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Atmospheric pressure synthesis of LiNbO3-MnTiO3 solid-solution single crystal and their magnetoelectric properties
- Acta Scientiarum Naturalium Universitatis Sunyatseni Vol. 63, Issue 5, Pages: 125-130(2024)
- 作者机构：
1.中山大学化学学院，广东 广州 510006
2.海南大学化学化工学院，海南 海口 570228
- 作者简介：
- 基金信息：
DOI：10.13471/j.cnki.acta.snus.ZR20240146
CLC： TB34;TM27Published：25 September 2024，
Published Online：22 July 2024，
Received：17 May 2024，
Accepted：07 June 2024
- 稿件说明：
移动端阅览
宋海利,赵爽,李满荣.常压合成LiNbO3-MnTiO3 固溶相单晶及其磁性能[J].中山大学学报(自然科学版)(中英文),2024,63(05):125-130.
SONG Haili,ZHAO Shuang,LI Manrong.Atmospheric pressure synthesis of LiNbO3-MnTiO3 solid-solution single crystal and their magnetoelectric properties[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2024,63(05):125-130.
宋海利,赵爽,李满荣.常压合成LiNbO3-MnTiO3 固溶相单晶及其磁性能[J].中山大学学报(自然科学版)(中英文),2024,63(05):125-130. DOI： 10.13471/j.cnki.acta.snus.ZR20240146.
SONG Haili,ZHAO Shuang,LI Manrong.Atmospheric pressure synthesis of LiNbO3-MnTiO3 solid-solution single crystal and their magnetoelectric properties[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2024,63(05):125-130. DOI： 10.13471/j.cnki.acta.snus.ZR20240146.
摘要
利用常压固相法合成掺杂10%和20% MnTiO
3
的
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https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=68796284&type=
3.21733332
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=68796278&type=
9.48266602
<math id="M2"><mo>-</mo><mi mathvariant="normal">M</mi><mi mathvariant="normal">n</mi><mi mathvariant="normal">T</mi><mi mathvariant="normal">i</mi><msub><mrow><mi mathvariant="normal">O</mi></mrow><mrow><mn mathvariant="normal">3</mn></mrow></msub></math>
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固溶相单晶，通过X射线衍射仪和球差校正透射电镜分析样品的结构特征，探究固溶相单晶的磁电性能和光学带隙变化。研究发现：MnTiO
3
相均匀掺杂在母相LiNbO
3
中并维持
<math id="M3"><mi mathvariant="normal">L</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">N</mi><mi mathvariant="normal">b</mi><msub><mrow><mi mathvariant="normal">O</mi></mrow><mrow><mn mathvariant="normal">3</mn></mrow></msub></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=68796298&type=
3.21733332
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9.48266602
<math id="M4"><mo>-</mo><mi>R</mi><mn mathvariant="normal">3</mn><mi>c</mi></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=68796289&type=
2.28600001
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6.60400009
结构。由于MnTiO
3
的掺杂，低温状态下样品表现弱磁性，且磁性来源于高自旋态的
<math id="M5"><mi mathvariant="normal">M</mi><msup><mrow><mi mathvariant="normal">n</mi></mrow><mrow><mn mathvariant="normal">2</mn><mo>+</mo></mrow></msup></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=68796292&type=
2.53999996
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=68796294&type=
6.51933336
。同时，基于母相LiNbO
3
的铁电效应，固溶相表现出明显的极性。此外，随着MnTiO
3
掺杂量的增大，固溶相样品的光学带隙逐渐减小。
Abstract
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https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=68796296&type=
3.21733332
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9.48266602
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https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=68796303&type=
11.68400002
solid-solution single crystal doped with 10% and 20% MnTiO
3
were synthesized by solid-state method at atmospheric pressure， and the structural characteristics of the samples were analyzed by X-ray diffractometer and spherical aberration corrected transmission electron microscope. The magnetoelectric properties and optical bandgap changes of the solid-solution single crystals were also studied. It was found that the MnTiO
3
phase was homogeneously doped in the parent
<math id="M8"><mi mathvariant="normal">L</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">N</mi><mi mathvariant="normal">b</mi><msub><mrow><mi mathvariant="normal">O</mi></mrow><mrow><mn mathvariant="normal">3</mn></mrow></msub></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=68796304&type=
3.80999994
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=68796316&type=
11.00666618
phase and maintained the
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https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=68796317&type=
3.80999994
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=68796319&type=
21.08200073
structure. Due to the doping of MnTiO
3
， the sample exhibits weak magnetism at low temperature， which is derived from the high-spin state of
<math id="M10"><mi mathvariant="normal">M</mi><msup><mrow><mi mathvariant="normal">n</mi></mrow><mrow><mn mathvariant="normal">2</mn><mo>+</mo></mrow></msup></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=68796308&type=
2.87866688
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7.45066643
. Originated from the ferroelectric effect of the parent LiNbO
3
， the solid-solution exhibits obvious polarity. In addition， with the increase of MnTiO
3
， the optical band gap of the sample gradually decreases.
关键词
常压固相法MnTiO3LiNbO3磁性
Keywords
atmospheric solid-state methodMnTiO3LiNbO3magnetism
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