|
|||||
|
|
| M位与A位双固溶MAX相的磁学性能研究 | |
| 引用本文： | 张霄,李友兵,陈科,丁浩明,陈露,李勉,史蓉蓉,柴之芳,黄庆.M位与A位双固溶MAX相的磁学性能研究[J].无机材料学报,2021,36(12):1247-1255. |
| 作者姓名： | 张霄 李友兵 陈科 丁浩明 陈露 李勉 史蓉蓉 柴之芳 黄庆 |
| 作者单位： | 1.兰州大学 物理科学与技术学院, 磁学与磁性材料教育部重点实验室, 光转换材料与技术国家地方联合工程实验室, 兰州 730000 2.中国科学院 宁波材料技术与工程研究所, 先进能源材料工程实验室, 宁波 315201 3.宁波材料所杭州湾研究院, 宁波 315336 |
| 基金项目： | 国家自然科学基金(21671195);国家自然科学基金(51902319);国家自然科学基金(91426304);中国博士后科学基金(2020M680082);中国科学院国际伙伴计划(174433KYSB20190019);浙江省领军型创新创业团队(2019R01003) |
| 摘 要： | 三元层状化合物MAX相兼具金属与陶瓷优良的力学性质, 通常被认为是一类高安全结构材料。有研究显示, 通过熔盐法可以将副族元素插入到MAX相A位层间, 获得具有铁磁性能的V2(Sn, A)C (A =Fe、Co、Ni和Mn)材料。因而, 如何构建新的MAX相结构并对实现其磁性调控备受关注。本研究通过MAX相M位和A位双固溶的方式设计了四种新型MAX相(V, Nb)2(Sn, A)C (A =Fe、Co、Ni和Mn)。XRD、SEM、EDS结合TEM分析证实了上述新相的合成。超导量子磁强计(Superconducting quantum interference device magnetometer, SQUID)测试磁学性能发现, M位固溶后的MAX相的居里温度与其四方率(c/a)、元素组成有关。(V, Nb)2(Sn, Fe)C、(V, Nb)2(Sn, Ni)C、(V, Nb)2(Sn, Mn)C相较于M位固溶Nb元素之前的V2(Sn, A)C相, 其矫顽力Hc和剩余磁化强度Mr减小, 饱和磁化强度Ms增大。而V2(Sn, Co)C在M位固溶Nb元素之后磁性变化均与前述MAX相相反。通过以上结果, 揭示了M/A位双固溶对MAX相磁性的影响规律, 为调控MAX相磁性提供了新的思路。 |
| 关 键 词： | MAX相 双固溶 磁性 |
| 收稿时间： | 2021-03-03 |
| 修稿时间： | 2021-03-24 |
Tailoring MAX Phase Magnetic Property Based on M-site and A-site Double Solid Solution |
|
| ZHANG Xiao,LI Youbing,CHEN Ke,DING Haoming,CHEN Lu,LI Mian,SHI Rongrong,CHAI Zhifang,HUANG Qing.Tailoring MAX Phase Magnetic Property Based on M-site and A-site Double Solid Solution[J].Journal of Inorganic Materials,2021,36(12):1247-1255. | |
| Authors: | ZHANG Xiao LI Youbing CHEN Ke DING Haoming CHEN Lu LI Mian SHI Rongrong CHAI Zhifang HUANG Qing |
| Affiliation: | 1. State and Local Joint Engineering Laboratory of Light-conversion Materials and Technology, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China 2. Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China 3. Qianwan Institute of CNiTECH, Ningbo 315336, China |
| Abstract: | The three-dimensional layered compound MAX phase has excellent mechanical property of both metals and ceramics, which is generally considered as a kind of high safety structural materials. In recent reports, V2(Sn, A)C (A = Fe, Co, Ni and Mn) materials showed that antiferromagnetic property can be obtained by inserting the subgroup elements into A layer of MAX phase by molten salt method. However, how to further regulate magnetic properties of MAX phase through design of its crystal structure has attracted the attention of scholars in the field of spintronics and other fields. In this work, four new MAX phases of (V, Nb)2(Sn, A)C (A = Fe, Co, Ni and Mn) were synthesized based on M/A double solid solution by molten salt method, and proved to be synthesized successfully. Magnetic property of the MAX phases was checked by SQUID (superconducting quantum interference device magnetometer). It is found that the change of Curie temperature is correlated with tetragonal ratio (c/a) and elemental composition. Changes of lattice parameters, tetragonal rate and magnetic results before and after introducing Nb element into M site were further compared. Besides, the Hc and Mr of (V, Nb)2(Sn, Fe)C, (V, Nb)2(Sn, Ni)C, and (V, Nb)2(Sn, Mn)C decreased and the Mr increased compared with V2(Sn, A)C (A = Fe, Ni, Mn) before introducing Nb element into M site. All these results were opposite after introducing Nb element into M site of V2(Sn, Co)C which reveals the influence of M/A-site doble solid solution to the magnetic property of MAX phase, and provides a new way for tailoring magnetic property of MAX phase. |
| Keywords: | MAX phase double solid solution magnetic property |
| 点击此处可从《无机材料学报》浏览原始摘要信息 | |
| 点击此处可从《无机材料学报》下载全文 | |
