Point defects and magnetic properties of neutron irradiated MgO single crystal

Point defects and magnetic properties of neutron irradiated MgO single crystal

(100)-oriented MgO single crystals were irradiated to introduce point defects with different neutron doses ranging from 1.0×1016 to 1.0×1020 cm-2. The point defect configurations were studied with X-ray diffuse scattering and UV-Vis absorption spectra. The isointensity profiles of X-ray diffuse scat...

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Main Authors: Mengxiong Cao, Yaru Ma, Xingyu Wang, Chunlin Ma, Weiping Zhou, Xiaoxiong Wang, Weishi Tan, Jun Du
Format: Article
Language:English
Published: AIP Publishing LLC 2017-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4973942
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spelling doaj-1c7b57475ed844338f4ca85e4bf729cb2020-11-24T21:36:41ZengAIP Publishing LLCAIP Advances2158-32262017-05-0175056413056413-710.1063/1.4973942091791ADVPoint defects and magnetic properties of neutron irradiated MgO single crystalMengxiong Cao0Yaru Ma1Xingyu Wang2Chunlin Ma3Weiping Zhou4Xiaoxiong Wang5Weishi Tan6Jun Du7Key Laboratory of Soft Chemistry and Functional Materials, Ministry of Education, Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of ChinaKey Laboratory of Soft Chemistry and Functional Materials, Ministry of Education, Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of ChinaKey Laboratory of Soft Chemistry and Functional Materials, Ministry of Education, Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of ChinaKey Laboratory of Soft Chemistry and Functional Materials, Ministry of Education, Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of ChinaKey Laboratory of Soft Chemistry and Functional Materials, Ministry of Education, Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of ChinaKey Laboratory of Soft Chemistry and Functional Materials, Ministry of Education, Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of ChinaKey Laboratory of Soft Chemistry and Functional Materials, Ministry of Education, Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of ChinaNational Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, People’s Republic of China(100)-oriented MgO single crystals were irradiated to introduce point defects with different neutron doses ranging from 1.0×1016 to 1.0×1020 cm-2. The point defect configurations were studied with X-ray diffuse scattering and UV-Vis absorption spectra. The isointensity profiles of X-ray diffuse scattering caused by the cubic and double-force point defects in MgO were theoretically calculated based on the Huang scattering theory. The magnetic properties at different temperature were measured with superconducting quantum interference device (SQUID). The reciprocal space mappings (RSMs) of irradiated MgO revealed notable diffuse scattering. The UV-Vis spectra indicated the presence of O Frenkel defects in irradiated MgO. Neutron-irradiated MgO was diamagnetic at room temperature and became ferromagnetic at low temperature due to O Frenkel defects induced by neutron-irradiation.http://dx.doi.org/10.1063/1.4973942
collection DOAJ
language English
format Article
sources DOAJ
author Mengxiong Cao
Yaru Ma
Xingyu Wang
Chunlin Ma
Weiping Zhou
Xiaoxiong Wang
Weishi Tan
Jun Du
spellingShingle Mengxiong Cao
Yaru Ma
Xingyu Wang
Chunlin Ma
Weiping Zhou
Xiaoxiong Wang
Weishi Tan
Jun Du
Point defects and magnetic properties of neutron irradiated MgO single crystal
AIP Advances
author_facet Mengxiong Cao
Yaru Ma
Xingyu Wang
Chunlin Ma
Weiping Zhou
Xiaoxiong Wang
Weishi Tan
Jun Du
author_sort Mengxiong Cao
title Point defects and magnetic properties of neutron irradiated MgO single crystal
title_short Point defects and magnetic properties of neutron irradiated MgO single crystal
title_full Point defects and magnetic properties of neutron irradiated MgO single crystal
title_fullStr Point defects and magnetic properties of neutron irradiated MgO single crystal
title_full_unstemmed Point defects and magnetic properties of neutron irradiated MgO single crystal
title_sort point defects and magnetic properties of neutron irradiated mgo single crystal
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2017-05-01
description (100)-oriented MgO single crystals were irradiated to introduce point defects with different neutron doses ranging from 1.0×1016 to 1.0×1020 cm-2. The point defect configurations were studied with X-ray diffuse scattering and UV-Vis absorption spectra. The isointensity profiles of X-ray diffuse scattering caused by the cubic and double-force point defects in MgO were theoretically calculated based on the Huang scattering theory. The magnetic properties at different temperature were measured with superconducting quantum interference device (SQUID). The reciprocal space mappings (RSMs) of irradiated MgO revealed notable diffuse scattering. The UV-Vis spectra indicated the presence of O Frenkel defects in irradiated MgO. Neutron-irradiated MgO was diamagnetic at room temperature and became ferromagnetic at low temperature due to O Frenkel defects induced by neutron-irradiation.
url http://dx.doi.org/10.1063/1.4973942
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