采用改进的静电纺丝装置结合溶胶凝胶技术制备了超长的定向排列的YMnO3/PVP复合纳米纤维,将其在900℃高温煅烧6 h得到了六方相YMnO3（H YMnO3）单晶纳米纤维。用SEM,XRD,TEM,SAED及VSM对样品的相纯度,表面形貌、晶体结构和磁性能进行了表征。结果表明：YMnO3/PVP复合纳米纤维的长度可达数米,表面光滑,定向度高,形貌均一,平均直径为150-230 nm;H-YMnO3纤维的直径为70-100 nm,表面光滑呈莲藕状;在室温下的磁测量结果表明,H-YMnO3纳米纤维具有弱铁磁性。
The ultralong and aligned YMnO3/PVP composite nanofibers have been synthesized by sol-gel based on modified electrospinning setup.After calcining the as-spun YMnO3/PVP fiber at 900℃for 6 h in air atmosphere,the single-crystalline hexagonal YMnO3（H-YMnO3） nanofiber can be obtained.The fabricated products were characterized by SEM,XRD,TEM,SAED and VSM to reveal the phase purity,morphologic,crystalline structure and magnetic properties.The results show that the YMnO3/PVP composite nanofibers presented smooth surface,high alignment degree and a rather uniform diameter around 150-230 nm over a length of several meters,the H-YMnO3 nanofibers exhibited lotusroot -like morphology and surface-smooth;and have a reduced diameter ranging from 70 to 100 nm. H-YMnO3 nanofibers has weak ferromagnetism at room temperature.
参考文献
| [1] | N.Fujimura, S.I.Azuma, N.Aoki, T.Yoshimura, T.Ito, Growth mechanism of YMnO3 film as a new candidate for nonvolatile memory devices, Journal of Applied Physics, 80, 7084(1996). |
| [2] | V.Laukhin, V.Skumrye, X.Marti, Electric-field control of exchange bias in multiferroic epitaxial heterostructures, Physical Review Letters, 97, 227201(2006). |
| [3] | D.Joonghoe, M.G.Blamire, Competing functionality in multiferroic YMnO3, Applied Physics Letters, 87, 252504(2005). |
| [4] | X.Marti, F.Sanchez, D.Hrabovsky, Exchange biasing and electric polarization with YMnO3, Applied Physics Letters, 89, 032510(2006). |
| [5] | 郑海务, 张大蔚, 王渊旭, 刘越峰, 李天峰, 顾玉宗, 张伟风.六方YMnO3多铁性薄膜的制备与性质研究进展, 人工晶体学报, 37(4), 955(2008). |
| [6] | CHEN Yan, YUAN Hongming, LI Guanghua, Crystal growth and magnetic property of orthorhombic RMnO3 (R=Sm–Ho) perovskites by mild hydrothermal synthesis, Journal of Crystal Growth, 305, 242(2007). |
| [7] | S.H.Kim, S.H.Lee, T.H.Kim, Growth, Ferroelectric properties, and phonon modes of YMnO3 single crystal, Cryst. Res. Tecnol, 35, 19(2000). |
| [8] | T.Lancaster, S.J.Blundell, D.Andreica, Magnetism in geometrically frustrated YMnO3 under hydrostatic pressure studied with muon spin relaxation, Physical Review Letters, 98, 197203(2007). |
| [9] | S.Imada, T.Kuraoka, E.Tokumitsu, H.Ishiwara, Ferroelectricity of YMnO3 thin films on Pt(111)/Al2O3 (0001) and Pt(111)/Y2O3 (111)/Si (111) structures grown by molecular beam epitaxy, Japanese Journal of Applied Physics, 40, 666(2001). |
| [10] | S.Imada, S.Shouriki, E.Tokumitsu, H.Ishiwara, Epitaxial growth of ferroelectric YMnO3 thin films on Si(111) substrates by molecular beam epitaxy, Japanese Journal of Applied Physics, 37, 6497(1998). |
| [11] | D.Ito, N.Fujimura, T.Yoshimura, T.Ito, Influence of schottky and poole–frenkel emission on the retention property of YMnO3-based metal/ferroelectric/insulator/ semiconductor capacitors, Journal of Applied Physics, 94, 4036(2003). |
| [12] | D.Ito, N.Fujimura, T.Yoshimura, T.Ito, Ferroelectric properties of YMnO3 epitaxial films for ferroelectric-gate field-effect transistors, Journal of Applied Physics, 93, 5563(2003). |
| [13] | D.Ito, N.Fujimura, T.Ito, Initial stage of film growth of pulsed laser deposited YMnO3, Japanese Journal of Applied Physics, 39, 5525(2000). |
| [14] | N.Fujimura, H.Sakata, D.Ito, T.Yoshimura, T.Yokota, T.Ito, Ferromagnetic and ferroelectric behaviors of A-site substituted YMnO3-based epitaxial thin films, Journal of Applied Physics, 93, 6990(2003). |
| [15] | E.Rokuta, Y.Hotta, H.Tabata, H.Kobayashi, T.Kawai, Low leakage current characteristics of YMnO3 on Si(111) using an ultrathin buffer layer of silicon oxynitride, Journal of Applied Physics, 88, 6598(2000). |
| [16] | T.Yoshimura, N.Fujimura, T.Ito, Ferroelectric properties of c-oriented YMnO3 films deposited on Si substrates, Applied Physics Letters, 73, 414(1998). |
| [17] | L.Seongsu, K.Misun, L.Changhee, A.Hoshikawa, M.Yonemura, T.Kamiyama, Multiferroic behavior and two-dimensional magnetism of hexagonal manganites, Physics B, 385/386, 405(2006). |
| [18] | D.Kim, D.Killingensmith, D.Dalton, Viorel Olariu, Fred Gnadinger, M.Rahman, Ferroelectric properties of YMnO3 films deposited by metalorganic chemical vapor deposition on Pt/Ti/SiO2/Si substrates, Materials Letters, 60, 295(2006). |
| [19] | N.Fujimura, H.Tanaka, H.Kitahata, T.Yoshimura, K.Tadanaga, T.Ito, YMnO3 thin films prepared from solutions for non volatile memory devices, Japanese Journal of Applied Physics, 36, 1601(1997). |
| [20] | H.Kitahata, K.Tadanaga, T.Minami, N.Fujimura, T.Ito, Lowering the crystallization temperature of YMnO3 thin films by the sol–gel method using an yttrium alkoxide, Japanese Journal of Applied Physics, 38, 5448(1999). |
| [21] | H.Kitahata, K.Tadanaga, T.Minami, N.Fujimura, T.Ito, Preparation and ferroelectric properties of YMnO3 thin films with c-axis preferred orientation by the sol-gel method, Journal of Sol-Gel Science and Technology, 19(1/3), 589(2000). |
| [22] | K.Suzuki, K.Nishizawa, T.Miki, K.Kato, Preparation and orientation control of RMnO3 (R=Y, Yb) thin film by chemical solution deposition, Journal of Crystal Growth, 237/239, 482(2002). |
| [23] | K.T.Kim, C.Kim, The effects of drying temperature on the crystallization of YMnO3 thin films prepared by sol-gel method using alkoxides, Journal of the European Ceramic Society, 24, 2613(2004). |
| [24] | 刘越峰, 郑海务, 张伟风, 顾玉宗, 李银丽, 张华荣.六方YMnO3纳米棒的制备、微结构及磁性研究, 功能材料, 8(41), 1336(2010). |
| [25] | H.T.Zhu, J.Luo, J.K.Liang, Synthesis and magnetic properties of antiferromagnetic Co3O4 nanoparticles, Physica B, 403, 3141(2008). |
| [26] | J.Y.Yu, S.L.Tang, X.K.Zhang, Synthesis and exchange bias effect of single-crystalline SrMn3O6?δ nanoribbons, Appl Phys Lett, 94, 182506(2009). |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%