(Fe1-xCox)3BO5纳米棒磁性的研究

崔宏飞; 李凯; 杨晨光; 贺淑莉

doi:10.7498/aps.64.057501

摘要

本文采用高温有机溶剂法制备了(Fe1-xCox)3BO5纳米棒, 通过控制反应物中乙酰丙酮钴的含量合成了不同Co含量的(Fe1-xCox)3BO5. 利用高分辨透射电子显微镜(HRTEM)、超导量子干涉磁强计(SQUID)对其形貌和磁性能进行了表征. 高分辨透射电子显微镜结果表明制备出的纳米(Fe1-xCox)3BO5为多晶棒状, 且具有多折孪晶结构; 磁性测量的结果表明,(Fe1-xCox)3BO5纳米棒在室温下表现出铁磁性, 随着Co含量的增加, 纳米棒的铁磁性逐渐增加, 该纳米棒有望用来研究生物大分子的机械性能.

关键词:

Abstract

Cobalt-doped ferroferriborate ((Fe1-xCox)3BO5) nanorods (NRs) have been synthesized by using a high-temperature organic-solution-phase method, and characterized by high resolution transmission electron microscope (HRTEM) and SQUID. The aspect ratios of the NRs are tuned by reductive decomposition of Fe(acac)3 and Co(acac)2 with a predetermined ratio. HRTEM showS that the sample is polycrystalline NRs and the top view of a NR tip reveals a multiply-twined structure. Magnetization curves indicate that (Fe1-xCox)3BO5 NRs are ferromagnetic above room temperature and the antiferromagnetic component is included, the magnetic properties are dramatically modified by Co substitutional doping. The NRs are expected to be used to study the mechanical properties of biological macromolecules.

Keywords:

作者及机构信息

1.
首都师范大学物理系, 北京 100048;

2.
首都师范大学化学系, 北京 100048

基金项目: 国家自然科学基金(批准号: 51171121)资助的课题.

Authors and contacts

1.
Department of Physics, Capital Normal University, Beijing 100048, China;

2.
Department of Chemistry, Capital Normal University, Beijing 100048, China

Funds: Project supported by the National Natural Science Foundation of China (Grant No.51171121).

参考文献

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施引文献

[1]	Douvalis A P, Moukarika A, Bakas T, Kallias G, Papaefthymiou V 2002 J. Phys.: Condens. Matter 14 3303
[2]	Mir M, Guimaraes R B, Fernandes J C, Continentino M A, Doriguetto A C, Mascarenhas Y P, Ellena J, Castellano E E, Freitas R S, Ghivelder L 2001 Phys. Rev. Lett. 87 147201
[3]	Fernandes J C, Guimaraes R B, Continentino M A, Ghivelder L, Freitas R S 2000 Phys. Rev. B 61 850
[4]	Guimaraes R B, Mir M, Fernandes J C, Continentino M A 1999 Phys. Rev. B 60 6617
[5]	Freitas D C, Continentino M A, Guimaraes R B, Fernandes J C, Ellena J, Ghivelder L 2008 Phys. Rev. B 77 184422
[6]	Bartolome J, Arauzo A, Kazak N, Ivanova N, Ovchinnikov S, Knyazev Y V, Lyubutin I 2011 Phys. Rev. B 83 144426
[7]	Cherkezova-Zheleva Z, Tsoncheva T, Tyuliev G, Mitov I 2006 Appl. Catal. A: General 298 24
[8]	Ruvalds J 1996 Supercond. Sci. Technol. 9 905
[9]	Douvalis A, Moukarika A, Bakas T, Kallias G, Papaefthymiou V J 2002 Phys.:Condens. Matter 14 3303
[10]	Bordet P, Suard E 2009 Phys. Rev. B 79 144408
[11]	Larrea J, Sanchez D, Baggio-Saitovitch E, Fernandes J, Guimaraes R, Continentino M, Litterst F J 2001 Magn. Magn. Mater 226 1079
[12]	Sanchez D, Litterst F, Baggio-Saitovitch E, Fernandes J, Guimaraes R, Continentino M 2004 Phys. Rev. B 70 174452
[13]	Rao G N, Yao Y, Chen J 2005 IEEE Trans. Magn 41 3409
[14]	Zhu H, Luo J, Liang J, Rao G, Li J, Zhang J, Du z 2008 Phys. B: Condens. Matter 403 3141
[15]	Zysler R D, Winkler E, Vasquez Mansilla M, Fiorani D 2006 Phys. B: Condens. Matter 384 277
[16]	Liu Y, Peng S, Ding Y, Rong C B, Kim J, Liu J P, Wang Z L, Sun S H 2009 Adv. Funct. Mater. 19 3146
[17]	Liu X C, Shi E W, Song L X, Zhang H W, Chen Z Z 2006 Acta Phys. Sin. 55 2557 (in Chinese) [刘学超, 施尔畏, 宋力昕, 张华伟, 陈之战 2006 55 2557]
[18]	Wang J Z, Fang Q Q 2004 Acta Phys. Sin. 53 3186 (in Chinese) [汪金枝, 方庆清 2004 53 3186]
[19]	Yan J, Sun Y, Wang C, Shi Z X, Deng S H, Shi K W, Lu H Q 2014 Acta Phys. Sin. 63 167502 (in Chinese) [闫军, 孙莹, 王聪, 史再兴, 邓司浩, 史可文, 卢会清 2014 63 167502]
[20]	Shang Z F, Qi W H, Ji D H, Xu J, Tang G D, Zhang X Y, Li Z Z, Lang L L 2014 Chin. Phys. B 23 107503
[21]	Tang Y M, Chen L Y, Wei J, Tang S L, Du Y W 2014 Chin. Phys. B 23 077503
[22]	He S L, Zhang H, Xing H, Li K., Cui H F, Yang C G, Sun S H, Zeng H 2014 Nano Lett. 14 3914
[23]	Chen J Y, Wiley B J, Xia Y 2007 Langmuir. 23 4120

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