d° Ferromagnetism of Magnesium Oxide

Magnetism without d-orbital electrons seems to be unrealistic; however, recent observations of magnetism in non-magnetic oxides, such as ZnO, HfO2, and MgO, have opened new avenues in the field of magnetism. Magnetism exhibited by these oxides is known as d° ferromagnetism, as these oxides either ha...

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Main Authors: Jitendra Pal Singh, Keun Hwa Chae
Format: Article
Language:English
Published: MDPI AG 2017-11-01
Series:Condensed Matter
Subjects:
Online Access:https://www.mdpi.com/2410-3896/2/4/36
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author Jitendra Pal Singh
Keun Hwa Chae
author_facet Jitendra Pal Singh
Keun Hwa Chae
author_sort Jitendra Pal Singh
collection DOAJ
description Magnetism without d-orbital electrons seems to be unrealistic; however, recent observations of magnetism in non-magnetic oxides, such as ZnO, HfO2, and MgO, have opened new avenues in the field of magnetism. Magnetism exhibited by these oxides is known as d° ferromagnetism, as these oxides either have completely filled or unfilled d-/f-orbitals. This magnetism is believed to occur due to polarization induced by p-orbitals. Magnetic polarization in these oxides arises due to vacancies, the excitation of trapped spin in the triplet state. The presence of vacancies at the surface and subsurface also affects the magnetic behavior of these oxides. In the present review, origins of magnetism in magnesium oxide are discussed to obtain understanding of d° ferromagnetism.
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spelling doaj.art-24d37b785c0b44ba93fafcd086c542552022-12-22T04:21:01ZengMDPI AGCondensed Matter2410-38962017-11-01243610.3390/condmat2040036condmat2040036d° Ferromagnetism of Magnesium OxideJitendra Pal Singh0Keun Hwa Chae1Advanced Analysis Centre, Korea Institute of Science and Technology, Seoul 02792, KoreaAdvanced Analysis Centre, Korea Institute of Science and Technology, Seoul 02792, KoreaMagnetism without d-orbital electrons seems to be unrealistic; however, recent observations of magnetism in non-magnetic oxides, such as ZnO, HfO2, and MgO, have opened new avenues in the field of magnetism. Magnetism exhibited by these oxides is known as d° ferromagnetism, as these oxides either have completely filled or unfilled d-/f-orbitals. This magnetism is believed to occur due to polarization induced by p-orbitals. Magnetic polarization in these oxides arises due to vacancies, the excitation of trapped spin in the triplet state. The presence of vacancies at the surface and subsurface also affects the magnetic behavior of these oxides. In the present review, origins of magnetism in magnesium oxide are discussed to obtain understanding of d° ferromagnetism.https://www.mdpi.com/2410-3896/2/4/36d° ferromagnetismMgOpolarizationdefects
spellingShingle Jitendra Pal Singh
Keun Hwa Chae
d° Ferromagnetism of Magnesium Oxide
Condensed Matter
d° ferromagnetism
MgO
polarization
defects
title d° Ferromagnetism of Magnesium Oxide
title_full d° Ferromagnetism of Magnesium Oxide
title_fullStr d° Ferromagnetism of Magnesium Oxide
title_full_unstemmed d° Ferromagnetism of Magnesium Oxide
title_short d° Ferromagnetism of Magnesium Oxide
title_sort d° ferromagnetism of magnesium oxide
topic d° ferromagnetism
MgO
polarization
defects
url https://www.mdpi.com/2410-3896/2/4/36
work_keys_str_mv AT jitendrapalsingh dferromagnetismofmagnesiumoxide
AT keunhwachae dferromagnetismofmagnesiumoxide