing Co atoms in BFO as mono- and co-dopant due to the combined involvement of La and Co, which destroy the cycloidal spin structure and activate the hidden spin. The high spin polarization of 87.08 % and linear Edelstein effect of 1.45 ×10–9 m/V are observed in La and Co co-substituted system. The ferroelectric polarization of La and Co co-doped BFO decreased (0.079 C/m2) significantly and has shown ultralow switching energy 0.52 aJ for magneto-electric spin-orbit (MESO) RAM capacitor.
format Article
author Muhammad Tariq, Muhammad Tariq
Chaudhary, Kashif
Shaari, Amiruddin
Jalil, Arif
Ismail, Fairuz Dyana
Ahmed, Rashid
Haider, Zuhaib
Hussain, Rafaqat
author_facet Muhammad Tariq, Muhammad Tariq
Chaudhary, Kashif
Shaari, Amiruddin
Jalil, Arif
Ismail, Fairuz Dyana
Ahmed, Rashid
Haider, Zuhaib
Hussain, Rafaqat
author_sort Muhammad Tariq, Muhammad Tariq
title Ultralow energy switching with spin polarized magneto-electric properties of co-doped cubic phase BFO: A first-principles study
title_short Ultralow energy switching with spin polarized magneto-electric properties of co-doped cubic phase BFO: A first-principles study
title_full Ultralow energy switching with spin polarized magneto-electric properties of co-doped cubic phase BFO: A first-principles study
title_fullStr Ultralow energy switching with spin polarized magneto-electric properties of co-doped cubic phase BFO: A first-principles study
title_full_unstemmed Ultralow energy switching with spin polarized magneto-electric properties of co-doped cubic phase BFO: A first-principles study
title_sort ultralow energy switching with spin polarized magneto-electric properties of co-doped cubic phase bfo: a first-principles study
publisher Elsevier B.V.
publishDate 2022
url http://eprints.utm.my/103209/1/AmiruddinShaari2022_UltralowEnergySwitchingwithSpinPolarized.pdf
http://eprints.utm.my/103209/
http://dx.doi.org/10.1016/j.cjph.2022.08.021
_version_ 1781777662367236096
score 13.211869

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