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
纸质出版日期:2024-09-25,
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.
利用常压固相法合成掺杂10%和20% MnTiO
3
的
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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
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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
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2.53999996
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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。
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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
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11.00666618
phase and maintained the
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21.08200073
structure. Due to the doping of Mn
TiO
3
, the sample exhibits weak magnetism at low temperature, which is derived from the high-spin state of
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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.
常压固相法MnTiO3LiNbO3磁性
atmospheric solid-state methodMnTiO3LiNbO3magnetism
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